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2362 行
125 KiB
2362 行
125 KiB
using System;
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using System.Collections.Generic;
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using UnityEngine.Experimental.Rendering.HDPipeline.Internal;
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using UnityEngine.Rendering;
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using UnityEngine.Rendering.PostProcessing;
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namespace UnityEngine.Experimental.Rendering.HDPipeline
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{
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class ShadowSetup : IDisposable
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{
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// shadow related stuff
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const int k_MaxShadowDataSlots = 64;
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const int k_MaxPayloadSlotsPerShadowData = 4;
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ShadowmapBase[] m_Shadowmaps;
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ShadowManager m_ShadowMgr;
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static ComputeBuffer s_ShadowDataBuffer;
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static ComputeBuffer s_ShadowPayloadBuffer;
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public static GPUShadowType HDShadowLightType(Light l)
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{
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// We only process light with additional data
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var ald = l.GetComponent<HDAdditionalLightData>();
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if (ald == null)
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{
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return ShadowRegistry.ShadowLightType(l);
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}
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GPUShadowType shadowType = GPUShadowType.Unknown;
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switch (ald.lightTypeExtent)
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{
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case LightTypeExtent.Punctual:
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shadowType = ShadowRegistry.ShadowLightType(l);
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break;
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// Area and projector not supported yet
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}
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return shadowType;
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}
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public ShadowSetup(RenderPipelineResources resources, ShadowInitParameters shadowInit, ShadowSettings shadowSettings, out IShadowManager shadowManager)
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{
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s_ShadowDataBuffer = new ComputeBuffer( k_MaxShadowDataSlots, System.Runtime.InteropServices.Marshal.SizeOf( typeof( ShadowData ) ) );
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s_ShadowPayloadBuffer = new ComputeBuffer( k_MaxShadowDataSlots * k_MaxPayloadSlotsPerShadowData, System.Runtime.InteropServices.Marshal.SizeOf( typeof( ShadowPayload ) ) );
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ShadowAtlas.AtlasInit atlasInit;
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atlasInit.baseInit.width = (uint)shadowInit.shadowAtlasWidth;
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atlasInit.baseInit.height = (uint)shadowInit.shadowAtlasHeight;
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atlasInit.baseInit.slices = 1;
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atlasInit.baseInit.shadowmapBits = 32;
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atlasInit.baseInit.shadowmapFormat = RenderTextureFormat.Shadowmap;
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atlasInit.baseInit.samplerState = SamplerState.Default();
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atlasInit.baseInit.comparisonSamplerState = ComparisonSamplerState.Default();
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atlasInit.baseInit.clearColor = new Vector4( 0.0f, 0.0f, 0.0f, 0.0f );
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atlasInit.baseInit.maxPayloadCount = 0;
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atlasInit.baseInit.shadowSupport = ShadowmapBase.ShadowSupport.Directional | ShadowmapBase.ShadowSupport.Point | ShadowmapBase.ShadowSupport.Spot;
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atlasInit.shaderKeyword = null;
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atlasInit.shadowClearShader = resources.shadowClearShader;
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atlasInit.shadowBlurMoments = resources.shadowBlurMoments;
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var varianceInit = atlasInit;
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varianceInit.baseInit.shadowmapFormat = ShadowVariance.GetFormat( false, false, true );
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var varianceInit2 = varianceInit;
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varianceInit2.baseInit.shadowmapFormat = ShadowVariance.GetFormat( true, true, false );
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var varianceInit3 = varianceInit;
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varianceInit3.baseInit.shadowmapFormat = ShadowVariance.GetFormat( true, false, true );
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m_Shadowmaps = new ShadowmapBase[] { new ShadowVariance(ref varianceInit), new ShadowVariance(ref varianceInit2), new ShadowVariance(ref varianceInit3), new ShadowAtlas(ref atlasInit) };
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ShadowContext.SyncDel syncer = (ShadowContext sc) =>
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{
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// update buffers
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uint offset, count;
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ShadowData[] sds;
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sc.GetShadowDatas(out sds, out offset, out count);
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Debug.Assert(offset == 0);
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s_ShadowDataBuffer.SetData(sds); // unfortunately we can't pass an offset or count to this function
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ShadowPayload[] payloads;
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sc.GetPayloads(out payloads, out offset, out count);
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Debug.Assert(offset == 0);
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s_ShadowPayloadBuffer.SetData(payloads);
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};
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// binding code. This needs to be in sync with ShadowContext.hlsl
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ShadowContext.BindDel binder = (ShadowContext sc, CommandBuffer cb, ComputeShader computeShader, int computeKernel) =>
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{
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uint offset, count;
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RenderTargetIdentifier[] tex;
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sc.GetTex2DArrays(out tex, out offset, out count);
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// bind buffers
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cb.SetGlobalBuffer(HDShaderIDs._ShadowDatasExp, s_ShadowDataBuffer);
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cb.SetGlobalBuffer(HDShaderIDs._ShadowPayloads, s_ShadowPayloadBuffer);
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// bind textures
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cb.SetGlobalTexture(HDShaderIDs._ShadowmapExp_VSM_0, tex[0]);
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cb.SetGlobalTexture(HDShaderIDs._ShadowmapExp_VSM_1, tex[1]);
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cb.SetGlobalTexture(HDShaderIDs._ShadowmapExp_VSM_2, tex[2]);
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cb.SetGlobalTexture(HDShaderIDs._ShadowmapExp_PCF, tex[3]);
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// TODO: Currently samplers are hard coded in ShadowContext.hlsl, so we can't really set them here
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};
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ShadowContext.CtxtInit scInit;
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scInit.storage.maxShadowDataSlots = k_MaxShadowDataSlots;
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scInit.storage.maxPayloadSlots = k_MaxShadowDataSlots * k_MaxPayloadSlotsPerShadowData;
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scInit.storage.maxTex2DArraySlots = 4;
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scInit.storage.maxTexCubeArraySlots = 0;
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scInit.storage.maxComparisonSamplerSlots = 1;
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scInit.storage.maxSamplerSlots = 4;
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scInit.dataSyncer = syncer;
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scInit.resourceBinder = binder;
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m_ShadowMgr = new ShadowManager(shadowSettings, ref scInit, m_Shadowmaps);
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// set global overrides - these need to match the override specified in LightLoop/Shadow.hlsl
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bool useGlobalOverrides = true;
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m_ShadowMgr.SetGlobalShadowOverride( GPUShadowType.Point , ShadowAlgorithm.PCF, ShadowVariant.V2, ShadowPrecision.High, useGlobalOverrides );
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m_ShadowMgr.SetGlobalShadowOverride( GPUShadowType.Spot , ShadowAlgorithm.PCF, ShadowVariant.V2, ShadowPrecision.High, useGlobalOverrides );
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m_ShadowMgr.SetGlobalShadowOverride( GPUShadowType.Directional , ShadowAlgorithm.PCF, ShadowVariant.V3, ShadowPrecision.High, useGlobalOverrides );
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m_ShadowMgr.SetShadowLightTypeDelegate(HDShadowLightType);
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shadowManager = m_ShadowMgr;
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}
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public void Dispose()
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{
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if (m_Shadowmaps != null)
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{
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(m_Shadowmaps[0] as ShadowAtlas).Dispose();
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(m_Shadowmaps[1] as ShadowAtlas).Dispose();
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(m_Shadowmaps[2] as ShadowAtlas).Dispose();
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(m_Shadowmaps[3] as ShadowAtlas).Dispose();
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m_Shadowmaps = null;
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}
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m_ShadowMgr = null;
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if (s_ShadowDataBuffer != null)
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s_ShadowDataBuffer.Release();
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if (s_ShadowPayloadBuffer != null)
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s_ShadowPayloadBuffer.Release();
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}
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}
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//-----------------------------------------------------------------------------
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// structure definition
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//-----------------------------------------------------------------------------
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[GenerateHLSL]
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public enum LightVolumeType
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{
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Cone,
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Sphere,
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Box,
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Count
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}
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[GenerateHLSL]
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public enum LightCategory
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{
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Punctual,
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Area,
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Env,
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Count
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}
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[GenerateHLSL]
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public enum LightFeatureFlags
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{
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// Light bit mask must match LightDefinitions.s_LightFeatureMaskFlags value
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Punctual = 1 << 12,
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Area = 1 << 13,
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Directional = 1 << 14,
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Env = 1 << 15,
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Sky = 1 << 16,
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SSRefraction = 1 << 17,
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SSReflection = 1 << 18,
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// If adding more light be sure to not overflow LightDefinitions.s_LightFeatureMaskFlags
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}
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[GenerateHLSL]
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public class LightDefinitions
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{
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public static int s_MaxNrBigTileLightsPlusOne = 512; // may be overkill but the footprint is 2 bits per pixel using uint16.
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public static float s_ViewportScaleZ = 1.0f;
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public static int s_UseLeftHandCameraSpace = 1;
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public static int s_TileSizeFptl = 16;
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public static int s_TileSizeClustered = 32;
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// feature variants
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public static int s_NumFeatureVariants = 27;
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// Following define the maximum number of bits use in each feature category.
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public static uint s_LightFeatureMaskFlags = 0xFFF000;
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public static uint s_LightFeatureMaskFlagsOpaque = 0xFFF000 & ~((uint)LightFeatureFlags.SSRefraction); // Opaque don't support screen space refraction
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public static uint s_LightFeatureMaskFlagsTransparent = 0xFFF000 & ~((uint)LightFeatureFlags.SSReflection); // Transparent don't support screen space reflection
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public static uint s_MaterialFeatureMaskFlags = 0x000FFF; // don't use all bits just to be safe from signed and/or float conversions :/
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}
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[GenerateHLSL]
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public struct SFiniteLightBound
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{
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public Vector3 boxAxisX;
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public Vector3 boxAxisY;
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public Vector3 boxAxisZ;
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public Vector3 center; // a center in camera space inside the bounding volume of the light source.
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public Vector2 scaleXY;
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public float radius;
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};
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[GenerateHLSL]
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public struct LightVolumeData
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{
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public Vector3 lightPos;
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public uint lightVolume;
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public Vector3 lightAxisX;
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public uint lightCategory;
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public Vector3 lightAxisY;
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public float radiusSq;
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public Vector3 lightAxisZ; // spot +Z axis
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public float cotan;
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public Vector3 boxInnerDist;
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public uint featureFlags;
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public Vector3 boxInvRange;
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public float unused2;
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};
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public class LightLoop
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{
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public enum TileClusterDebug : int
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{
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None,
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Tile,
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Cluster,
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MaterialFeatureVariants
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};
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public enum TileClusterCategoryDebug : int
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{
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Punctual = 1,
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Area = 2,
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AreaAndPunctual = 3,
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Environment = 4,
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EnvironmentAndPunctual = 5,
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EnvironmentAndArea = 6,
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EnvironmentAndAreaAndPunctual = 7
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};
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public const int k_MaxDirectionalLightsOnScreen = 4;
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public const int k_MaxPunctualLightsOnScreen = 512;
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public const int k_MaxAreaLightsOnScreen = 64;
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public const int k_MaxLightsOnScreen = k_MaxDirectionalLightsOnScreen + k_MaxPunctualLightsOnScreen + k_MaxAreaLightsOnScreen;
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public const int k_MaxEnvLightsOnScreen = 64;
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public const int k_MaxShadowOnScreen = 16;
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public const int k_MaxCascadeCount = 4; //Should be not less than m_Settings.directionalLightCascadeCount;
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static readonly Vector3 k_BoxCullingExtentThreshold = Vector3.one * 0.01f;
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// Static keyword is required here else we get a "DestroyBuffer can only be called from the main thread"
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static ComputeBuffer s_DirectionalLightDatas = null;
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static ComputeBuffer s_LightDatas = null;
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static ComputeBuffer s_EnvLightDatas = null;
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static ComputeBuffer s_shadowDatas = null;
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static Texture2DArray s_DefaultTexture2DArray;
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static Cubemap s_DefaultTextureCube;
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PlanarReflectionProbeCache m_ReflectionPlanarProbeCache;
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ReflectionProbeCache m_ReflectionProbeCache;
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TextureCache2D m_CookieTexArray;
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TextureCacheCubemap m_CubeCookieTexArray;
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List<Matrix4x4> m_Env2DCaptureVP = new List<Matrix4x4>();
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public class LightList
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{
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public List<DirectionalLightData> directionalLights;
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public List<LightData> lights;
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public List<EnvLightData> envLights;
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public List<ShadowData> shadows;
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public List<SFiniteLightBound> bounds;
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public List<LightVolumeData> lightVolumes;
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public void Clear()
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{
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directionalLights.Clear();
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lights.Clear();
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envLights.Clear();
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shadows.Clear();
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bounds.Clear();
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lightVolumes.Clear();
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}
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public void Allocate()
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{
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directionalLights = new List<DirectionalLightData>();
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lights = new List<LightData>();
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envLights = new List<EnvLightData>();
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shadows = new List<ShadowData>();
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bounds = new List<SFiniteLightBound>();
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lightVolumes = new List<LightVolumeData>();
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}
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}
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LightList m_lightList;
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int m_punctualLightCount = 0;
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int m_areaLightCount = 0;
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int m_lightCount = 0;
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bool m_enableBakeShadowMask = false; // Track if any light require shadow mask. In this case we will need to enable the keyword shadow mask
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float m_maxShadowDistance = 0.0f; // Save value from shadow settings
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private ComputeShader buildScreenAABBShader { get { return m_Resources.buildScreenAABBShader; } }
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private ComputeShader buildPerTileLightListShader { get { return m_Resources.buildPerTileLightListShader; } }
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private ComputeShader buildPerBigTileLightListShader { get { return m_Resources.buildPerBigTileLightListShader; } }
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private ComputeShader buildPerVoxelLightListShader { get { return m_Resources.buildPerVoxelLightListShader; } }
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private ComputeShader buildMaterialFlagsShader { get { return m_Resources.buildMaterialFlagsShader; } }
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private ComputeShader buildDispatchIndirectShader { get { return m_Resources.buildDispatchIndirectShader; } }
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private ComputeShader clearDispatchIndirectShader { get { return m_Resources.clearDispatchIndirectShader; } }
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private ComputeShader deferredComputeShader { get { return m_Resources.deferredComputeShader; } }
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private ComputeShader deferredDirectionalShadowComputeShader { get { return m_Resources.deferredDirectionalShadowComputeShader; } }
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static int s_GenAABBKernel;
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static int s_GenListPerTileKernel;
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static int s_GenListPerVoxelKernel;
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static int s_ClearVoxelAtomicKernel;
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static int s_ClearDispatchIndirectKernel;
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static int s_BuildDispatchIndirectKernel;
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static int s_BuildMaterialFlagsWriteKernel;
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static int s_BuildMaterialFlagsOrKernel;
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static int s_shadeOpaqueDirectFptlKernel;
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static int s_shadeOpaqueDirectFptlDebugDisplayKernel;
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static int s_shadeOpaqueDirectShadowMaskFptlKernel;
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static int s_shadeOpaqueDirectShadowMaskFptlDebugDisplayKernel;
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static int[] s_shadeOpaqueIndirectFptlKernels = new int[LightDefinitions.s_NumFeatureVariants];
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static int[] s_shadeOpaqueIndirectShadowMaskFptlKernels = new int[LightDefinitions.s_NumFeatureVariants];
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static int s_deferredDirectionalShadowKernel;
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static int s_deferredDirectionalShadow_Contact_Kernel;
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static int s_deferredDirectionalShadow_Normals_Kernel;
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static int s_deferredDirectionalShadow_Contact_Normals_Kernel;
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static ComputeBuffer s_LightVolumeDataBuffer = null;
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static ComputeBuffer s_ConvexBoundsBuffer = null;
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static ComputeBuffer s_AABBBoundsBuffer = null;
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static ComputeBuffer s_LightList = null;
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static ComputeBuffer s_TileList = null;
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static ComputeBuffer s_TileFeatureFlags = null;
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static ComputeBuffer s_DispatchIndirectBuffer = null;
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static ComputeBuffer s_BigTileLightList = null; // used for pre-pass coarse culling on 64x64 tiles
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static int s_GenListPerBigTileKernel;
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const bool k_UseDepthBuffer = true; // only has an impact when EnableClustered is true (requires a depth-prepass)
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const int k_Log2NumClusters = 6; // accepted range is from 0 to 6. NumClusters is 1<<g_iLog2NumClusters
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const float k_ClustLogBase = 1.02f; // each slice 2% bigger than the previous
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float m_ClustScale;
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static ComputeBuffer s_PerVoxelLightLists = null;
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static ComputeBuffer s_PerVoxelOffset = null;
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static ComputeBuffer s_PerTileLogBaseTweak = null;
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static ComputeBuffer s_GlobalLightListAtomic = null;
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public enum ClusterPrepassSource : int
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{
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None = 0,
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BigTile = 1,
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Count = 2,
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}
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public enum ClusterDepthSource : int
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{
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NoDepth = 0,
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Depth = 1,
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MSAA_Depth = 2,
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Count = 3,
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}
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static string[,] s_ClusterKernelNames = new string[(int)ClusterPrepassSource.Count, (int)ClusterDepthSource.Count]
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{
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{ "TileLightListGen_NoDepthRT", "TileLightListGen_DepthRT", "TileLightListGen_DepthRT_MSAA" },
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{ "TileLightListGen_NoDepthRT_SrcBigTile", "TileLightListGen_DepthRT_SrcBigTile", "TileLightListGen_DepthRT_MSAA_SrcBigTile" }
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};
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// clustered light list specific buffers and data end
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static int[] s_TempIntArray = new int[2]; // Used to avoid GC stress when calling SetComputeIntParams
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FrameSettings m_FrameSettings = null;
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RenderPipelineResources m_Resources = null;
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// Following is an array of material of size eight for all combination of keyword: OUTPUT_SPLIT_LIGHTING - LIGHTLOOP_TILE_PASS - SHADOWS_SHADOWMASK - USE_FPTL_LIGHTLIST/USE_CLUSTERED_LIGHTLIST - DEBUG_DISPLAY
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Material[] m_deferredLightingMaterial;
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Material m_DebugViewTilesMaterial;
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Material m_DebugShadowMapMaterial;
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Material m_CubeToPanoMaterial;
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Light m_CurrentSunLight;
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int m_CurrentSunLightShadowIndex = -1;
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public Light GetCurrentSunLight() { return m_CurrentSunLight; }
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// shadow related stuff
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FrameId m_FrameId = new FrameId();
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ShadowSetup m_ShadowSetup; // doesn't actually have to reside here, it would be enough to pass the IShadowManager in from the outside
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IShadowManager m_ShadowMgr;
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List<int> m_ShadowRequests = new List<int>();
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Dictionary<int, int> m_ShadowIndices = new Dictionary<int, int>();
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void InitShadowSystem(HDRenderPipelineAsset hdAsset, ShadowSettings shadowSettings)
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{
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m_ShadowSetup = new ShadowSetup(hdAsset.renderPipelineResources, hdAsset.GetRenderPipelineSettings().shadowInitParams, shadowSettings, out m_ShadowMgr);
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}
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void DeinitShadowSystem()
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{
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if (m_ShadowSetup != null)
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{
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m_ShadowSetup.Dispose();
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m_ShadowSetup = null;
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m_ShadowMgr = null;
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}
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}
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int GetNumTileFtplX(HDCamera hdCamera)
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{
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return (hdCamera.actualWidth + (LightDefinitions.s_TileSizeFptl - 1)) / LightDefinitions.s_TileSizeFptl;
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}
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int GetNumTileFtplY(HDCamera hdCamera)
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{
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return (hdCamera.actualHeight + (LightDefinitions.s_TileSizeFptl - 1)) / LightDefinitions.s_TileSizeFptl;
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}
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int GetNumTileClusteredX(HDCamera hdCamera)
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{
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return (hdCamera.actualWidth + (LightDefinitions.s_TileSizeClustered - 1)) / LightDefinitions.s_TileSizeClustered;
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}
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int GetNumTileClusteredY(HDCamera hdCamera)
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{
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return (hdCamera.actualHeight + (LightDefinitions.s_TileSizeClustered - 1)) / LightDefinitions.s_TileSizeClustered;
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}
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public bool GetFeatureVariantsEnabled()
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{
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return !m_FrameSettings.enableForwardRenderingOnly && m_FrameSettings.lightLoopSettings.isFptlEnabled && m_FrameSettings.lightLoopSettings.enableComputeLightEvaluation &&
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(m_FrameSettings.lightLoopSettings.enableComputeLightVariants || m_FrameSettings.lightLoopSettings.enableComputeMaterialVariants);
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}
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public LightLoop()
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{}
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int GetDeferredLightingMaterialIndex(int outputSplitLighting, int lightLoopTilePass, int shadowMask, int debugDisplay)
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{
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return (outputSplitLighting) | (lightLoopTilePass << 1) | (shadowMask << 2) | (debugDisplay << 3);
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}
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public void Build(HDRenderPipelineAsset hdAsset, ShadowSettings shadowSettings, IBLFilterGGX iblFilterGGX)
|
|
{
|
|
m_Resources = hdAsset.renderPipelineResources;
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m_DebugViewTilesMaterial = CoreUtils.CreateEngineMaterial(m_Resources.debugViewTilesShader);
|
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m_DebugShadowMapMaterial = CoreUtils.CreateEngineMaterial(m_Resources.debugShadowMapShader);
|
|
m_CubeToPanoMaterial = CoreUtils.CreateEngineMaterial(m_Resources.cubeToPanoShader);
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|
|
|
m_lightList = new LightList();
|
|
m_lightList.Allocate();
|
|
m_Env2DCaptureVP.Clear();
|
|
for (int i = 0, c = Mathf.Max(1, hdAsset.renderPipelineSettings.lightLoopSettings.maxPlanarReflectionProbes); i < c; ++i)
|
|
m_Env2DCaptureVP.Add(Matrix4x4.identity);
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|
|
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s_DirectionalLightDatas = new ComputeBuffer(k_MaxDirectionalLightsOnScreen, System.Runtime.InteropServices.Marshal.SizeOf(typeof(DirectionalLightData)));
|
|
s_LightDatas = new ComputeBuffer(k_MaxPunctualLightsOnScreen + k_MaxAreaLightsOnScreen, System.Runtime.InteropServices.Marshal.SizeOf(typeof(LightData)));
|
|
s_EnvLightDatas = new ComputeBuffer(k_MaxEnvLightsOnScreen, System.Runtime.InteropServices.Marshal.SizeOf(typeof(EnvLightData)));
|
|
s_shadowDatas = new ComputeBuffer(k_MaxCascadeCount + k_MaxShadowOnScreen, System.Runtime.InteropServices.Marshal.SizeOf(typeof(ShadowData)));
|
|
|
|
GlobalLightLoopSettings gLightLoopSettings = hdAsset.GetRenderPipelineSettings().lightLoopSettings;
|
|
m_CookieTexArray = new TextureCache2D();
|
|
m_CookieTexArray.AllocTextureArray(gLightLoopSettings.cookieTexArraySize, gLightLoopSettings.cookieSize, gLightLoopSettings.cookieSize, TextureFormat.RGBA32, true);
|
|
m_CubeCookieTexArray = new TextureCacheCubemap();
|
|
m_CubeCookieTexArray.AllocTextureArray(gLightLoopSettings.cubeCookieTexArraySize, gLightLoopSettings.pointCookieSize, TextureFormat.RGBA32, true, m_CubeToPanoMaterial);
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|
|
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TextureFormat probeCacheFormat = gLightLoopSettings.reflectionCacheCompressed ? TextureFormat.BC6H : TextureFormat.RGBAHalf;
|
|
m_ReflectionProbeCache = new ReflectionProbeCache(hdAsset, iblFilterGGX, gLightLoopSettings.reflectionProbeCacheSize, gLightLoopSettings.reflectionCubemapSize, probeCacheFormat, true);
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|
|
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TextureFormat planarProbeCacheFormat = gLightLoopSettings.planarReflectionCacheCompressed ? TextureFormat.BC6H : TextureFormat.RGBAHalf;
|
|
m_ReflectionPlanarProbeCache = new PlanarReflectionProbeCache(hdAsset, iblFilterGGX, gLightLoopSettings.planarReflectionProbeCacheSize, gLightLoopSettings.planarReflectionTextureSize, planarProbeCacheFormat, true);
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|
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s_GenAABBKernel = buildScreenAABBShader.FindKernel("ScreenBoundsAABB");
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|
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|
s_AABBBoundsBuffer = new ComputeBuffer(2 * k_MaxLightsOnScreen, 3 * sizeof(float));
|
|
s_ConvexBoundsBuffer = new ComputeBuffer(k_MaxLightsOnScreen, System.Runtime.InteropServices.Marshal.SizeOf(typeof(SFiniteLightBound)));
|
|
s_LightVolumeDataBuffer = new ComputeBuffer(k_MaxLightsOnScreen, System.Runtime.InteropServices.Marshal.SizeOf(typeof(LightVolumeData)));
|
|
s_DispatchIndirectBuffer = new ComputeBuffer(LightDefinitions.s_NumFeatureVariants * 3, sizeof(uint), ComputeBufferType.IndirectArguments);
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|
|
|
// Cluster
|
|
{
|
|
s_ClearVoxelAtomicKernel = buildPerVoxelLightListShader.FindKernel("ClearAtomic");
|
|
s_GlobalLightListAtomic = new ComputeBuffer(1, sizeof(uint));
|
|
}
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|
|
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s_GenListPerBigTileKernel = buildPerBigTileLightListShader.FindKernel("BigTileLightListGen");
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|
|
|
s_BuildDispatchIndirectKernel = buildDispatchIndirectShader.FindKernel("BuildDispatchIndirect");
|
|
s_ClearDispatchIndirectKernel = clearDispatchIndirectShader.FindKernel("ClearDispatchIndirect");
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|
|
|
s_BuildMaterialFlagsOrKernel = buildMaterialFlagsShader.FindKernel("MaterialFlagsGen_Or");
|
|
s_BuildMaterialFlagsWriteKernel = buildMaterialFlagsShader.FindKernel("MaterialFlagsGen_Write");
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|
|
|
s_shadeOpaqueDirectFptlKernel = deferredComputeShader.FindKernel("Deferred_Direct_Fptl");
|
|
s_shadeOpaqueDirectFptlDebugDisplayKernel = deferredComputeShader.FindKernel("Deferred_Direct_Fptl_DebugDisplay");
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|
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|
s_shadeOpaqueDirectShadowMaskFptlKernel = deferredComputeShader.FindKernel("Deferred_Direct_ShadowMask_Fptl");
|
|
s_shadeOpaqueDirectShadowMaskFptlDebugDisplayKernel = deferredComputeShader.FindKernel("Deferred_Direct_ShadowMask_Fptl_DebugDisplay");
|
|
|
|
s_deferredDirectionalShadowKernel = deferredDirectionalShadowComputeShader.FindKernel("DeferredDirectionalShadow");
|
|
s_deferredDirectionalShadow_Contact_Kernel = deferredDirectionalShadowComputeShader.FindKernel("DeferredDirectionalShadow_Contact");
|
|
s_deferredDirectionalShadow_Normals_Kernel = deferredDirectionalShadowComputeShader.FindKernel("DeferredDirectionalShadow_Normals");
|
|
s_deferredDirectionalShadow_Contact_Normals_Kernel = deferredDirectionalShadowComputeShader.FindKernel("DeferredDirectionalShadow_Contact_Normals");
|
|
|
|
for (int variant = 0; variant < LightDefinitions.s_NumFeatureVariants; variant++)
|
|
{
|
|
s_shadeOpaqueIndirectFptlKernels[variant] = deferredComputeShader.FindKernel("Deferred_Indirect_Fptl_Variant" + variant);
|
|
s_shadeOpaqueIndirectShadowMaskFptlKernels[variant] = deferredComputeShader.FindKernel("Deferred_Indirect_ShadowMask_Fptl_Variant" + variant);
|
|
}
|
|
|
|
s_LightList = null;
|
|
s_TileList = null;
|
|
s_TileFeatureFlags = null;
|
|
|
|
// OUTPUT_SPLIT_LIGHTING - LIGHTLOOP_TILE_PASS - SHADOWS_SHADOWMASK - DEBUG_DISPLAY
|
|
m_deferredLightingMaterial = new Material[16];
|
|
|
|
for (int outputSplitLighting = 0; outputSplitLighting < 2; ++outputSplitLighting)
|
|
{
|
|
for (int lightLoopTilePass = 0; lightLoopTilePass < 2; ++lightLoopTilePass)
|
|
{
|
|
for (int shadowMask = 0; shadowMask < 2; ++shadowMask)
|
|
{
|
|
for (int debugDisplay = 0; debugDisplay < 2; ++debugDisplay)
|
|
{
|
|
int index = GetDeferredLightingMaterialIndex(outputSplitLighting, lightLoopTilePass, shadowMask, debugDisplay);
|
|
|
|
m_deferredLightingMaterial[index] = CoreUtils.CreateEngineMaterial(m_Resources.deferredShader);
|
|
CoreUtils.SetKeyword(m_deferredLightingMaterial[index], "OUTPUT_SPLIT_LIGHTING", outputSplitLighting == 1);
|
|
CoreUtils.SelectKeyword(m_deferredLightingMaterial[index], "LIGHTLOOP_TILE_PASS", "LIGHTLOOP_SINGLE_PASS", lightLoopTilePass == 1);
|
|
CoreUtils.SetKeyword(m_deferredLightingMaterial[index], "SHADOWS_SHADOWMASK", shadowMask == 1);
|
|
CoreUtils.SetKeyword(m_deferredLightingMaterial[index], "DEBUG_DISPLAY", debugDisplay == 1);
|
|
|
|
m_deferredLightingMaterial[index].SetInt(HDShaderIDs._StencilMask, (int)HDRenderPipeline.StencilBitMask.LightingMask);
|
|
m_deferredLightingMaterial[index].SetInt(HDShaderIDs._StencilRef, outputSplitLighting == 1 ? (int)StencilLightingUsage.SplitLighting : (int)StencilLightingUsage.RegularLighting);
|
|
m_deferredLightingMaterial[index].SetInt(HDShaderIDs._StencilCmp, (int)CompareFunction.Equal);
|
|
m_deferredLightingMaterial[index].SetInt(HDShaderIDs._SrcBlend, (int)BlendMode.One);
|
|
m_deferredLightingMaterial[index].SetInt(HDShaderIDs._DstBlend, (int)BlendMode.Zero);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
s_DefaultTexture2DArray = new Texture2DArray(1, 1, 1, TextureFormat.ARGB32, false);
|
|
s_DefaultTexture2DArray.SetPixels32(new Color32[1] { new Color32(128, 128, 128, 128) }, 0);
|
|
s_DefaultTexture2DArray.Apply();
|
|
|
|
s_DefaultTextureCube = new Cubemap(16, TextureFormat.ARGB32, false);
|
|
s_DefaultTextureCube.Apply();
|
|
|
|
InitShadowSystem(hdAsset, shadowSettings);
|
|
}
|
|
|
|
public void Cleanup()
|
|
{
|
|
DeinitShadowSystem();
|
|
|
|
CoreUtils.SafeRelease(s_DirectionalLightDatas);
|
|
CoreUtils.SafeRelease(s_LightDatas);
|
|
CoreUtils.SafeRelease(s_EnvLightDatas);
|
|
CoreUtils.SafeRelease(s_shadowDatas);
|
|
|
|
if (m_ReflectionProbeCache != null)
|
|
{
|
|
m_ReflectionProbeCache.Release();
|
|
m_ReflectionProbeCache = null;
|
|
}
|
|
if (m_ReflectionPlanarProbeCache != null)
|
|
{
|
|
m_ReflectionPlanarProbeCache.Release();
|
|
m_ReflectionPlanarProbeCache = null;
|
|
}
|
|
if (m_CookieTexArray != null)
|
|
{
|
|
m_CookieTexArray.Release();
|
|
m_CookieTexArray = null;
|
|
}
|
|
if (m_CubeCookieTexArray != null)
|
|
{
|
|
m_CubeCookieTexArray.Release();
|
|
m_CubeCookieTexArray = null;
|
|
}
|
|
|
|
ReleaseResolutionDependentBuffers();
|
|
|
|
CoreUtils.SafeRelease(s_AABBBoundsBuffer);
|
|
CoreUtils.SafeRelease(s_ConvexBoundsBuffer);
|
|
CoreUtils.SafeRelease(s_LightVolumeDataBuffer);
|
|
CoreUtils.SafeRelease(s_DispatchIndirectBuffer);
|
|
|
|
// enableClustered
|
|
CoreUtils.SafeRelease(s_GlobalLightListAtomic);
|
|
|
|
for (int outputSplitLighting = 0; outputSplitLighting < 2; ++outputSplitLighting)
|
|
{
|
|
for (int lightLoopTilePass = 0; lightLoopTilePass < 2; ++lightLoopTilePass)
|
|
{
|
|
for (int shadowMask = 0; shadowMask < 2; ++shadowMask)
|
|
{
|
|
for (int debugDisplay = 0; debugDisplay < 2; ++debugDisplay)
|
|
{
|
|
int index = GetDeferredLightingMaterialIndex(outputSplitLighting, lightLoopTilePass, shadowMask, debugDisplay);
|
|
CoreUtils.Destroy(m_deferredLightingMaterial[index]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
CoreUtils.Destroy(m_DebugViewTilesMaterial);
|
|
CoreUtils.Destroy(m_DebugShadowMapMaterial);
|
|
CoreUtils.Destroy(m_CubeToPanoMaterial);
|
|
}
|
|
|
|
public void NewFrame(FrameSettings frameSettings)
|
|
{
|
|
m_FrameSettings = frameSettings;
|
|
|
|
// Cluster
|
|
{
|
|
var clustPrepassSourceIdx = m_FrameSettings.lightLoopSettings.enableBigTilePrepass ? ClusterPrepassSource.BigTile : ClusterPrepassSource.None;
|
|
var clustDepthSourceIdx = ClusterDepthSource.NoDepth;
|
|
if (k_UseDepthBuffer)
|
|
{
|
|
if (m_FrameSettings.enableMSAA)
|
|
clustDepthSourceIdx = ClusterDepthSource.MSAA_Depth;
|
|
else
|
|
clustDepthSourceIdx = ClusterDepthSource.Depth;
|
|
}
|
|
var kernelName = s_ClusterKernelNames[(int)clustPrepassSourceIdx, (int)clustDepthSourceIdx];
|
|
|
|
s_GenListPerVoxelKernel = buildPerVoxelLightListShader.FindKernel(kernelName);
|
|
}
|
|
|
|
if (GetFeatureVariantsEnabled())
|
|
{
|
|
s_GenListPerTileKernel = buildPerTileLightListShader.FindKernel(m_FrameSettings.lightLoopSettings.enableBigTilePrepass ? "TileLightListGen_SrcBigTile_FeatureFlags" : "TileLightListGen_FeatureFlags");
|
|
}
|
|
else
|
|
{
|
|
s_GenListPerTileKernel = buildPerTileLightListShader.FindKernel(m_FrameSettings.lightLoopSettings.enableBigTilePrepass ? "TileLightListGen_SrcBigTile" : "TileLightListGen");
|
|
}
|
|
|
|
m_CookieTexArray.NewFrame();
|
|
m_CubeCookieTexArray.NewFrame();
|
|
m_ReflectionProbeCache.NewFrame();
|
|
m_ReflectionPlanarProbeCache.NewFrame();
|
|
}
|
|
|
|
public bool NeedResize()
|
|
{
|
|
return s_LightList == null || s_TileList == null || s_TileFeatureFlags == null ||
|
|
(s_BigTileLightList == null && m_FrameSettings.lightLoopSettings.enableBigTilePrepass) ||
|
|
(s_PerVoxelLightLists == null);
|
|
}
|
|
|
|
public void ReleaseResolutionDependentBuffers()
|
|
{
|
|
CoreUtils.SafeRelease(s_LightList);
|
|
CoreUtils.SafeRelease(s_TileList);
|
|
CoreUtils.SafeRelease(s_TileFeatureFlags);
|
|
|
|
// enableClustered
|
|
CoreUtils.SafeRelease(s_PerVoxelLightLists);
|
|
CoreUtils.SafeRelease(s_PerVoxelOffset);
|
|
CoreUtils.SafeRelease(s_PerTileLogBaseTweak);
|
|
|
|
// enableBigTilePrepass
|
|
CoreUtils.SafeRelease(s_BigTileLightList);
|
|
}
|
|
|
|
int NumLightIndicesPerClusteredTile()
|
|
{
|
|
return 8 * (1 << k_Log2NumClusters); // total footprint for all layers of the tile (measured in light index entries)
|
|
}
|
|
|
|
// TODO: Add proper stereo support
|
|
public void AllocResolutionDependentBuffers(int width, int height)
|
|
{
|
|
var nrTilesX = (width + LightDefinitions.s_TileSizeFptl - 1) / LightDefinitions.s_TileSizeFptl;
|
|
var nrTilesY = (height + LightDefinitions.s_TileSizeFptl - 1) / LightDefinitions.s_TileSizeFptl;
|
|
var nrTiles = nrTilesX * nrTilesY;
|
|
const int capacityUShortsPerTile = 32;
|
|
const int dwordsPerTile = (capacityUShortsPerTile + 1) >> 1; // room for 31 lights and a nrLights value.
|
|
|
|
s_LightList = new ComputeBuffer((int)LightCategory.Count * dwordsPerTile * nrTiles, sizeof(uint)); // enough list memory for a 4k x 4k display
|
|
s_TileList = new ComputeBuffer((int)LightDefinitions.s_NumFeatureVariants * nrTiles, sizeof(uint));
|
|
s_TileFeatureFlags = new ComputeBuffer(nrTilesX * nrTilesY, sizeof(uint));
|
|
|
|
// Cluster
|
|
{
|
|
var nrClustersX = (width + LightDefinitions.s_TileSizeClustered - 1) / LightDefinitions.s_TileSizeClustered;
|
|
var nrClustersY = (height + LightDefinitions.s_TileSizeClustered - 1) / LightDefinitions.s_TileSizeClustered;
|
|
var nrClusterTiles = nrClustersX * nrClustersY;
|
|
|
|
s_PerVoxelOffset = new ComputeBuffer((int)LightCategory.Count * (1 << k_Log2NumClusters) * nrClusterTiles, sizeof(uint));
|
|
s_PerVoxelLightLists = new ComputeBuffer(NumLightIndicesPerClusteredTile() * nrClusterTiles, sizeof(uint));
|
|
|
|
if (k_UseDepthBuffer)
|
|
{
|
|
s_PerTileLogBaseTweak = new ComputeBuffer(nrClusterTiles, sizeof(float));
|
|
}
|
|
}
|
|
|
|
if (m_FrameSettings.lightLoopSettings.enableBigTilePrepass)
|
|
{
|
|
var nrBigTilesX = (width + 63) / 64;
|
|
var nrBigTilesY = (height + 63) / 64;
|
|
var nrBigTiles = nrBigTilesX * nrBigTilesY;
|
|
s_BigTileLightList = new ComputeBuffer(LightDefinitions.s_MaxNrBigTileLightsPlusOne * nrBigTiles, sizeof(uint));
|
|
}
|
|
}
|
|
|
|
static Matrix4x4 WorldToCamera(Camera camera)
|
|
{
|
|
// camera.worldToCameraMatrix is RHS and Unity's transforms are LHS
|
|
// We need to flip it to work with transforms
|
|
return Matrix4x4.Scale(new Vector3(1, 1, -1)) * camera.worldToCameraMatrix;
|
|
}
|
|
|
|
// For light culling system, we need non oblique projection matrices
|
|
static Matrix4x4 CameraProjectionNonObliqueLHS(HDCamera camera)
|
|
{
|
|
// camera.projectionMatrix expect RHS data and Unity's transforms are LHS
|
|
// We need to flip it to work with transforms
|
|
return camera.nonObliqueProjMatrix * Matrix4x4.Scale(new Vector3(1, 1, -1));
|
|
}
|
|
|
|
public Vector3 GetLightColor(VisibleLight light)
|
|
{
|
|
return new Vector3(light.finalColor.r, light.finalColor.g, light.finalColor.b);
|
|
}
|
|
|
|
public bool GetDirectionalLightData(CommandBuffer cmd, ShadowSettings shadowSettings, GPULightType gpuLightType, VisibleLight light, HDAdditionalLightData additionalData, AdditionalShadowData additionalShadowData, int lightIndex)
|
|
{
|
|
var directionalLightData = new DirectionalLightData();
|
|
|
|
float diffuseDimmer = m_FrameSettings.diffuseGlobalDimmer * additionalData.lightDimmer;
|
|
float specularDimmer = m_FrameSettings.specularGlobalDimmer * additionalData.lightDimmer;
|
|
if (diffuseDimmer <= 0.0f && specularDimmer <= 0.0f)
|
|
return false;
|
|
|
|
// Light direction for directional is opposite to the forward direction
|
|
directionalLightData.forward = light.light.transform.forward;
|
|
// Rescale for cookies and windowing.
|
|
directionalLightData.right = light.light.transform.right * 2 / Mathf.Max(additionalData.shapeWidth, 0.001f);
|
|
directionalLightData.up = light.light.transform.up * 2 / Mathf.Max(additionalData.shapeHeight, 0.001f);
|
|
directionalLightData.positionWS = light.light.transform.position;
|
|
directionalLightData.color = GetLightColor(light);
|
|
|
|
// Caution: This is bad but if additionalData == HDUtils.s_DefaultHDAdditionalLightData it mean we are trying to promote legacy lights, which is the case for the preview for example, so we need to multiply by PI as legacy Unity do implicit divide by PI for direct intensity.
|
|
// So we expect that all light with additionalData == HDUtils.s_DefaultHDAdditionalLightData are currently the one from the preview, light in scene MUST have additionalData
|
|
directionalLightData.color *= (HDUtils.s_DefaultHDAdditionalLightData == additionalData) ? Mathf.PI : 1.0f;
|
|
|
|
directionalLightData.diffuseScale = additionalData.affectDiffuse ? diffuseDimmer : 0.0f;
|
|
directionalLightData.specularScale = additionalData.affectSpecular ? specularDimmer : 0.0f;
|
|
directionalLightData.shadowIndex = directionalLightData.cookieIndex = -1;
|
|
|
|
if (light.light.cookie != null)
|
|
{
|
|
directionalLightData.tileCookie = light.light.cookie.wrapMode == TextureWrapMode.Repeat ? 1 : 0;
|
|
directionalLightData.cookieIndex = m_CookieTexArray.FetchSlice(cmd, light.light.cookie);
|
|
}
|
|
// fix up shadow information
|
|
int shadowIdx;
|
|
if (m_ShadowIndices.TryGetValue(lightIndex, out shadowIdx))
|
|
{
|
|
directionalLightData.shadowIndex = shadowIdx;
|
|
m_CurrentSunLight = light.light;
|
|
m_CurrentSunLightShadowIndex = shadowIdx;
|
|
}
|
|
|
|
// TODO: Currently m_maxShadowDistance is based on shadow settings, but this value is define for a whole level. We should be able to change this value during gameplay
|
|
float scale;
|
|
float bias;
|
|
GetScaleAndBiasForLinearDistanceFade(m_maxShadowDistance, out scale, out bias);
|
|
directionalLightData.fadeDistanceScaleAndBias = new Vector2(scale, bias);
|
|
directionalLightData.shadowMaskSelector = Vector4.zero;
|
|
|
|
if (IsBakedShadowMaskLight(light.light))
|
|
{
|
|
directionalLightData.shadowMaskSelector[light.light.bakingOutput.occlusionMaskChannel] = 1.0f;
|
|
// TODO: make this option per light, not global
|
|
directionalLightData.dynamicShadowCasterOnly = QualitySettings.shadowmaskMode == ShadowmaskMode.Shadowmask ? 1 : 0;
|
|
}
|
|
else
|
|
{
|
|
// use -1 to say that we don't use shadow mask
|
|
directionalLightData.shadowMaskSelector.x = -1.0f;
|
|
directionalLightData.dynamicShadowCasterOnly = 0;
|
|
}
|
|
|
|
m_CurrentSunLight = m_CurrentSunLight == null ? light.light : m_CurrentSunLight;
|
|
|
|
m_lightList.directionalLights.Add(directionalLightData);
|
|
|
|
return true;
|
|
}
|
|
|
|
void GetScaleAndBiasForLinearDistanceFade(float fadeDistance, out float scale, out float bias)
|
|
{
|
|
// Fade with distance calculation is just a linear fade from 90% of fade distance to fade distance. 90% arbitrarily chosen but should work well enough.
|
|
float distanceFadeNear = 0.9f * fadeDistance;
|
|
scale = 1.0f / (fadeDistance - distanceFadeNear);
|
|
bias = - distanceFadeNear / (fadeDistance - distanceFadeNear);
|
|
}
|
|
|
|
float ComputeLinearDistanceFade(float distanceToCamera, float fadeDistance)
|
|
{
|
|
float scale;
|
|
float bias;
|
|
GetScaleAndBiasForLinearDistanceFade(fadeDistance, out scale, out bias);
|
|
|
|
return 1.0f - Mathf.Clamp01(distanceToCamera * scale + bias);
|
|
}
|
|
|
|
public bool GetLightData(CommandBuffer cmd, ShadowSettings shadowSettings, Camera camera, GPULightType gpuLightType,
|
|
VisibleLight light, HDAdditionalLightData additionalLightData, AdditionalShadowData additionalshadowData,
|
|
int lightIndex, ref Vector3 lightDimensions)
|
|
{
|
|
var lightData = new LightData();
|
|
|
|
lightData.lightType = gpuLightType;
|
|
|
|
lightData.positionWS = light.light.transform.position;
|
|
// Setting 0 for invSqrAttenuationRadius mean we have no range attenuation, but still have inverse square attenuation.
|
|
bool applyRangeAttenuation = additionalLightData.applyRangeAttenuation && (gpuLightType != GPULightType.ProjectorBox);
|
|
lightData.invSqrAttenuationRadius = applyRangeAttenuation ? 1.0f / (light.range * light.range) : 0.0f;
|
|
lightData.color = GetLightColor(light);
|
|
|
|
lightData.forward = light.light.transform.forward; // Note: Light direction is oriented backward (-Z)
|
|
lightData.up = light.light.transform.up;
|
|
lightData.right = light.light.transform.right;
|
|
|
|
lightDimensions.x = additionalLightData.shapeWidth;
|
|
lightDimensions.y = additionalLightData.shapeHeight;
|
|
lightDimensions.z = light.range;
|
|
|
|
if (lightData.lightType == GPULightType.ProjectorBox)
|
|
{
|
|
lightData.size.x = light.range;
|
|
|
|
// Rescale for cookies and windowing.
|
|
lightData.right *= 2.0f / Mathf.Max(additionalLightData.shapeWidth, 0.001f);
|
|
lightData.up *= 2.0f / Mathf.Max(additionalLightData.shapeHeight, 0.001f);
|
|
}
|
|
else if (lightData.lightType == GPULightType.ProjectorPyramid)
|
|
{
|
|
// Get width and height for the current frustum
|
|
var spotAngle = light.spotAngle;
|
|
|
|
float frustumWidth, frustumHeight;
|
|
|
|
if (additionalLightData.aspectRatio >= 1.0f)
|
|
{
|
|
frustumHeight = 2.0f * Mathf.Tan(spotAngle * 0.5f * Mathf.Deg2Rad);
|
|
frustumWidth = frustumHeight * additionalLightData.aspectRatio;
|
|
}
|
|
else
|
|
{
|
|
frustumWidth = 2.0f * Mathf.Tan(spotAngle * 0.5f * Mathf.Deg2Rad);
|
|
frustumHeight = frustumWidth / additionalLightData.aspectRatio;
|
|
}
|
|
|
|
// Adjust based on the new parametrization.
|
|
lightDimensions.x = frustumWidth;
|
|
lightDimensions.y = frustumHeight;
|
|
|
|
// Rescale for cookies and windowing.
|
|
lightData.right *= 2.0f / frustumWidth;
|
|
lightData.up *= 2.0f / frustumHeight;
|
|
}
|
|
|
|
if (lightData.lightType == GPULightType.Spot)
|
|
{
|
|
var spotAngle = light.spotAngle;
|
|
|
|
var innerConePercent = additionalLightData.GetInnerSpotPercent01();
|
|
var cosSpotOuterHalfAngle = Mathf.Clamp(Mathf.Cos(spotAngle * 0.5f * Mathf.Deg2Rad), 0.0f, 1.0f);
|
|
var sinSpotOuterHalfAngle = Mathf.Sqrt(1.0f - cosSpotOuterHalfAngle * cosSpotOuterHalfAngle);
|
|
var cosSpotInnerHalfAngle = Mathf.Clamp(Mathf.Cos(spotAngle * 0.5f * innerConePercent * Mathf.Deg2Rad), 0.0f, 1.0f); // inner cone
|
|
|
|
var val = Mathf.Max(0.001f, (cosSpotInnerHalfAngle - cosSpotOuterHalfAngle));
|
|
lightData.angleScale = 1.0f / val;
|
|
lightData.angleOffset = -cosSpotOuterHalfAngle * lightData.angleScale;
|
|
|
|
// Rescale for cookies and windowing.
|
|
float cotOuterHalfAngle = cosSpotOuterHalfAngle / sinSpotOuterHalfAngle;
|
|
lightData.up *= cotOuterHalfAngle;
|
|
lightData.right *= cotOuterHalfAngle;
|
|
}
|
|
else
|
|
{
|
|
// These are the neutral values allowing GetAngleAnttenuation in shader code to return 1.0
|
|
lightData.angleScale = 0.0f;
|
|
lightData.angleOffset = 1.0f;
|
|
}
|
|
|
|
if (lightData.lightType == GPULightType.Rectangle || lightData.lightType == GPULightType.Line)
|
|
{
|
|
lightData.size = new Vector2(additionalLightData.shapeWidth, additionalLightData.shapeHeight);
|
|
}
|
|
|
|
float distanceToCamera = (lightData.positionWS - camera.transform.position).magnitude;
|
|
float distanceFade = ComputeLinearDistanceFade(distanceToCamera, additionalLightData.fadeDistance);
|
|
float lightScale = additionalLightData.lightDimmer * distanceFade;
|
|
|
|
lightData.diffuseScale = additionalLightData.affectDiffuse ? lightScale * m_FrameSettings.diffuseGlobalDimmer : 0.0f;
|
|
lightData.specularScale = additionalLightData.affectSpecular ? lightScale * m_FrameSettings.specularGlobalDimmer : 0.0f;
|
|
|
|
if (lightData.diffuseScale <= 0.0f && lightData.specularScale <= 0.0f)
|
|
return false;
|
|
|
|
lightData.cookieIndex = -1;
|
|
lightData.shadowIndex = -1;
|
|
|
|
if (light.light.cookie != null)
|
|
{
|
|
// TODO: add texture atlas support for cookie textures.
|
|
switch (light.lightType)
|
|
{
|
|
case LightType.Spot:
|
|
lightData.cookieIndex = m_CookieTexArray.FetchSlice(cmd, light.light.cookie);
|
|
break;
|
|
case LightType.Point:
|
|
lightData.cookieIndex = m_CubeCookieTexArray.FetchSlice(cmd, light.light.cookie);
|
|
break;
|
|
}
|
|
}
|
|
else if (light.lightType == LightType.Spot && additionalLightData.spotLightShape != SpotLightShape.Cone)
|
|
{
|
|
// Projectors lights must always have a cookie texture.
|
|
// As long as the cache is a texture array and not an atlas, the 4x4 white texture will be rescaled to 128
|
|
lightData.cookieIndex = m_CookieTexArray.FetchSlice(cmd, Texture2D.whiteTexture);
|
|
}
|
|
|
|
if (additionalshadowData)
|
|
{
|
|
float shadowDistanceFade = ComputeLinearDistanceFade(distanceToCamera, additionalshadowData.shadowFadeDistance);
|
|
lightData.shadowDimmer = additionalshadowData.shadowDimmer * shadowDistanceFade;
|
|
}
|
|
else
|
|
{
|
|
lightData.shadowDimmer = 1.0f;
|
|
}
|
|
|
|
// fix up shadow information
|
|
int shadowIdx;
|
|
if (m_ShadowIndices.TryGetValue(lightIndex, out shadowIdx))
|
|
{
|
|
lightData.shadowIndex = shadowIdx;
|
|
}
|
|
|
|
// Value of max smoothness is from artists point of view, need to convert from perceptual smoothness to roughness
|
|
lightData.minRoughness = (1.0f - additionalLightData.maxSmoothness) * (1.0f - additionalLightData.maxSmoothness);
|
|
|
|
lightData.shadowMaskSelector = Vector4.zero;
|
|
|
|
if (IsBakedShadowMaskLight(light.light))
|
|
{
|
|
lightData.shadowMaskSelector[light.light.bakingOutput.occlusionMaskChannel] = 1.0f;
|
|
// TODO: make this option per light, not global
|
|
lightData.dynamicShadowCasterOnly = QualitySettings.shadowmaskMode == ShadowmaskMode.Shadowmask ? 1 : 0;
|
|
}
|
|
else
|
|
{
|
|
// use -1 to say that we don't use shadow mask
|
|
lightData.shadowMaskSelector.x = -1.0f;
|
|
lightData.dynamicShadowCasterOnly = 0;
|
|
}
|
|
|
|
m_lightList.lights.Add(lightData);
|
|
|
|
return true;
|
|
}
|
|
|
|
// TODO: we should be able to do this calculation only with LightData without VisibleLight light, but for now pass both
|
|
public void GetLightVolumeDataAndBound(LightCategory lightCategory, GPULightType gpuLightType, LightVolumeType lightVolumeType,
|
|
VisibleLight light, LightData lightData, Vector3 lightDimensions, Matrix4x4 worldToView)
|
|
{
|
|
// Then Culling side
|
|
var range = lightDimensions.z;
|
|
var lightToWorld = light.localToWorld;
|
|
Vector3 positionWS = lightData.positionWS;
|
|
Vector3 positionVS = worldToView.MultiplyPoint(positionWS);
|
|
|
|
Matrix4x4 lightToView = worldToView * lightToWorld;
|
|
Vector3 xAxisVS = lightToView.GetColumn(0);
|
|
Vector3 yAxisVS = lightToView.GetColumn(1);
|
|
Vector3 zAxisVS = lightToView.GetColumn(2);
|
|
|
|
// Fill bounds
|
|
var bound = new SFiniteLightBound();
|
|
var lightVolumeData = new LightVolumeData();
|
|
|
|
lightVolumeData.lightCategory = (uint)lightCategory;
|
|
lightVolumeData.lightVolume = (uint)lightVolumeType;
|
|
|
|
if (gpuLightType == GPULightType.Spot || gpuLightType == GPULightType.ProjectorPyramid)
|
|
{
|
|
Vector3 lightDir = lightToWorld.GetColumn(2);
|
|
|
|
// represents a left hand coordinate system in world space since det(worldToView)<0
|
|
Vector3 vx = xAxisVS;
|
|
Vector3 vy = yAxisVS;
|
|
Vector3 vz = zAxisVS;
|
|
|
|
const float pi = 3.1415926535897932384626433832795f;
|
|
const float degToRad = (float)(pi / 180.0);
|
|
|
|
var sa = light.light.spotAngle;
|
|
var cs = Mathf.Cos(0.5f * sa * degToRad);
|
|
var si = Mathf.Sin(0.5f * sa * degToRad);
|
|
|
|
if (gpuLightType == GPULightType.ProjectorPyramid)
|
|
{
|
|
Vector3 lightPosToProjWindowCorner = (0.5f * lightDimensions.x) * vx + (0.5f * lightDimensions.y) * vy + 1.0f * vz;
|
|
cs = Vector3.Dot(vz, Vector3.Normalize(lightPosToProjWindowCorner));
|
|
si = Mathf.Sqrt(1.0f - cs * cs);
|
|
}
|
|
|
|
const float FltMax = 3.402823466e+38F;
|
|
var ta = cs > 0.0f ? (si / cs) : FltMax;
|
|
var cota = si > 0.0f ? (cs / si) : FltMax;
|
|
|
|
//const float cotasa = l.GetCotanHalfSpotAngle();
|
|
|
|
// apply nonuniform scale to OBB of spot light
|
|
var squeeze = true;//sa < 0.7f * 90.0f; // arb heuristic
|
|
var fS = squeeze ? ta : si;
|
|
bound.center = worldToView.MultiplyPoint(positionWS + ((0.5f * range) * lightDir)); // use mid point of the spot as the center of the bounding volume for building screen-space AABB for tiled lighting.
|
|
|
|
// scale axis to match box or base of pyramid
|
|
bound.boxAxisX = (fS * range) * vx;
|
|
bound.boxAxisY = (fS * range) * vy;
|
|
bound.boxAxisZ = (0.5f * range) * vz;
|
|
|
|
// generate bounding sphere radius
|
|
var fAltDx = si;
|
|
var fAltDy = cs;
|
|
fAltDy = fAltDy - 0.5f;
|
|
//if(fAltDy<0) fAltDy=-fAltDy;
|
|
|
|
fAltDx *= range; fAltDy *= range;
|
|
|
|
// Handle case of pyramid with this select (currently unused)
|
|
var altDist = Mathf.Sqrt(fAltDy * fAltDy + (true ? 1.0f : 2.0f) * fAltDx * fAltDx);
|
|
bound.radius = altDist > (0.5f * range) ? altDist : (0.5f * range); // will always pick fAltDist
|
|
bound.scaleXY = squeeze ? new Vector2(0.01f, 0.01f) : new Vector2(1.0f, 1.0f);
|
|
|
|
lightVolumeData.lightAxisX = vx;
|
|
lightVolumeData.lightAxisY = vy;
|
|
lightVolumeData.lightAxisZ = vz;
|
|
lightVolumeData.lightPos = positionVS;
|
|
lightVolumeData.radiusSq = range * range;
|
|
lightVolumeData.cotan = cota;
|
|
lightVolumeData.featureFlags = (uint)LightFeatureFlags.Punctual;
|
|
}
|
|
else if (gpuLightType == GPULightType.Point)
|
|
{
|
|
Vector3 vx = xAxisVS;
|
|
Vector3 vy = yAxisVS;
|
|
Vector3 vz = zAxisVS;
|
|
|
|
bound.center = positionVS;
|
|
bound.boxAxisX = vx * range;
|
|
bound.boxAxisY = vy * range;
|
|
bound.boxAxisZ = vz * range;
|
|
bound.scaleXY.Set(1.0f, 1.0f);
|
|
bound.radius = range;
|
|
|
|
// fill up ldata
|
|
lightVolumeData.lightAxisX = vx;
|
|
lightVolumeData.lightAxisY = vy;
|
|
lightVolumeData.lightAxisZ = vz;
|
|
lightVolumeData.lightPos = bound.center;
|
|
lightVolumeData.radiusSq = range * range;
|
|
lightVolumeData.featureFlags = (uint)LightFeatureFlags.Punctual;
|
|
}
|
|
else if (gpuLightType == GPULightType.Line)
|
|
{
|
|
Vector3 dimensions = new Vector3(lightDimensions.x + 2 * range, 2 * range, 2 * range); // Omni-directional
|
|
Vector3 extents = 0.5f * dimensions;
|
|
|
|
bound.center = positionVS;
|
|
bound.boxAxisX = extents.x * xAxisVS;
|
|
bound.boxAxisY = extents.y * yAxisVS;
|
|
bound.boxAxisZ = extents.z * zAxisVS;
|
|
bound.scaleXY.Set(1.0f, 1.0f);
|
|
bound.radius = extents.magnitude;
|
|
|
|
lightVolumeData.lightPos = positionVS;
|
|
lightVolumeData.lightAxisX = xAxisVS;
|
|
lightVolumeData.lightAxisY = yAxisVS;
|
|
lightVolumeData.lightAxisZ = zAxisVS;
|
|
lightVolumeData.boxInnerDist = new Vector3(lightDimensions.x, 0, 0);
|
|
lightVolumeData.boxInvRange.Set(1.0f / range, 1.0f / range, 1.0f / range);
|
|
lightVolumeData.featureFlags = (uint)LightFeatureFlags.Area;
|
|
}
|
|
else if (gpuLightType == GPULightType.Rectangle)
|
|
{
|
|
Vector3 dimensions = new Vector3(lightDimensions.x + 2 * range, lightDimensions.y + 2 * range, range); // One-sided
|
|
Vector3 extents = 0.5f * dimensions;
|
|
Vector3 centerVS = positionVS + extents.z * zAxisVS;
|
|
|
|
bound.center = centerVS;
|
|
bound.boxAxisX = extents.x * xAxisVS;
|
|
bound.boxAxisY = extents.y * yAxisVS;
|
|
bound.boxAxisZ = extents.z * zAxisVS;
|
|
bound.scaleXY.Set(1.0f, 1.0f);
|
|
bound.radius = extents.magnitude;
|
|
|
|
lightVolumeData.lightPos = centerVS;
|
|
lightVolumeData.lightAxisX = xAxisVS;
|
|
lightVolumeData.lightAxisY = yAxisVS;
|
|
lightVolumeData.lightAxisZ = zAxisVS;
|
|
lightVolumeData.boxInnerDist = extents;
|
|
lightVolumeData.boxInvRange.Set(Mathf.Infinity, Mathf.Infinity, Mathf.Infinity);
|
|
lightVolumeData.featureFlags = (uint)LightFeatureFlags.Area;
|
|
}
|
|
else if (gpuLightType == GPULightType.ProjectorBox)
|
|
{
|
|
Vector3 dimensions = new Vector3(lightDimensions.x, lightDimensions.y, range); // One-sided
|
|
Vector3 extents = 0.5f * dimensions;
|
|
Vector3 centerVS = positionVS + extents.z * zAxisVS;
|
|
|
|
bound.center = centerVS;
|
|
bound.boxAxisX = extents.x * xAxisVS;
|
|
bound.boxAxisY = extents.y * yAxisVS;
|
|
bound.boxAxisZ = extents.z * zAxisVS;
|
|
bound.radius = extents.magnitude;
|
|
bound.scaleXY.Set(1.0f, 1.0f);
|
|
|
|
lightVolumeData.lightPos = centerVS;
|
|
lightVolumeData.lightAxisX = xAxisVS;
|
|
lightVolumeData.lightAxisY = yAxisVS;
|
|
lightVolumeData.lightAxisZ = zAxisVS;
|
|
lightVolumeData.boxInnerDist = extents;
|
|
lightVolumeData.boxInvRange.Set(Mathf.Infinity, Mathf.Infinity, Mathf.Infinity);
|
|
lightVolumeData.featureFlags = (uint)LightFeatureFlags.Punctual;
|
|
}
|
|
else
|
|
{
|
|
Debug.Assert(false, "TODO: encountered an unknown GPULightType.");
|
|
}
|
|
|
|
m_lightList.bounds.Add(bound);
|
|
m_lightList.lightVolumes.Add(lightVolumeData);
|
|
}
|
|
|
|
|
|
public bool GetEnvLightData(CommandBuffer cmd, Camera camera, ProbeWrapper probe)
|
|
{
|
|
// For now we won't display real time probe when rendering one.
|
|
// TODO: We may want to display last frame result but in this case we need to be careful not to update the atlas before all realtime probes are rendered (for frame coherency).
|
|
// Unfortunately we don't have this information at the moment.
|
|
if (probe.mode == ReflectionProbeMode.Realtime && camera.cameraType == CameraType.Reflection)
|
|
return false;
|
|
|
|
var capturePosition = Vector3.zero;
|
|
var influenceToWorld = probe.influenceToWorld;
|
|
|
|
var sampleDirectionDiscardWS = Vector3.zero;
|
|
|
|
// 31 bits index, 1 bit cache type
|
|
var envIndex = -1;
|
|
if (probe.planarReflectionProbe != null)
|
|
{
|
|
var fetchIndex = m_ReflectionPlanarProbeCache.FetchSlice(cmd, probe.texture);
|
|
envIndex = (fetchIndex << 1) | (int)EnvCacheType.Texture2D;
|
|
|
|
float nearClipPlane, farClipPlane, aspect, fov;
|
|
Color backgroundColor;
|
|
CameraClearFlags clearFlags;
|
|
Quaternion captureRotation;
|
|
Matrix4x4 worldToCamera, projection;
|
|
|
|
ReflectionSystem.CalculateCaptureCameraProperties(
|
|
probe.planarReflectionProbe,
|
|
out nearClipPlane, out farClipPlane,
|
|
out aspect, out fov, out clearFlags, out backgroundColor,
|
|
out worldToCamera, out projection, out capturePosition, out captureRotation,
|
|
camera);
|
|
|
|
var gpuProj = GL.GetGPUProjectionMatrix(projection, true); // Had to change this from 'false'
|
|
var gpuView = worldToCamera;
|
|
|
|
// We transform it to object space by translating the capturePosition
|
|
var vp = gpuProj * gpuView * Matrix4x4.Translate(capturePosition);
|
|
m_Env2DCaptureVP[fetchIndex] = vp;
|
|
sampleDirectionDiscardWS = captureRotation * Vector3.forward;
|
|
}
|
|
else if (probe.reflectionProbe != null)
|
|
{
|
|
envIndex = m_ReflectionProbeCache.FetchSlice(cmd, probe.texture);
|
|
envIndex = envIndex << 1 | (int)EnvCacheType.Cubemap;
|
|
capturePosition = (Vector3)influenceToWorld.GetColumn(3) - probe.reflectionProbe.center;
|
|
}
|
|
// -1 means that the texture is not ready yet (ie not convolved/compressed yet)
|
|
if (envIndex == -1)
|
|
return false;
|
|
|
|
// Build light data
|
|
var envLightData = new EnvLightData();
|
|
|
|
|
|
envLightData.influenceShapeType = probe.influenceShapeType;
|
|
envLightData.dimmer = probe.dimmer;
|
|
envLightData.influenceExtents = probe.influenceExtents;
|
|
envLightData.blendNormalDistancePositive = probe.blendNormalDistancePositive;
|
|
envLightData.blendNormalDistanceNegative = probe.blendNormalDistanceNegative;
|
|
envLightData.blendDistancePositive = probe.blendDistancePositive;
|
|
envLightData.blendDistanceNegative = probe.blendDistanceNegative;
|
|
envLightData.boxSideFadePositive = probe.boxSideFadePositive;
|
|
envLightData.boxSideFadeNegative = probe.boxSideFadeNegative;
|
|
envLightData.sampleDirectionDiscardWS = sampleDirectionDiscardWS;
|
|
|
|
envLightData.influenceRight = influenceToWorld.GetColumn(0).normalized;
|
|
envLightData.influenceUp = influenceToWorld.GetColumn(1).normalized;
|
|
envLightData.influenceForward = influenceToWorld.GetColumn(2).normalized;
|
|
envLightData.capturePositionWS = capturePosition;
|
|
envLightData.influencePositionWS = influenceToWorld.GetColumn(3);
|
|
|
|
envLightData.envIndex = envIndex;
|
|
|
|
// Proxy data
|
|
var proxyToWorld = probe.proxyToWorld;
|
|
envLightData.proxyExtents = probe.proxyExtents;
|
|
envLightData.minProjectionDistance = probe.infiniteProjection ? 65504f : 0;
|
|
envLightData.proxyRight = proxyToWorld.GetColumn(0).normalized;
|
|
envLightData.proxyUp = proxyToWorld.GetColumn(1).normalized;
|
|
envLightData.proxyForward = proxyToWorld.GetColumn(2).normalized;
|
|
envLightData.proxyPositionWS = proxyToWorld.GetColumn(3);
|
|
|
|
m_lightList.envLights.Add(envLightData);
|
|
|
|
return true;
|
|
}
|
|
|
|
public void GetEnvLightVolumeDataAndBound(ProbeWrapper probe, LightVolumeType lightVolumeType, Matrix4x4 worldToView)
|
|
{
|
|
var bound = new SFiniteLightBound();
|
|
var lightVolumeData = new LightVolumeData();
|
|
|
|
// C is reflection volume center in world space (NOT same as cube map capture point)
|
|
var influenceExtents = probe.influenceExtents; // 0.5f * Vector3.Max(-boxSizes[p], boxSizes[p]);
|
|
|
|
var influenceToWorld = probe.influenceToWorld;
|
|
|
|
// transform to camera space (becomes a left hand coordinate frame in Unity since Determinant(worldToView)<0)
|
|
var influenceRightVS = worldToView.MultiplyVector(influenceToWorld.GetColumn(0).normalized);
|
|
var influenceUpVS = worldToView.MultiplyVector(influenceToWorld.GetColumn(1).normalized);
|
|
var influenceForwardVS = worldToView.MultiplyVector(influenceToWorld.GetColumn(2).normalized);
|
|
var influencePositionVS = worldToView.MultiplyPoint(influenceToWorld.GetColumn(3));
|
|
|
|
lightVolumeData.lightCategory = (uint)LightCategory.Env;
|
|
lightVolumeData.lightVolume = (uint)lightVolumeType;
|
|
lightVolumeData.featureFlags = (uint)LightFeatureFlags.Env;
|
|
|
|
switch (lightVolumeType)
|
|
{
|
|
case LightVolumeType.Sphere:
|
|
{
|
|
lightVolumeData.lightPos = influencePositionVS;
|
|
lightVolumeData.radiusSq = influenceExtents.x * influenceExtents.x;
|
|
lightVolumeData.lightAxisX = influenceRightVS;
|
|
lightVolumeData.lightAxisY = influenceUpVS;
|
|
lightVolumeData.lightAxisZ = influenceForwardVS;
|
|
|
|
bound.center = influencePositionVS;
|
|
bound.boxAxisX = influenceRightVS * influenceExtents.x;
|
|
bound.boxAxisY = influenceUpVS * influenceExtents.x;
|
|
bound.boxAxisZ = influenceForwardVS * influenceExtents.x;
|
|
bound.scaleXY.Set(1.0f, 1.0f);
|
|
bound.radius = influenceExtents.x;
|
|
break;
|
|
}
|
|
case LightVolumeType.Box:
|
|
{
|
|
bound.center = influencePositionVS;
|
|
bound.boxAxisX = influenceExtents.x * influenceRightVS;
|
|
bound.boxAxisY = influenceExtents.y * influenceUpVS;
|
|
bound.boxAxisZ = influenceExtents.z * influenceForwardVS;
|
|
bound.scaleXY.Set(1.0f, 1.0f);
|
|
bound.radius = influenceExtents.magnitude;
|
|
|
|
// The culling system culls pixels that are further
|
|
// than a threshold to the box influence extents.
|
|
// So we use an arbitrary threshold here (k_BoxCullingExtentOffset)
|
|
lightVolumeData.lightPos = influencePositionVS;
|
|
lightVolumeData.lightAxisX = influenceRightVS;
|
|
lightVolumeData.lightAxisY = influenceUpVS;
|
|
lightVolumeData.lightAxisZ = influenceForwardVS;
|
|
lightVolumeData.boxInnerDist = influenceExtents - k_BoxCullingExtentThreshold;
|
|
lightVolumeData.boxInvRange.Set(1.0f / k_BoxCullingExtentThreshold.x, 1.0f / k_BoxCullingExtentThreshold.y, 1.0f / k_BoxCullingExtentThreshold.z);
|
|
break;
|
|
}
|
|
}
|
|
|
|
m_lightList.bounds.Add(bound);
|
|
m_lightList.lightVolumes.Add(lightVolumeData);
|
|
}
|
|
|
|
public int GetCurrentShadowCount()
|
|
{
|
|
return m_ShadowRequests.Count;
|
|
}
|
|
|
|
public int GetShadowAtlasCount()
|
|
{
|
|
return (m_ShadowMgr == null) ? 0 : (int)m_ShadowMgr.GetShadowMapCount();
|
|
}
|
|
|
|
public void UpdateCullingParameters(ref ScriptableCullingParameters cullingParams)
|
|
{
|
|
m_ShadowMgr.UpdateCullingParameters( ref cullingParams );
|
|
}
|
|
|
|
public bool IsBakedShadowMaskLight(Light light)
|
|
{
|
|
return light.bakingOutput.lightmapBakeType == LightmapBakeType.Mixed &&
|
|
light.bakingOutput.mixedLightingMode == MixedLightingMode.Shadowmask &&
|
|
light.bakingOutput.occlusionMaskChannel != -1; // We need to have an occlusion mask channel assign, else we have no shadow mask
|
|
}
|
|
|
|
// Return true if BakedShadowMask are enabled
|
|
public bool PrepareLightsForGPU(CommandBuffer cmd, ShadowSettings shadowSettings, CullResults cullResults, ReflectionProbeCullResults reflectionProbeCullResults, Camera camera)
|
|
{
|
|
using (new ProfilingSample(cmd, "Prepare Lights For GPU"))
|
|
{
|
|
// If any light require it, we need to enabled bake shadow mask feature
|
|
m_enableBakeShadowMask = false;
|
|
|
|
m_lightList.Clear();
|
|
|
|
Vector3 camPosWS = camera.transform.position;
|
|
|
|
// We need to properly reset this here otherwise if we go from 1 light to no visible light we would keep the old reference active.
|
|
m_CurrentSunLight = null;
|
|
m_CurrentSunLightShadowIndex = -1;
|
|
|
|
// Note: Light with null intensity/Color are culled by the C++, no need to test it here
|
|
if (cullResults.visibleLights.Count != 0 || cullResults.visibleReflectionProbes.Count != 0)
|
|
{
|
|
// 0. deal with shadows
|
|
{
|
|
m_FrameId.frameCount++;
|
|
// get the indices for all lights that want to have shadows
|
|
m_ShadowRequests.Clear();
|
|
m_ShadowRequests.Capacity = cullResults.visibleLights.Count;
|
|
int lcnt = cullResults.visibleLights.Count;
|
|
for (int i = 0; i < lcnt; ++i)
|
|
{
|
|
VisibleLight vl = cullResults.visibleLights[i];
|
|
if (vl.light.shadows == LightShadows.None)
|
|
continue;
|
|
|
|
AdditionalShadowData asd = vl.light.GetComponent<AdditionalShadowData>();
|
|
if (asd != null && asd.shadowDimmer > 0.0f)
|
|
m_ShadowRequests.Add(i);
|
|
}
|
|
// pass this list to a routine that assigns shadows based on some heuristic
|
|
uint shadowRequestCount = (uint)m_ShadowRequests.Count;
|
|
//TODO: Do not call ToArray here to avoid GC, refactor API
|
|
int[] shadowRequests = m_ShadowRequests.ToArray();
|
|
int[] shadowDataIndices;
|
|
m_ShadowMgr.ProcessShadowRequests(m_FrameId, cullResults, camera, ShaderConfig.s_CameraRelativeRendering != 0, cullResults.visibleLights,
|
|
ref shadowRequestCount, shadowRequests, out shadowDataIndices);
|
|
|
|
// update the visibleLights with the shadow information
|
|
m_ShadowIndices.Clear();
|
|
for (uint i = 0; i < shadowRequestCount; i++)
|
|
{
|
|
m_ShadowIndices.Add(shadowRequests[i], shadowDataIndices[i]);
|
|
}
|
|
}
|
|
|
|
// 1. Count the number of lights and sort all lights by category, type and volume - This is required for the fptl/cluster shader code
|
|
// If we reach maximum of lights available on screen, then we discard the light.
|
|
// Lights are processed in order, so we don't discards light based on their importance but based on their ordering in visible lights list.
|
|
int directionalLightcount = 0;
|
|
int punctualLightcount = 0;
|
|
int areaLightCount = 0;
|
|
|
|
int lightCount = Math.Min(cullResults.visibleLights.Count, k_MaxLightsOnScreen);
|
|
var sortKeys = new uint[lightCount];
|
|
int sortCount = 0;
|
|
|
|
for (int lightIndex = 0, numLights = cullResults.visibleLights.Count; (lightIndex < numLights) && (sortCount < lightCount); ++lightIndex)
|
|
{
|
|
var light = cullResults.visibleLights[lightIndex];
|
|
|
|
// Light should always have additional data, however preview light right don't have, so we must handle the case by assigning HDUtils.s_DefaultHDAdditionalLightData
|
|
var additionalData = GetHDAdditionalLightData(light);
|
|
|
|
LightCategory lightCategory = LightCategory.Count;
|
|
GPULightType gpuLightType = GPULightType.Point;
|
|
LightVolumeType lightVolumeType = LightVolumeType.Count;
|
|
|
|
if (additionalData.lightTypeExtent == LightTypeExtent.Punctual)
|
|
{
|
|
lightCategory = LightCategory.Punctual;
|
|
|
|
switch (light.lightType)
|
|
{
|
|
case LightType.Spot:
|
|
if (punctualLightcount >= k_MaxPunctualLightsOnScreen)
|
|
continue;
|
|
switch (additionalData.spotLightShape)
|
|
{
|
|
case SpotLightShape.Cone:
|
|
gpuLightType = GPULightType.Spot;
|
|
lightVolumeType = LightVolumeType.Cone;
|
|
break;
|
|
case SpotLightShape.Pyramid:
|
|
gpuLightType = GPULightType.ProjectorPyramid;
|
|
lightVolumeType = LightVolumeType.Cone;
|
|
break;
|
|
case SpotLightShape.Box:
|
|
gpuLightType = GPULightType.ProjectorBox;
|
|
lightVolumeType = LightVolumeType.Box;
|
|
break;
|
|
default:
|
|
Debug.Assert(false, "Encountered an unknown SpotLightShape.");
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case LightType.Directional:
|
|
if (directionalLightcount >= k_MaxDirectionalLightsOnScreen)
|
|
continue;
|
|
gpuLightType = GPULightType.Directional;
|
|
// No need to add volume, always visible
|
|
lightVolumeType = LightVolumeType.Count; // Count is none
|
|
break;
|
|
|
|
case LightType.Point:
|
|
if (punctualLightcount >= k_MaxPunctualLightsOnScreen)
|
|
continue;
|
|
gpuLightType = GPULightType.Point;
|
|
lightVolumeType = LightVolumeType.Sphere;
|
|
break;
|
|
|
|
default:
|
|
Debug.Assert(false, "Encountered an unknown LightType.");
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lightCategory = LightCategory.Area;
|
|
|
|
switch (additionalData.lightTypeExtent)
|
|
{
|
|
case LightTypeExtent.Rectangle:
|
|
if (areaLightCount >= k_MaxAreaLightsOnScreen)
|
|
continue;
|
|
gpuLightType = GPULightType.Rectangle;
|
|
lightVolumeType = LightVolumeType.Box;
|
|
break;
|
|
|
|
case LightTypeExtent.Line:
|
|
if (areaLightCount >= k_MaxAreaLightsOnScreen)
|
|
continue;
|
|
gpuLightType = GPULightType.Line;
|
|
lightVolumeType = LightVolumeType.Box;
|
|
break;
|
|
|
|
default:
|
|
Debug.Assert(false, "Encountered an unknown LightType.");
|
|
break;
|
|
}
|
|
}
|
|
|
|
uint shadow = m_ShadowIndices.ContainsKey(lightIndex) ? 1u : 0;
|
|
// 5 bit (0x1F) light category, 5 bit (0x1F) GPULightType, 5 bit (0x1F) lightVolume, 1 bit for shadow casting, 16 bit index
|
|
sortKeys[sortCount++] = (uint)lightCategory << 27 | (uint)gpuLightType << 22 | (uint)lightVolumeType << 17 | shadow << 16 | (uint)lightIndex;
|
|
}
|
|
|
|
CoreUtils.QuickSort(sortKeys, 0, sortCount - 1); // Call our own quicksort instead of Array.Sort(sortKeys, 0, sortCount) so we don't allocate memory (note the SortCount-1 that is different from original call).
|
|
|
|
// TODO: Refactor shadow management
|
|
// The good way of managing shadow:
|
|
// Here we sort everyone and we decide which light is important or not (this is the responsibility of the lightloop)
|
|
// we allocate shadow slot based on maximum shadow allowed on screen and attribute slot by bigger solid angle
|
|
// THEN we ask to the ShadowRender to render the shadow, not the reverse as it is today (i.e render shadow than expect they
|
|
// will be use...)
|
|
// The lightLoop is in charge, not the shadow pass.
|
|
// For now we will still apply the maximum of shadow here but we don't apply the sorting by priority + slot allocation yet
|
|
|
|
// 2. Go through all lights, convert them to GPU format.
|
|
// Create simultaneously data for culling (LigthVolumeData and rendering)
|
|
var worldToView = WorldToCamera(camera);
|
|
|
|
for (int sortIndex = 0; sortIndex < sortCount; ++sortIndex)
|
|
{
|
|
// In 1. we have already classify and sorted the light, we need to use this sorted order here
|
|
uint sortKey = sortKeys[sortIndex];
|
|
LightCategory lightCategory = (LightCategory)((sortKey >> 27) & 0x1F);
|
|
GPULightType gpuLightType = (GPULightType)((sortKey >> 22) & 0x1F);
|
|
LightVolumeType lightVolumeType = (LightVolumeType)((sortKey >> 17) & 0x1F);
|
|
int lightIndex = (int)(sortKey & 0xFFFF);
|
|
|
|
var light = cullResults.visibleLights[lightIndex];
|
|
|
|
m_enableBakeShadowMask = m_enableBakeShadowMask || IsBakedShadowMaskLight(light.light);
|
|
|
|
// Light should always have additional data, however preview light right don't have, so we must handle the case by assigning HDUtils.s_DefaultHDAdditionalLightData
|
|
var additionalLightData = GetHDAdditionalLightData(light);
|
|
var additionalShadowData = light.light.GetComponent<AdditionalShadowData>(); // Can be null
|
|
|
|
// Directional rendering side, it is separated as it is always visible so no volume to handle here
|
|
if (gpuLightType == GPULightType.Directional)
|
|
{
|
|
if (GetDirectionalLightData(cmd, shadowSettings, gpuLightType, light, additionalLightData, additionalShadowData, lightIndex))
|
|
{
|
|
directionalLightcount++;
|
|
|
|
// We make the light position camera-relative as late as possible in order
|
|
// to allow the preceding code to work with the absolute world space coordinates.
|
|
if (ShaderConfig.s_CameraRelativeRendering != 0)
|
|
{
|
|
// Caution: 'DirectionalLightData.positionWS' is camera-relative after this point.
|
|
int n = m_lightList.directionalLights.Count;
|
|
DirectionalLightData lightData = m_lightList.directionalLights[n - 1];
|
|
lightData.positionWS -= camPosWS;
|
|
m_lightList.directionalLights[n - 1] = lightData;
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
Vector3 lightDimensions = new Vector3(); // X = length or width, Y = height, Z = range (depth)
|
|
|
|
// Punctual, area, projector lights - the rendering side.
|
|
if (GetLightData(cmd, shadowSettings, camera, gpuLightType, light, additionalLightData, additionalShadowData, lightIndex, ref lightDimensions))
|
|
{
|
|
switch (lightCategory)
|
|
{
|
|
case LightCategory.Punctual:
|
|
punctualLightcount++;
|
|
break;
|
|
case LightCategory.Area:
|
|
areaLightCount++;
|
|
break;
|
|
default:
|
|
Debug.Assert(false, "TODO: encountered an unknown LightCategory.");
|
|
break;
|
|
}
|
|
|
|
// Then culling side. Must be call in this order as we pass the created Light data to the function
|
|
GetLightVolumeDataAndBound(lightCategory, gpuLightType, lightVolumeType, light, m_lightList.lights[m_lightList.lights.Count - 1], lightDimensions, worldToView);
|
|
|
|
// We make the light position camera-relative as late as possible in order
|
|
// to allow the preceding code to work with the absolute world space coordinates.
|
|
if (ShaderConfig.s_CameraRelativeRendering != 0)
|
|
{
|
|
// Caution: 'LightData.positionWS' is camera-relative after this point.
|
|
int n = m_lightList.lights.Count;
|
|
LightData lightData = m_lightList.lights[n - 1];
|
|
lightData.positionWS -= camPosWS;
|
|
m_lightList.lights[n - 1] = lightData;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Sanity check
|
|
Debug.Assert(m_lightList.directionalLights.Count == directionalLightcount);
|
|
Debug.Assert(m_lightList.lights.Count == areaLightCount + punctualLightcount);
|
|
|
|
m_punctualLightCount = punctualLightcount;
|
|
m_areaLightCount = areaLightCount;
|
|
|
|
// Redo everything but this time with envLights
|
|
int envLightCount = 0;
|
|
|
|
var totalProbes = cullResults.visibleReflectionProbes.Count + reflectionProbeCullResults.visiblePlanarReflectionProbeCount;
|
|
int probeCount = Math.Min(totalProbes, k_MaxEnvLightsOnScreen);
|
|
sortKeys = new uint[probeCount];
|
|
sortCount = 0;
|
|
|
|
for (int probeIndex = 0, numProbes = totalProbes; (probeIndex < numProbes) && (sortCount < probeCount); probeIndex++)
|
|
{
|
|
if (probeIndex < cullResults.visibleReflectionProbes.Count)
|
|
{
|
|
VisibleReflectionProbe probe = cullResults.visibleReflectionProbes[probeIndex];
|
|
HDAdditionalReflectionData additional = probe.probe.GetComponent<HDAdditionalReflectionData>();
|
|
|
|
// probe.texture can be null when we are adding a reflection probe in the editor
|
|
if (probe.texture == null || envLightCount >= k_MaxEnvLightsOnScreen)
|
|
continue;
|
|
|
|
// Work around the culling issues. TODO: fix culling in C++.
|
|
if (probe.probe == null || !probe.probe.isActiveAndEnabled)
|
|
continue;
|
|
|
|
// Work around the data issues.
|
|
if (probe.localToWorld.determinant == 0)
|
|
{
|
|
Debug.LogError("Reflection probe " + probe.probe.name + " has an invalid local frame and needs to be fixed.");
|
|
continue;
|
|
}
|
|
|
|
LightVolumeType lightVolumeType = LightVolumeType.Box;
|
|
if (additional != null && additional.influenceShape == ShapeType.Sphere)
|
|
lightVolumeType = LightVolumeType.Sphere;
|
|
++envLightCount;
|
|
|
|
var logVolume = CalculateProbeLogVolume(probe.bounds);
|
|
|
|
sortKeys[sortCount++] = PackProbeKey(logVolume, lightVolumeType, 0u, probeIndex); // Sort by volume
|
|
}
|
|
else
|
|
{
|
|
var planarProbeIndex = probeIndex - cullResults.visibleReflectionProbes.Count;
|
|
var probe = reflectionProbeCullResults.visiblePlanarReflectionProbes[planarProbeIndex];
|
|
|
|
// probe.texture can be null when we are adding a reflection probe in the editor
|
|
if (probe.texture == null || envLightCount >= k_MaxEnvLightsOnScreen)
|
|
continue;
|
|
|
|
var lightVolumeType = LightVolumeType.Box;
|
|
if (probe.influenceVolume.shapeType == ShapeType.Sphere)
|
|
lightVolumeType = LightVolumeType.Sphere;
|
|
++envLightCount;
|
|
|
|
var logVolume = CalculateProbeLogVolume(probe.bounds);
|
|
|
|
sortKeys[sortCount++] = PackProbeKey(logVolume, lightVolumeType, 1u, planarProbeIndex); // Sort by volume
|
|
}
|
|
}
|
|
|
|
// Not necessary yet but call it for future modification with sphere influence volume
|
|
CoreUtils.QuickSort(sortKeys, 0, sortCount - 1); // Call our own quicksort instead of Array.Sort(sortKeys, 0, sortCount) so we don't allocate memory (note the SortCount-1 that is different from original call).
|
|
|
|
for (int sortIndex = 0; sortIndex < sortCount; ++sortIndex)
|
|
{
|
|
// In 1. we have already classify and sorted the light, we need to use this sorted order here
|
|
uint sortKey = sortKeys[sortIndex];
|
|
LightVolumeType lightVolumeType;
|
|
int probeIndex;
|
|
int listType;
|
|
UnpackProbeSortKey(sortKey, out lightVolumeType, out probeIndex, out listType);
|
|
|
|
PlanarReflectionProbe planarProbe = null;
|
|
VisibleReflectionProbe probe = default(VisibleReflectionProbe);
|
|
if (listType == 0)
|
|
probe = cullResults.visibleReflectionProbes[probeIndex];
|
|
else
|
|
planarProbe = reflectionProbeCullResults.visiblePlanarReflectionProbes[probeIndex];
|
|
|
|
var probeWrapper = ProbeWrapper.Wrap(probe, planarProbe);
|
|
|
|
if (GetEnvLightData(cmd, camera, probeWrapper))
|
|
{
|
|
GetEnvLightVolumeDataAndBound(probeWrapper, lightVolumeType, worldToView);
|
|
|
|
// We make the light position camera-relative as late as possible in order
|
|
// to allow the preceding code to work with the absolute world space coordinates.
|
|
if (ShaderConfig.s_CameraRelativeRendering != 0)
|
|
{
|
|
// Caution: 'EnvLightData.positionWS' is camera-relative after this point.
|
|
int n = m_lightList.envLights.Count;
|
|
EnvLightData envLightData = m_lightList.envLights[n - 1];
|
|
envLightData.capturePositionWS -= camPosWS;
|
|
envLightData.influencePositionWS -= camPosWS;
|
|
envLightData.proxyPositionWS -= camPosWS;
|
|
m_lightList.envLights[n - 1] = envLightData;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
m_lightCount = m_lightList.lights.Count + m_lightList.envLights.Count;
|
|
Debug.Assert(m_lightList.bounds.Count == m_lightCount);
|
|
Debug.Assert(m_lightList.lightVolumes.Count == m_lightCount);
|
|
|
|
UpdateDataBuffers();
|
|
|
|
m_maxShadowDistance = shadowSettings.maxShadowDistance;
|
|
|
|
return m_enableBakeShadowMask;
|
|
}
|
|
}
|
|
|
|
static float CalculateProbeLogVolume(Bounds bounds)
|
|
{
|
|
float boxVolume = 8 * bounds.extents.x * bounds.extents.y * bounds.extents.z;
|
|
float logVolume = Mathf.Clamp(256 + Mathf.Log(boxVolume, 1.05f), 0, 4095); // Allow for negative exponents
|
|
return logVolume;
|
|
}
|
|
|
|
static void UnpackProbeSortKey(uint sortKey, out LightVolumeType lightVolumeType, out int probeIndex, out int listType)
|
|
{
|
|
lightVolumeType = (LightVolumeType)((sortKey >> 17) & 0x3);
|
|
probeIndex = (int)(sortKey & 0xFFFF);
|
|
listType = (int)((sortKey >> 16) & 1);
|
|
}
|
|
|
|
static uint PackProbeKey(float logVolume, LightVolumeType lightVolumeType, uint listType, int probeIndex)
|
|
{
|
|
// 12 bit volume, 3 bit LightVolumeType, 1 bit list type, 16 bit index
|
|
return (uint)logVolume << 20 | (uint)lightVolumeType << 17 | listType << 16 | ((uint)probeIndex & 0xFFFF);
|
|
}
|
|
|
|
void VoxelLightListGeneration(CommandBuffer cmd, HDCamera hdCamera, Matrix4x4 projscr, Matrix4x4 invProjscr, RenderTargetIdentifier cameraDepthBufferRT)
|
|
{
|
|
Camera camera = hdCamera.camera;
|
|
// clear atomic offset index
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_ClearVoxelAtomicKernel, HDShaderIDs.g_LayeredSingleIdxBuffer, s_GlobalLightListAtomic);
|
|
cmd.DispatchCompute(buildPerVoxelLightListShader, s_ClearVoxelAtomicKernel, 1, 1, 1);
|
|
|
|
bool isOrthographic = camera.orthographic;
|
|
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
|
|
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs._EnvLightIndexShift, m_lightList.lights.Count);
|
|
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);
|
|
cmd.SetComputeMatrixParam(buildPerVoxelLightListShader, HDShaderIDs.g_mScrProjection, projscr);
|
|
cmd.SetComputeMatrixParam(buildPerVoxelLightListShader, HDShaderIDs.g_mInvScrProjection, invProjscr);
|
|
|
|
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs.g_iLog2NumClusters, k_Log2NumClusters);
|
|
|
|
cmd.SetComputeVectorParam(buildPerVoxelLightListShader, HDShaderIDs.g_screenSize, hdCamera.screenSize);
|
|
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs.g_iNumSamplesMSAA, (int)hdCamera.msaaSamples);
|
|
|
|
//Vector4 v2_near = invProjscr * new Vector4(0.0f, 0.0f, 0.0f, 1.0f);
|
|
//Vector4 v2_far = invProjscr * new Vector4(0.0f, 0.0f, 1.0f, 1.0f);
|
|
//float nearPlane2 = -(v2_near.z/v2_near.w);
|
|
//float farPlane2 = -(v2_far.z/v2_far.w);
|
|
var nearPlane = camera.nearClipPlane;
|
|
var farPlane = camera.farClipPlane;
|
|
cmd.SetComputeFloatParam(buildPerVoxelLightListShader, HDShaderIDs.g_fNearPlane, nearPlane);
|
|
cmd.SetComputeFloatParam(buildPerVoxelLightListShader, HDShaderIDs.g_fFarPlane, farPlane);
|
|
|
|
const float C = (float)(1 << k_Log2NumClusters);
|
|
var geomSeries = (1.0 - Mathf.Pow(k_ClustLogBase, C)) / (1 - k_ClustLogBase); // geometric series: sum_k=0^{C-1} base^k
|
|
m_ClustScale = (float)(geomSeries / (farPlane - nearPlane));
|
|
|
|
cmd.SetComputeFloatParam(buildPerVoxelLightListShader, HDShaderIDs.g_fClustScale, m_ClustScale);
|
|
cmd.SetComputeFloatParam(buildPerVoxelLightListShader, HDShaderIDs.g_fClustBase, k_ClustLogBase);
|
|
|
|
cmd.SetComputeTextureParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_depth_tex, cameraDepthBufferRT);
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_vLayeredLightList, s_PerVoxelLightLists);
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_LayeredOffset, s_PerVoxelOffset);
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_LayeredSingleIdxBuffer, s_GlobalLightListAtomic);
|
|
if (m_FrameSettings.lightLoopSettings.enableBigTilePrepass)
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_vBigTileLightList, s_BigTileLightList);
|
|
|
|
if (k_UseDepthBuffer)
|
|
{
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_logBaseBuffer, s_PerTileLogBaseTweak);
|
|
}
|
|
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_vBoundsBuffer, s_AABBBoundsBuffer);
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs._LightVolumeData, s_LightVolumeDataBuffer);
|
|
cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, HDShaderIDs.g_data, s_ConvexBoundsBuffer);
|
|
|
|
var numTilesX = GetNumTileClusteredX(hdCamera);
|
|
var numTilesY = GetNumTileClusteredY(hdCamera);
|
|
cmd.DispatchCompute(buildPerVoxelLightListShader, s_GenListPerVoxelKernel, numTilesX, numTilesY, 1);
|
|
}
|
|
|
|
public void BuildGPULightListsCommon(HDCamera hdCamera, CommandBuffer cmd, RenderTargetIdentifier cameraDepthBufferRT, RenderTargetIdentifier stencilTextureRT, bool skyEnabled)
|
|
{
|
|
var camera = hdCamera.camera;
|
|
cmd.BeginSample("Build Light List");
|
|
|
|
var w = camera.pixelWidth;
|
|
var h = camera.pixelHeight;
|
|
s_TempIntArray[0] = w;
|
|
s_TempIntArray[1] = h;
|
|
var numBigTilesX = (w + 63) / 64;
|
|
var numBigTilesY = (h + 63) / 64;
|
|
|
|
// camera to screen matrix (and it's inverse)
|
|
var proj = CameraProjectionNonObliqueLHS(hdCamera);
|
|
var temp = new Matrix4x4();
|
|
temp.SetRow(0, new Vector4(0.5f * w, 0.0f, 0.0f, 0.5f * w));
|
|
temp.SetRow(1, new Vector4(0.0f, 0.5f * h, 0.0f, 0.5f * h));
|
|
temp.SetRow(2, new Vector4(0.0f, 0.0f, 0.5f, 0.5f));
|
|
temp.SetRow(3, new Vector4(0.0f, 0.0f, 0.0f, 1.0f));
|
|
var projscr = temp * proj;
|
|
var invProjscr = projscr.inverse;
|
|
bool isOrthographic = camera.orthographic;
|
|
|
|
// generate screen-space AABBs (used for both fptl and clustered).
|
|
if (m_lightCount != 0)
|
|
{
|
|
temp.SetRow(0, new Vector4(1.0f, 0.0f, 0.0f, 0.0f));
|
|
temp.SetRow(1, new Vector4(0.0f, 1.0f, 0.0f, 0.0f));
|
|
temp.SetRow(2, new Vector4(0.0f, 0.0f, 0.5f, 0.5f));
|
|
temp.SetRow(3, new Vector4(0.0f, 0.0f, 0.0f, 1.0f));
|
|
var projh = temp * proj;
|
|
var invProjh = projh.inverse;
|
|
|
|
cmd.SetComputeIntParam(buildScreenAABBShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
|
|
cmd.SetComputeIntParam(buildScreenAABBShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);
|
|
cmd.SetComputeBufferParam(buildScreenAABBShader, s_GenAABBKernel, HDShaderIDs.g_data, s_ConvexBoundsBuffer);
|
|
|
|
cmd.SetComputeMatrixParam(buildScreenAABBShader, HDShaderIDs.g_mProjection, projh);
|
|
cmd.SetComputeMatrixParam(buildScreenAABBShader, HDShaderIDs.g_mInvProjection, invProjh);
|
|
cmd.SetComputeBufferParam(buildScreenAABBShader, s_GenAABBKernel, HDShaderIDs.g_vBoundsBuffer, s_AABBBoundsBuffer);
|
|
cmd.DispatchCompute(buildScreenAABBShader, s_GenAABBKernel, (m_lightCount + 7) / 8, 1, 1);
|
|
}
|
|
|
|
// enable coarse 2D pass on 64x64 tiles (used for both fptl and clustered).
|
|
if (m_FrameSettings.lightLoopSettings.enableBigTilePrepass)
|
|
{
|
|
cmd.SetComputeIntParam(buildPerBigTileLightListShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
|
|
cmd.SetComputeIntParams(buildPerBigTileLightListShader, HDShaderIDs.g_viDimensions, s_TempIntArray);
|
|
cmd.SetComputeIntParam(buildPerBigTileLightListShader, HDShaderIDs._EnvLightIndexShift, m_lightList.lights.Count);
|
|
cmd.SetComputeIntParam(buildPerBigTileLightListShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);
|
|
cmd.SetComputeMatrixParam(buildPerBigTileLightListShader, HDShaderIDs.g_mScrProjection, projscr);
|
|
cmd.SetComputeMatrixParam(buildPerBigTileLightListShader, HDShaderIDs.g_mInvScrProjection, invProjscr);
|
|
cmd.SetComputeFloatParam(buildPerBigTileLightListShader, HDShaderIDs.g_fNearPlane, camera.nearClipPlane);
|
|
cmd.SetComputeFloatParam(buildPerBigTileLightListShader, HDShaderIDs.g_fFarPlane, camera.farClipPlane);
|
|
cmd.SetComputeBufferParam(buildPerBigTileLightListShader, s_GenListPerBigTileKernel, HDShaderIDs.g_vLightList, s_BigTileLightList);
|
|
cmd.SetComputeBufferParam(buildPerBigTileLightListShader, s_GenListPerBigTileKernel, HDShaderIDs.g_vBoundsBuffer, s_AABBBoundsBuffer);
|
|
cmd.SetComputeBufferParam(buildPerBigTileLightListShader, s_GenListPerBigTileKernel, HDShaderIDs._LightVolumeData, s_LightVolumeDataBuffer);
|
|
cmd.SetComputeBufferParam(buildPerBigTileLightListShader, s_GenListPerBigTileKernel, HDShaderIDs.g_data, s_ConvexBoundsBuffer);
|
|
cmd.DispatchCompute(buildPerBigTileLightListShader, s_GenListPerBigTileKernel, numBigTilesX, numBigTilesY, 1);
|
|
}
|
|
|
|
var numTilesX = GetNumTileFtplX(hdCamera);
|
|
var numTilesY = GetNumTileFtplY(hdCamera);
|
|
var numTiles = numTilesX * numTilesY;
|
|
bool enableFeatureVariants = GetFeatureVariantsEnabled();
|
|
|
|
// optimized for opaques only
|
|
if (m_FrameSettings.lightLoopSettings.isFptlEnabled)
|
|
{
|
|
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
|
|
cmd.SetComputeIntParams(buildPerTileLightListShader, HDShaderIDs.g_viDimensions, s_TempIntArray);
|
|
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs._EnvLightIndexShift, m_lightList.lights.Count);
|
|
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);
|
|
|
|
cmd.SetComputeBufferParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs.g_vBoundsBuffer, s_AABBBoundsBuffer);
|
|
cmd.SetComputeBufferParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs._LightVolumeData, s_LightVolumeDataBuffer);
|
|
cmd.SetComputeBufferParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs.g_data, s_ConvexBoundsBuffer);
|
|
|
|
cmd.SetComputeMatrixParam(buildPerTileLightListShader, HDShaderIDs.g_mScrProjection, projscr);
|
|
cmd.SetComputeMatrixParam(buildPerTileLightListShader, HDShaderIDs.g_mInvScrProjection, invProjscr);
|
|
cmd.SetComputeTextureParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs.g_depth_tex, cameraDepthBufferRT);
|
|
cmd.SetComputeBufferParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs.g_vLightList, s_LightList);
|
|
if (m_FrameSettings.lightLoopSettings.enableBigTilePrepass)
|
|
cmd.SetComputeBufferParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs.g_vBigTileLightList, s_BigTileLightList);
|
|
|
|
if (enableFeatureVariants)
|
|
{
|
|
uint baseFeatureFlags = 0;
|
|
if (m_lightList.directionalLights.Count > 0)
|
|
{
|
|
baseFeatureFlags |= (uint)LightFeatureFlags.Directional;
|
|
}
|
|
if (skyEnabled)
|
|
{
|
|
baseFeatureFlags |= (uint)LightFeatureFlags.Sky;
|
|
}
|
|
if (!m_FrameSettings.lightLoopSettings.enableComputeMaterialVariants)
|
|
{
|
|
baseFeatureFlags |= LightDefinitions.s_MaterialFeatureMaskFlags;
|
|
}
|
|
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs.g_BaseFeatureFlags, (int)baseFeatureFlags);
|
|
cmd.SetComputeBufferParam(buildPerTileLightListShader, s_GenListPerTileKernel, HDShaderIDs.g_TileFeatureFlags, s_TileFeatureFlags);
|
|
}
|
|
|
|
cmd.DispatchCompute(buildPerTileLightListShader, s_GenListPerTileKernel, numTilesX, numTilesY, 1);
|
|
}
|
|
|
|
// Cluster
|
|
VoxelLightListGeneration(cmd, hdCamera, projscr, invProjscr, cameraDepthBufferRT);
|
|
|
|
if (enableFeatureVariants)
|
|
{
|
|
// material classification
|
|
if (m_FrameSettings.lightLoopSettings.enableComputeMaterialVariants)
|
|
{
|
|
int buildMaterialFlagsKernel = s_BuildMaterialFlagsOrKernel;
|
|
|
|
uint baseFeatureFlags = 0;
|
|
if (!m_FrameSettings.lightLoopSettings.enableComputeLightVariants)
|
|
{
|
|
buildMaterialFlagsKernel = s_BuildMaterialFlagsWriteKernel;
|
|
baseFeatureFlags |= LightDefinitions.s_LightFeatureMaskFlags;
|
|
}
|
|
|
|
cmd.SetComputeIntParam(buildMaterialFlagsShader, HDShaderIDs.g_BaseFeatureFlags, (int)baseFeatureFlags);
|
|
cmd.SetComputeIntParams(buildMaterialFlagsShader, HDShaderIDs.g_viDimensions, s_TempIntArray);
|
|
cmd.SetComputeBufferParam(buildMaterialFlagsShader, buildMaterialFlagsKernel, HDShaderIDs.g_TileFeatureFlags, s_TileFeatureFlags);
|
|
|
|
cmd.SetComputeTextureParam(buildMaterialFlagsShader, buildMaterialFlagsKernel, HDShaderIDs._StencilTexture, stencilTextureRT);
|
|
|
|
cmd.DispatchCompute(buildMaterialFlagsShader, buildMaterialFlagsKernel, numTilesX, numTilesY, 1);
|
|
}
|
|
|
|
// clear dispatch indirect buffer
|
|
cmd.SetComputeBufferParam(clearDispatchIndirectShader, s_ClearDispatchIndirectKernel, HDShaderIDs.g_DispatchIndirectBuffer, s_DispatchIndirectBuffer);
|
|
cmd.DispatchCompute(clearDispatchIndirectShader, s_ClearDispatchIndirectKernel, 1, 1, 1);
|
|
|
|
// add tiles to indirect buffer
|
|
cmd.SetComputeBufferParam(buildDispatchIndirectShader, s_BuildDispatchIndirectKernel, HDShaderIDs.g_DispatchIndirectBuffer, s_DispatchIndirectBuffer);
|
|
cmd.SetComputeBufferParam(buildDispatchIndirectShader, s_BuildDispatchIndirectKernel, HDShaderIDs.g_TileList, s_TileList);
|
|
cmd.SetComputeBufferParam(buildDispatchIndirectShader, s_BuildDispatchIndirectKernel, HDShaderIDs.g_TileFeatureFlags, s_TileFeatureFlags);
|
|
cmd.SetComputeIntParam(buildDispatchIndirectShader, HDShaderIDs.g_NumTiles, numTiles);
|
|
cmd.SetComputeIntParam(buildDispatchIndirectShader, HDShaderIDs.g_NumTilesX, numTilesX);
|
|
cmd.DispatchCompute(buildDispatchIndirectShader, s_BuildDispatchIndirectKernel, (numTiles + 63) / 64, 1, 1);
|
|
}
|
|
|
|
cmd.EndSample("Build Light List");
|
|
}
|
|
|
|
public void BuildGPULightLists(HDCamera hdCamera, CommandBuffer cmd, RenderTargetIdentifier cameraDepthBufferRT, RenderTargetIdentifier stencilTextureRT, bool skyEnabled)
|
|
{
|
|
cmd.SetRenderTarget(BuiltinRenderTextureType.None);
|
|
|
|
BuildGPULightListsCommon(hdCamera, cmd, cameraDepthBufferRT, stencilTextureRT, skyEnabled);
|
|
PushGlobalParams(hdCamera, cmd);
|
|
}
|
|
|
|
public GPUFence BuildGPULightListsAsyncBegin(HDCamera hdCamera, ScriptableRenderContext renderContext, RenderTargetIdentifier cameraDepthBufferRT, RenderTargetIdentifier stencilTextureRT, GPUFence startFence, bool skyEnabled)
|
|
{
|
|
var cmd = CommandBufferPool.Get("Build light list");
|
|
cmd.WaitOnGPUFence(startFence);
|
|
|
|
BuildGPULightListsCommon(hdCamera, cmd, cameraDepthBufferRT, stencilTextureRT, skyEnabled);
|
|
GPUFence completeFence = cmd.CreateGPUFence();
|
|
renderContext.ExecuteCommandBufferAsync(cmd, ComputeQueueType.Background);
|
|
CommandBufferPool.Release(cmd);
|
|
|
|
return completeFence;
|
|
}
|
|
|
|
public void BuildGPULightListAsyncEnd(HDCamera hdCamera, CommandBuffer cmd, GPUFence doneFence)
|
|
{
|
|
cmd.WaitOnGPUFence(doneFence);
|
|
PushGlobalParams(hdCamera, cmd);
|
|
}
|
|
|
|
private void UpdateDataBuffers()
|
|
{
|
|
s_DirectionalLightDatas.SetData(m_lightList.directionalLights);
|
|
s_LightDatas.SetData(m_lightList.lights);
|
|
s_EnvLightDatas.SetData(m_lightList.envLights);
|
|
s_shadowDatas.SetData(m_lightList.shadows);
|
|
|
|
// These two buffers have been set in Rebuild()
|
|
s_ConvexBoundsBuffer.SetData(m_lightList.bounds);
|
|
s_LightVolumeDataBuffer.SetData(m_lightList.lightVolumes);
|
|
}
|
|
|
|
HDAdditionalReflectionData GetHDAdditionalReflectionData(VisibleReflectionProbe probe)
|
|
{
|
|
var add = probe.probe.GetComponent<HDAdditionalReflectionData>();
|
|
if (add == null)
|
|
{
|
|
add = HDUtils.s_DefaultHDAdditionalReflectionData;
|
|
add.blendDistancePositive = Vector3.one * probe.blendDistance;
|
|
add.blendDistanceNegative = add.blendDistancePositive;
|
|
add.influenceShape = ShapeType.Box;
|
|
}
|
|
return add;
|
|
}
|
|
|
|
HDAdditionalLightData GetHDAdditionalLightData(VisibleLight light)
|
|
{
|
|
var add = light.light.GetComponent<HDAdditionalLightData>();
|
|
if (add == null)
|
|
{
|
|
add = HDUtils.s_DefaultHDAdditionalLightData;
|
|
}
|
|
return add;
|
|
}
|
|
|
|
void PushGlobalParams(HDCamera hdCamera, CommandBuffer cmd)
|
|
{
|
|
using (new ProfilingSample(cmd, "Push Global Parameters", CustomSamplerId.TPPushGlobalParameters.GetSampler()))
|
|
{
|
|
Camera camera = hdCamera.camera;
|
|
// Shadows
|
|
m_ShadowMgr.SyncData();
|
|
m_ShadowMgr.BindResources(cmd, null, 0);
|
|
|
|
cmd.SetGlobalTexture(HDShaderIDs._CookieTextures, m_CookieTexArray.GetTexCache());
|
|
cmd.SetGlobalTexture(HDShaderIDs._CookieCubeTextures, m_CubeCookieTexArray.GetTexCache());
|
|
cmd.SetGlobalTexture(HDShaderIDs._EnvCubemapTextures, m_ReflectionProbeCache.GetTexCache());
|
|
cmd.SetGlobalTexture(HDShaderIDs._Env2DTextures, m_ReflectionPlanarProbeCache.GetTexCache());
|
|
cmd.SetGlobalMatrixArray(HDShaderIDs._Env2DCaptureVP, m_Env2DCaptureVP);
|
|
|
|
cmd.SetGlobalBuffer(HDShaderIDs._DirectionalLightDatas, s_DirectionalLightDatas);
|
|
cmd.SetGlobalInt(HDShaderIDs._DirectionalLightCount, m_lightList.directionalLights.Count);
|
|
cmd.SetGlobalBuffer(HDShaderIDs._LightDatas, s_LightDatas);
|
|
cmd.SetGlobalInt(HDShaderIDs._PunctualLightCount, m_punctualLightCount);
|
|
cmd.SetGlobalInt(HDShaderIDs._AreaLightCount, m_areaLightCount);
|
|
cmd.SetGlobalBuffer(HDShaderIDs._EnvLightDatas, s_EnvLightDatas);
|
|
cmd.SetGlobalInt(HDShaderIDs._EnvLightCount, m_lightList.envLights.Count);
|
|
cmd.SetGlobalBuffer(HDShaderIDs._ShadowDatas, s_shadowDatas);
|
|
|
|
cmd.SetGlobalInt(HDShaderIDs._NumTileFtplX, GetNumTileFtplX(hdCamera));
|
|
cmd.SetGlobalInt(HDShaderIDs._NumTileFtplY, GetNumTileFtplY(hdCamera));
|
|
|
|
cmd.SetGlobalInt(HDShaderIDs._NumTileClusteredX, GetNumTileClusteredX(hdCamera));
|
|
cmd.SetGlobalInt(HDShaderIDs._NumTileClusteredY, GetNumTileClusteredY(hdCamera));
|
|
|
|
if (m_FrameSettings.lightLoopSettings.enableBigTilePrepass)
|
|
cmd.SetGlobalBuffer(HDShaderIDs.g_vBigTileLightList, s_BigTileLightList);
|
|
|
|
// Cluster
|
|
{
|
|
cmd.SetGlobalFloat(HDShaderIDs.g_fClustScale, m_ClustScale);
|
|
cmd.SetGlobalFloat(HDShaderIDs.g_fClustBase, k_ClustLogBase);
|
|
cmd.SetGlobalFloat(HDShaderIDs.g_fNearPlane, camera.nearClipPlane);
|
|
cmd.SetGlobalFloat(HDShaderIDs.g_fFarPlane, camera.farClipPlane);
|
|
cmd.SetGlobalInt(HDShaderIDs.g_iLog2NumClusters, k_Log2NumClusters);
|
|
|
|
cmd.SetGlobalInt(HDShaderIDs.g_isLogBaseBufferEnabled, k_UseDepthBuffer ? 1 : 0);
|
|
|
|
cmd.SetGlobalBuffer(HDShaderIDs.g_vLayeredOffsetsBuffer, s_PerVoxelOffset);
|
|
if (k_UseDepthBuffer)
|
|
{
|
|
cmd.SetGlobalBuffer(HDShaderIDs.g_logBaseBuffer, s_PerTileLogBaseTweak);
|
|
}
|
|
|
|
// Set up clustered lighting for volumetrics.
|
|
cmd.SetGlobalBuffer(HDShaderIDs.g_vLightListGlobal, s_PerVoxelLightLists);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void RenderShadows(ScriptableRenderContext renderContext, CommandBuffer cmd, CullResults cullResults)
|
|
{
|
|
// kick off the shadow jobs here
|
|
m_ShadowMgr.RenderShadows(m_FrameId, renderContext, cmd, cullResults, cullResults.visibleLights);
|
|
}
|
|
|
|
public struct LightingPassOptions
|
|
{
|
|
public bool outputSplitLighting;
|
|
}
|
|
|
|
public void RenderDeferredDirectionalShadow(HDCamera hdCamera, RTHandle deferredShadowRT, RenderTargetIdentifier depthTexture, CommandBuffer cmd)
|
|
{
|
|
if (m_CurrentSunLight == null || m_CurrentSunLight.GetComponent<AdditionalShadowData>() == null)
|
|
{
|
|
cmd.SetGlobalTexture(HDShaderIDs._DeferredShadowTexture, RuntimeUtilities.blackTexture);
|
|
return;
|
|
}
|
|
|
|
using (new ProfilingSample(cmd, "Deferred Directional Shadow", CustomSamplerId.TPDeferredDirectionalShadow.GetSampler()))
|
|
{
|
|
AdditionalShadowData asd = m_CurrentSunLight.GetComponent<AdditionalShadowData>();
|
|
|
|
bool enableContactShadows = m_FrameSettings.enableContactShadows && asd.enableContactShadows && asd.contactShadowLength > 0.0f;
|
|
int kernel;
|
|
if (enableContactShadows)
|
|
kernel = m_FrameSettings.enableForwardRenderingOnly ? s_deferredDirectionalShadow_Contact_Kernel : s_deferredDirectionalShadow_Contact_Normals_Kernel;
|
|
else
|
|
kernel = m_FrameSettings.enableForwardRenderingOnly ? s_deferredDirectionalShadowKernel : s_deferredDirectionalShadow_Normals_Kernel;
|
|
|
|
m_ShadowMgr.BindResources(cmd, deferredDirectionalShadowComputeShader, kernel);
|
|
|
|
if (enableContactShadows)
|
|
{
|
|
float contactShadowRange = Mathf.Clamp(asd.contactShadowFadeDistance, 0.0f, asd.contactShadowMaxDistance);
|
|
float contactShadowFadeEnd = asd.contactShadowMaxDistance;
|
|
float contactShadowOneOverFadeRange = 1.0f / (contactShadowRange);
|
|
Vector4 contactShadowParams = new Vector4(asd.contactShadowLength, asd.contactShadowDistanceScaleFactor, contactShadowFadeEnd, contactShadowOneOverFadeRange);
|
|
cmd.SetComputeVectorParam(deferredDirectionalShadowComputeShader, HDShaderIDs._DirectionalContactShadowParams, contactShadowParams);
|
|
cmd.SetComputeIntParam(deferredDirectionalShadowComputeShader, HDShaderIDs._DirectionalContactShadowSampleCount, (int)asd.contactShadowSampleCount);
|
|
}
|
|
|
|
cmd.SetComputeIntParam(deferredDirectionalShadowComputeShader, HDShaderIDs._DirectionalShadowIndex, m_CurrentSunLightShadowIndex);
|
|
cmd.SetComputeVectorParam(deferredDirectionalShadowComputeShader, HDShaderIDs._DirectionalLightDirection, -m_CurrentSunLight.transform.forward);
|
|
cmd.SetComputeTextureParam(deferredDirectionalShadowComputeShader, kernel, HDShaderIDs._DeferredShadowTextureUAV, deferredShadowRT);
|
|
cmd.SetComputeTextureParam(deferredDirectionalShadowComputeShader, kernel, HDShaderIDs._MainDepthTexture, depthTexture);
|
|
|
|
int deferredShadowTileSize = 16; // Must match DeferreDirectionalShadow.compute
|
|
int numTilesX = (hdCamera.actualWidth + (deferredShadowTileSize - 1)) / deferredShadowTileSize;
|
|
int numTilesY = (hdCamera.actualHeight + (deferredShadowTileSize - 1)) / deferredShadowTileSize;
|
|
|
|
hdCamera.SetupComputeShader(deferredDirectionalShadowComputeShader, cmd);
|
|
|
|
// TODO: Update for stereo
|
|
cmd.DispatchCompute(deferredDirectionalShadowComputeShader, kernel, numTilesX, numTilesY, 1);
|
|
|
|
cmd.SetGlobalTexture(HDShaderIDs._DeferredShadowTexture, deferredShadowRT);
|
|
}
|
|
}
|
|
|
|
public void RenderDeferredLighting( HDCamera hdCamera, CommandBuffer cmd, DebugDisplaySettings debugDisplaySettings,
|
|
RenderTargetIdentifier[] colorBuffers, RenderTargetIdentifier depthStencilBuffer, RenderTargetIdentifier depthTexture,
|
|
LightingPassOptions options)
|
|
{
|
|
cmd.SetGlobalBuffer(HDShaderIDs.g_vLightListGlobal, s_LightList);
|
|
|
|
if (m_FrameSettings.lightLoopSettings.enableTileAndCluster && m_FrameSettings.lightLoopSettings.enableComputeLightEvaluation && options.outputSplitLighting)
|
|
{
|
|
// The CS is always in the MRT mode. Do not execute the same shader twice.
|
|
return;
|
|
}
|
|
|
|
|
|
// Predeclared to reduce GC pressure
|
|
string tilePassName = "TilePass - Deferred Lighting Pass";
|
|
string tilePassMRTName = "TilePass - Deferred Lighting Pass MRT";
|
|
string singlePassName = "SinglePass - Deferred Lighting Pass";
|
|
string SinglePassMRTName = "SinglePass - Deferred Lighting Pass MRT";
|
|
|
|
string sLabel = m_FrameSettings.lightLoopSettings.enableTileAndCluster ?
|
|
(options.outputSplitLighting ? tilePassMRTName : tilePassName) :
|
|
(options.outputSplitLighting ? SinglePassMRTName : singlePassName);
|
|
|
|
using (new ProfilingSample(cmd, sLabel, CustomSamplerId.TPRenderDeferredLighting.GetSampler()))
|
|
{
|
|
var camera = hdCamera.camera;
|
|
|
|
// Compute path
|
|
if (m_FrameSettings.lightLoopSettings.enableTileAndCluster && m_FrameSettings.lightLoopSettings.enableComputeLightEvaluation)
|
|
{
|
|
int w = camera.pixelWidth;
|
|
int h = camera.pixelHeight;
|
|
int numTilesX = (w + 15) / 16;
|
|
int numTilesY = (h + 15) / 16;
|
|
int numTiles = numTilesX * numTilesY;
|
|
|
|
bool enableFeatureVariants = GetFeatureVariantsEnabled() && !debugDisplaySettings.IsDebugDisplayEnabled();
|
|
|
|
int numVariants = 1;
|
|
if (enableFeatureVariants)
|
|
numVariants = LightDefinitions.s_NumFeatureVariants;
|
|
|
|
|
|
hdCamera.SetupComputeShader(deferredComputeShader, cmd);
|
|
|
|
for (int variant = 0; variant < numVariants; variant++)
|
|
{
|
|
int kernel;
|
|
|
|
if (enableFeatureVariants)
|
|
{
|
|
if (m_enableBakeShadowMask)
|
|
kernel = s_shadeOpaqueIndirectShadowMaskFptlKernels[variant];
|
|
else
|
|
kernel = s_shadeOpaqueIndirectFptlKernels[variant];
|
|
}
|
|
else
|
|
{
|
|
if (m_enableBakeShadowMask)
|
|
{
|
|
kernel = debugDisplaySettings.IsDebugDisplayEnabled() ? s_shadeOpaqueDirectShadowMaskFptlDebugDisplayKernel : s_shadeOpaqueDirectShadowMaskFptlKernel;
|
|
}
|
|
else
|
|
{
|
|
kernel = debugDisplaySettings.IsDebugDisplayEnabled() ? s_shadeOpaqueDirectFptlDebugDisplayKernel : s_shadeOpaqueDirectFptlKernel;
|
|
}
|
|
}
|
|
|
|
cmd.SetComputeTextureParam(deferredComputeShader, kernel, HDShaderIDs._MainDepthTexture, depthTexture);
|
|
|
|
// TODO: Is it possible to setup this outside the loop ? Can figure out how, get this: Property (specularLightingUAV) at kernel index (21) is not set
|
|
cmd.SetComputeTextureParam(deferredComputeShader, kernel, HDShaderIDs.specularLightingUAV, colorBuffers[0]);
|
|
cmd.SetComputeTextureParam(deferredComputeShader, kernel, HDShaderIDs.diffuseLightingUAV, colorBuffers[1]);
|
|
|
|
// always do deferred lighting in blocks of 16x16 (not same as tiled light size)
|
|
|
|
if (enableFeatureVariants)
|
|
{
|
|
cmd.SetComputeBufferParam(deferredComputeShader, kernel, HDShaderIDs.g_TileFeatureFlags, s_TileFeatureFlags);
|
|
cmd.SetComputeIntParam(deferredComputeShader, HDShaderIDs.g_TileListOffset, variant * numTiles);
|
|
cmd.SetComputeBufferParam(deferredComputeShader, kernel, HDShaderIDs.g_TileList, s_TileList);
|
|
cmd.DispatchCompute(deferredComputeShader, kernel, s_DispatchIndirectBuffer, (uint)variant * 3 * sizeof(uint));
|
|
}
|
|
else
|
|
{
|
|
cmd.DispatchCompute(deferredComputeShader, kernel, numTilesX, numTilesY, 1);
|
|
}
|
|
}
|
|
}
|
|
else // Pixel shader evaluation
|
|
{
|
|
int index = GetDeferredLightingMaterialIndex( options.outputSplitLighting ? 1 : 0,
|
|
m_FrameSettings.lightLoopSettings.enableTileAndCluster ? 1 : 0,
|
|
m_enableBakeShadowMask ? 1 : 0,
|
|
debugDisplaySettings.IsDebugDisplayEnabled() ? 1 : 0);
|
|
|
|
Material currentLightingMaterial = m_deferredLightingMaterial[index];
|
|
|
|
if (options.outputSplitLighting)
|
|
{
|
|
CoreUtils.DrawFullScreen(cmd, currentLightingMaterial, colorBuffers, depthStencilBuffer);
|
|
}
|
|
else
|
|
{
|
|
// If SSS is disable, do lighting for both split lighting and no split lighting
|
|
// This is for debug purpose, so fine to use immediate material mode here to modify render state
|
|
if (!m_FrameSettings.enableSubsurfaceScattering)
|
|
{
|
|
currentLightingMaterial.SetInt(HDShaderIDs._StencilRef, (int)StencilLightingUsage.NoLighting);
|
|
currentLightingMaterial.SetInt(HDShaderIDs._StencilCmp, (int)CompareFunction.NotEqual);
|
|
}
|
|
else
|
|
{
|
|
currentLightingMaterial.SetInt(HDShaderIDs._StencilRef, (int)StencilLightingUsage.RegularLighting);
|
|
currentLightingMaterial.SetInt(HDShaderIDs._StencilCmp, (int)CompareFunction.Equal);
|
|
}
|
|
|
|
CoreUtils.DrawFullScreen(cmd, currentLightingMaterial, colorBuffers[0], depthStencilBuffer);
|
|
}
|
|
}
|
|
} // End profiling
|
|
}
|
|
|
|
public void RenderForward(Camera camera, CommandBuffer cmd, bool renderOpaque)
|
|
{
|
|
// Note: SHADOWS_SHADOWMASK keyword is enabled in HDRenderPipeline.cs ConfigureForShadowMask
|
|
|
|
// Note: if we use render opaque with deferred tiling we need to render a opaque depth pass for these opaque objects
|
|
if (!m_FrameSettings.lightLoopSettings.enableTileAndCluster)
|
|
{
|
|
using (new ProfilingSample(cmd, "Forward pass", CustomSamplerId.TPForwardPass.GetSampler()))
|
|
{
|
|
cmd.EnableShaderKeyword("LIGHTLOOP_SINGLE_PASS");
|
|
cmd.DisableShaderKeyword("LIGHTLOOP_TILE_PASS");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Only opaques can use FPTL, transparent must use clustered!
|
|
bool useFptl = renderOpaque && m_FrameSettings.lightLoopSettings.enableFptlForForwardOpaque;
|
|
|
|
using (new ProfilingSample(cmd, useFptl ? "Forward Tiled pass" : "Forward Clustered pass", CustomSamplerId.TPForwardTiledClusterpass.GetSampler()))
|
|
{
|
|
// say that we want to use tile of single loop
|
|
cmd.EnableShaderKeyword("LIGHTLOOP_TILE_PASS");
|
|
cmd.DisableShaderKeyword("LIGHTLOOP_SINGLE_PASS");
|
|
CoreUtils.SetKeyword(cmd, "USE_FPTL_LIGHTLIST", useFptl);
|
|
CoreUtils.SetKeyword(cmd, "USE_CLUSTERED_LIGHTLIST", !useFptl);
|
|
cmd.SetGlobalBuffer(HDShaderIDs.g_vLightListGlobal, useFptl ? s_LightList : s_PerVoxelLightLists);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void RenderDebugOverlay(HDCamera hdCamera, CommandBuffer cmd, DebugDisplaySettings debugDisplaySettings, ref float x, ref float y, float overlaySize, float width)
|
|
{
|
|
LightingDebugSettings lightingDebug = debugDisplaySettings.lightingDebugSettings;
|
|
|
|
if (lightingDebug.debugLightingMode == DebugLightingMode.EnvironmentProxyVolume)
|
|
cmd.SetGlobalFloat(HDShaderIDs._DebugEnvironmentProxyDepthScale, lightingDebug.environmentProxyDepthScale);
|
|
|
|
using (new ProfilingSample(cmd, "Tiled/cluster Lighting Debug", CustomSamplerId.TPTiledLightingDebug.GetSampler()))
|
|
{
|
|
if (lightingDebug.tileClusterDebug != LightLoop.TileClusterDebug.None)
|
|
{
|
|
|
|
int w = hdCamera.actualWidth;
|
|
int h = hdCamera.actualHeight;
|
|
int numTilesX = (w + 15) / 16;
|
|
int numTilesY = (h + 15) / 16;
|
|
int numTiles = numTilesX * numTilesY;
|
|
|
|
// Debug tiles
|
|
if (lightingDebug.tileClusterDebug == LightLoop.TileClusterDebug.MaterialFeatureVariants)
|
|
{
|
|
if (GetFeatureVariantsEnabled())
|
|
{
|
|
// featureVariants
|
|
m_DebugViewTilesMaterial.SetInt(HDShaderIDs._NumTiles, numTiles);
|
|
m_DebugViewTilesMaterial.SetInt(HDShaderIDs._ViewTilesFlags, (int)lightingDebug.tileClusterDebugByCategory);
|
|
m_DebugViewTilesMaterial.SetVector(HDShaderIDs._MousePixelCoord, HDUtils.GetMouseCoordinates(hdCamera));
|
|
m_DebugViewTilesMaterial.SetBuffer(HDShaderIDs.g_TileList, s_TileList);
|
|
m_DebugViewTilesMaterial.SetBuffer(HDShaderIDs.g_DispatchIndirectBuffer, s_DispatchIndirectBuffer);
|
|
m_DebugViewTilesMaterial.EnableKeyword("USE_FPTL_LIGHTLIST");
|
|
m_DebugViewTilesMaterial.DisableKeyword("USE_CLUSTERED_LIGHTLIST");
|
|
m_DebugViewTilesMaterial.DisableKeyword("SHOW_LIGHT_CATEGORIES");
|
|
m_DebugViewTilesMaterial.EnableKeyword("SHOW_FEATURE_VARIANTS");
|
|
cmd.DrawProcedural(Matrix4x4.identity, m_DebugViewTilesMaterial, 0, MeshTopology.Triangles, numTiles * 6);
|
|
}
|
|
}
|
|
else // tile or cluster
|
|
{
|
|
bool bUseClustered = lightingDebug.tileClusterDebug == LightLoop.TileClusterDebug.Cluster;
|
|
|
|
// lightCategories
|
|
m_DebugViewTilesMaterial.SetInt(HDShaderIDs._ViewTilesFlags, (int)lightingDebug.tileClusterDebugByCategory);
|
|
m_DebugViewTilesMaterial.SetVector(HDShaderIDs._MousePixelCoord, HDUtils.GetMouseCoordinates(hdCamera));
|
|
m_DebugViewTilesMaterial.SetBuffer(HDShaderIDs.g_vLightListGlobal, bUseClustered ? s_PerVoxelLightLists : s_LightList);
|
|
m_DebugViewTilesMaterial.EnableKeyword(bUseClustered ? "USE_CLUSTERED_LIGHTLIST" : "USE_FPTL_LIGHTLIST");
|
|
m_DebugViewTilesMaterial.DisableKeyword(!bUseClustered ? "USE_CLUSTERED_LIGHTLIST" : "USE_FPTL_LIGHTLIST");
|
|
m_DebugViewTilesMaterial.EnableKeyword("SHOW_LIGHT_CATEGORIES");
|
|
m_DebugViewTilesMaterial.DisableKeyword("SHOW_FEATURE_VARIANTS");
|
|
|
|
CoreUtils.DrawFullScreen(cmd, m_DebugViewTilesMaterial, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
using (new ProfilingSample(cmd, "Display Shadows", CustomSamplerId.TPDisplayShadows.GetSampler()))
|
|
{
|
|
if (lightingDebug.shadowDebugMode == ShadowMapDebugMode.VisualizeShadowMap)
|
|
{
|
|
int index = (int)lightingDebug.shadowMapIndex;
|
|
|
|
#if UNITY_EDITOR
|
|
if(lightingDebug.shadowDebugUseSelection)
|
|
{
|
|
index = -1;
|
|
if (UnityEditor.Selection.activeObject is GameObject)
|
|
{
|
|
GameObject go = UnityEditor.Selection.activeObject as GameObject;
|
|
Light light = go.GetComponent<Light>();
|
|
if (light != null)
|
|
{
|
|
index = m_ShadowMgr.GetShadowRequestIndex(light);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if(index != -1)
|
|
{
|
|
uint faceCount = m_ShadowMgr.GetShadowRequestFaceCount((uint)index);
|
|
for (uint i = 0; i < faceCount; ++i)
|
|
{
|
|
m_ShadowMgr.DisplayShadow(cmd, m_DebugShadowMapMaterial, index, i, x, y, overlaySize, overlaySize, lightingDebug.shadowMinValue, lightingDebug.shadowMaxValue);
|
|
HDUtils.NextOverlayCoord(ref x, ref y, overlaySize, overlaySize, hdCamera.actualWidth);
|
|
}
|
|
}
|
|
}
|
|
else if (lightingDebug.shadowDebugMode == ShadowMapDebugMode.VisualizeAtlas)
|
|
{
|
|
m_ShadowMgr.DisplayShadowMap(cmd, m_DebugShadowMapMaterial, lightingDebug.shadowAtlasIndex, 0, x, y, overlaySize, overlaySize, lightingDebug.shadowMinValue, lightingDebug.shadowMaxValue);
|
|
HDUtils.NextOverlayCoord(ref x, ref y, overlaySize, overlaySize, hdCamera.actualWidth);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|