您最多选择25个主题
主题必须以中文或者字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
579 行
31 KiB
579 行
31 KiB
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using UnityEngine.Experimental.GlobalIllumination;
|
|
using UnityEngine.Rendering;
|
|
using UnityEngine.Rendering.PostProcessing;
|
|
using UnityEngine.XR;
|
|
|
|
namespace UnityEngine.Experimental.Rendering.LightweightPipeline
|
|
{
|
|
public class ForwardLitPass : ScriptableRenderPass
|
|
{
|
|
const int k_DepthStencilBufferBits = 32;
|
|
Vector4 k_DefaultLightPosition = new Vector4(0.0f, 0.0f, 1.0f, 0.0f);
|
|
Vector4 k_DefaultLightColor = Color.black;
|
|
Vector4 k_DefaultLightAttenuation = new Vector4(0.0f, 1.0f, 0.0f, 1.0f);
|
|
Vector4 k_DefaultLightSpotDirection = new Vector4(0.0f, 0.0f, 1.0f, 0.0f);
|
|
Vector4 k_DefaultLightSpotAttenuation = new Vector4(0.0f, 1.0f, 0.0f, 0.0f);
|
|
|
|
Vector4[] m_LightPositions;
|
|
Vector4[] m_LightColors;
|
|
Vector4[] m_LightDistanceAttenuations;
|
|
Vector4[] m_LightSpotDirections;
|
|
Vector4[] m_LightSpotAttenuations;
|
|
|
|
RenderTextureFormat m_ColorFormat;
|
|
MixedLightingSetup m_MixedLightingSetup;
|
|
Material m_BlitMaterial;
|
|
Material m_ErrorMaterial;
|
|
|
|
// Depth Copy Pass
|
|
Material m_DepthCopyMaterial;
|
|
|
|
// Opaque Copy Pass
|
|
Material m_SamplingMaterial;
|
|
float[] m_OpaqueScalerValues = {1.0f, 0.5f, 0.25f, 0.25f};
|
|
int m_SampleOffsetShaderHandle;
|
|
|
|
const string k_SetupRenderTargetTag = "Setup Render Target";
|
|
const string k_RenderOpaquesTag = "Render Opaques";
|
|
const string k_RenderTransparentsTag = "Render Transparents";
|
|
|
|
List<ShaderPassName> m_LegacyShaderPassNames;
|
|
|
|
public ForwardLitPass(LightweightForwardRenderer renderer) : base(renderer)
|
|
{
|
|
RegisterShaderPassName("LightweightForward");
|
|
RegisterShaderPassName("SRPDefaultUnlit");
|
|
|
|
m_LegacyShaderPassNames = new List<ShaderPassName>();
|
|
m_LegacyShaderPassNames.Add(new ShaderPassName("Always"));
|
|
m_LegacyShaderPassNames.Add(new ShaderPassName("ForwardBase"));
|
|
m_LegacyShaderPassNames.Add(new ShaderPassName("PrepassBase"));
|
|
m_LegacyShaderPassNames.Add(new ShaderPassName("Vertex"));
|
|
m_LegacyShaderPassNames.Add(new ShaderPassName("VertexLMRGBM"));
|
|
m_LegacyShaderPassNames.Add(new ShaderPassName("VertexLM"));
|
|
|
|
PerCameraBuffer._MainLightPosition = Shader.PropertyToID("_MainLightPosition");
|
|
PerCameraBuffer._MainLightColor = Shader.PropertyToID("_MainLightColor");
|
|
PerCameraBuffer._MainLightCookie = Shader.PropertyToID("_MainLightCookie");
|
|
PerCameraBuffer._WorldToLight = Shader.PropertyToID("_WorldToLight");
|
|
PerCameraBuffer._AdditionalLightCount = Shader.PropertyToID("_AdditionalLightCount");
|
|
PerCameraBuffer._AdditionalLightPosition = Shader.PropertyToID("_AdditionalLightPosition");
|
|
PerCameraBuffer._AdditionalLightColor = Shader.PropertyToID("_AdditionalLightColor");
|
|
PerCameraBuffer._AdditionalLightDistanceAttenuation = Shader.PropertyToID("_AdditionalLightDistanceAttenuation");
|
|
PerCameraBuffer._AdditionalLightSpotDir = Shader.PropertyToID("_AdditionalLightSpotDir");
|
|
PerCameraBuffer._AdditionalLightSpotAttenuation = Shader.PropertyToID("_AdditionalLightSpotAttenuation");
|
|
PerCameraBuffer._LightIndexBuffer = Shader.PropertyToID("_LightIndexBuffer");
|
|
|
|
int maxVisibleLocalLights = renderer.maxVisibleLocalLights;
|
|
m_LightPositions = new Vector4[maxVisibleLocalLights];
|
|
m_LightColors = new Vector4[maxVisibleLocalLights];
|
|
m_LightDistanceAttenuations = new Vector4[maxVisibleLocalLights];
|
|
m_LightSpotDirections = new Vector4[maxVisibleLocalLights];
|
|
m_LightSpotAttenuations = new Vector4[maxVisibleLocalLights];
|
|
|
|
m_ColorFormat = RenderTextureFormat.Default;
|
|
m_BlitMaterial = renderer.GetMaterial(MaterialHandles.Blit);
|
|
m_ErrorMaterial = renderer.GetMaterial(MaterialHandles.Error);
|
|
|
|
// Copy Depth Pass
|
|
m_DepthCopyMaterial = renderer.GetMaterial(MaterialHandles.DepthCopy);
|
|
|
|
// Copy Opaque Color Pass
|
|
m_SamplingMaterial = renderer.GetMaterial(MaterialHandles.Sampling);
|
|
m_SampleOffsetShaderHandle = Shader.PropertyToID("_SampleOffset");
|
|
}
|
|
|
|
public override void Setup(CommandBuffer cmd, RenderTextureDescriptor baseDescriptor, int[] colorAttachmentHandles, int depthAttachmentHandle = -1, int samples = 1)
|
|
{
|
|
base.Setup(cmd, baseDescriptor, colorAttachmentHandles, depthAttachmentHandle, samples);
|
|
|
|
m_ColorFormat = baseDescriptor.colorFormat;
|
|
if (colorAttachmentHandle != -1)
|
|
{
|
|
var descriptor = baseDescriptor;
|
|
descriptor.depthBufferBits = k_DepthStencilBufferBits; // TODO: does the color RT always need depth?
|
|
descriptor.sRGB = true;
|
|
descriptor.msaaSamples = samples;
|
|
cmd.GetTemporaryRT(colorAttachmentHandle, descriptor, FilterMode.Bilinear);
|
|
}
|
|
|
|
if (depthAttachmentHandle != -1)
|
|
{
|
|
var descriptor = baseDescriptor;
|
|
descriptor.colorFormat = RenderTextureFormat.Depth;
|
|
descriptor.depthBufferBits = k_DepthStencilBufferBits;
|
|
descriptor.msaaSamples = samples;
|
|
descriptor.bindMS = samples > 1;
|
|
cmd.GetTemporaryRT(depthAttachmentHandle, descriptor, FilterMode.Point);
|
|
}
|
|
}
|
|
|
|
public override void Execute(ref ScriptableRenderContext context, ref CullResults cullResults, ref RenderingData renderingData)
|
|
{
|
|
Camera camera = renderingData.cameraData.camera;
|
|
bool dynamicBatching = renderingData.supportsDynamicBatching;
|
|
SetupShaderConstants(ref context, ref renderingData.cameraData, ref renderingData.lightData, ref renderingData.shadowData);
|
|
RendererConfiguration rendererConfiguration = GetRendererConfiguration(renderingData.lightData.totalAdditionalLightsCount);
|
|
|
|
if (renderingData.cameraData.isStereoEnabled)
|
|
context.StartMultiEye(camera);
|
|
|
|
RenderOpaques(ref context, ref cullResults, ref renderingData.cameraData, rendererConfiguration, dynamicBatching);
|
|
|
|
if (renderingData.cameraData.postProcessEnabled &&
|
|
renderingData.cameraData.postProcessLayer.HasOpaqueOnlyEffects(renderer.postProcessRenderContext))
|
|
OpaquePostProcessSubPass(ref context, ref renderingData.cameraData);
|
|
|
|
if (depthAttachmentHandle != -1)
|
|
CopyDepthSubPass(ref context, ref renderingData.cameraData);
|
|
|
|
if (renderingData.cameraData.requiresOpaqueTexture)
|
|
CopyColorSubpass(ref context, ref renderingData.cameraData);
|
|
|
|
RenderTransparents(ref context, ref cullResults, ref renderingData.cameraData, rendererConfiguration, dynamicBatching);
|
|
|
|
if (renderingData.cameraData.postProcessEnabled)
|
|
PostProcessPass(ref context, ref renderingData.cameraData);
|
|
else if (!renderingData.cameraData.isOffscreenRender && colorAttachmentHandle != -1)
|
|
FinalBlitPass(ref context, ref renderingData.cameraData);
|
|
|
|
if (renderingData.cameraData.isStereoEnabled)
|
|
{
|
|
context.StopMultiEye(camera);
|
|
context.StereoEndRender(camera);
|
|
}
|
|
}
|
|
|
|
RendererConfiguration GetRendererConfiguration(int localLightsCount)
|
|
{
|
|
RendererConfiguration configuration = RendererConfiguration.PerObjectReflectionProbes | RendererConfiguration.PerObjectLightmaps | RendererConfiguration.PerObjectLightProbe;
|
|
if (localLightsCount > 0)
|
|
{
|
|
if (renderer.useComputeBufferForPerObjectLightIndices)
|
|
configuration |= RendererConfiguration.ProvideLightIndices;
|
|
else
|
|
configuration |= RendererConfiguration.PerObjectLightIndices8;
|
|
}
|
|
|
|
return configuration;
|
|
}
|
|
|
|
void SetupShaderConstants(ref ScriptableRenderContext context, ref CameraData cameraData, ref LightData lightData, ref ShadowData shadowData)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get("SetupShaderConstants");
|
|
SetupShaderLightConstants(cmd, ref lightData);
|
|
SetShaderKeywords(cmd, ref cameraData, ref lightData, ref shadowData);
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
void SetupShaderLightConstants(CommandBuffer cmd, ref LightData lightData)
|
|
{
|
|
// Clear to default all light constant data
|
|
for (int i = 0; i < renderer.maxVisibleLocalLights; ++i)
|
|
InitializeLightConstants(lightData.visibleLights, -1, out m_LightPositions[i],
|
|
out m_LightColors[i],
|
|
out m_LightDistanceAttenuations[i],
|
|
out m_LightSpotDirections[i],
|
|
out m_LightSpotAttenuations[i]);
|
|
|
|
m_MixedLightingSetup = MixedLightingSetup.None;
|
|
|
|
// Main light has an optimized shader path for main light. This will benefit games that only care about a single light.
|
|
// Lightweight pipeline also supports only a single shadow light, if available it will be the main light.
|
|
SetupMainLightConstants(cmd, ref lightData);
|
|
SetupAdditionalLightConstants(cmd, ref lightData);
|
|
}
|
|
|
|
void SetupMainLightConstants(CommandBuffer cmd, ref LightData lightData)
|
|
{
|
|
Vector4 lightPos, lightColor, lightDistanceAttenuation, lightSpotDir, lightSpotAttenuation;
|
|
List<VisibleLight> lights = lightData.visibleLights;
|
|
InitializeLightConstants(lightData.visibleLights, lightData.mainLightIndex, out lightPos, out lightColor, out lightDistanceAttenuation, out lightSpotDir, out lightSpotAttenuation);
|
|
|
|
if (lightData.mainLightIndex >= 0)
|
|
{
|
|
VisibleLight mainLight = lights[lightData.mainLightIndex];
|
|
Light mainLightRef = mainLight.light;
|
|
|
|
if (LightweightPipeline.IsSupportedCookieType(mainLight.lightType) && mainLightRef.cookie != null)
|
|
{
|
|
Matrix4x4 lightCookieMatrix;
|
|
LightweightPipeline.GetLightCookieMatrix(mainLight, out lightCookieMatrix);
|
|
cmd.SetGlobalTexture(PerCameraBuffer._MainLightCookie, mainLightRef.cookie);
|
|
cmd.SetGlobalMatrix(PerCameraBuffer._WorldToLight, lightCookieMatrix);
|
|
}
|
|
}
|
|
|
|
cmd.SetGlobalVector(PerCameraBuffer._MainLightPosition, new Vector4(lightPos.x, lightPos.y, lightPos.z, lightDistanceAttenuation.w));
|
|
cmd.SetGlobalVector(PerCameraBuffer._MainLightColor, lightColor);
|
|
}
|
|
|
|
void SetupAdditionalLightConstants(CommandBuffer cmd, ref LightData lightData)
|
|
{
|
|
int maxVisibleLocalLights = renderer.maxVisibleLocalLights;
|
|
List<VisibleLight> lights = lightData.visibleLights;
|
|
if (lightData.totalAdditionalLightsCount > 0)
|
|
{
|
|
int localLightsCount = 0;
|
|
for (int i = 0; i < lights.Count && localLightsCount < maxVisibleLocalLights; ++i)
|
|
{
|
|
VisibleLight light = lights[i];
|
|
if (light.lightType != LightType.Directional)
|
|
{
|
|
InitializeLightConstants(lights, i, out m_LightPositions[localLightsCount],
|
|
out m_LightColors[localLightsCount],
|
|
out m_LightDistanceAttenuations[localLightsCount],
|
|
out m_LightSpotDirections[localLightsCount],
|
|
out m_LightSpotAttenuations[localLightsCount]);
|
|
localLightsCount++;
|
|
}
|
|
}
|
|
|
|
cmd.SetGlobalVector(PerCameraBuffer._AdditionalLightCount, new Vector4(lightData.pixelAdditionalLightsCount,
|
|
lightData.totalAdditionalLightsCount, 0.0f, 0.0f));
|
|
|
|
// if not using a compute buffer, engine will set indices in 2 vec4 constants
|
|
// unity_4LightIndices0 and unity_4LightIndices1
|
|
if (renderer.perObjectLightIndices != null)
|
|
cmd.SetGlobalBuffer("_LightIndexBuffer", renderer.perObjectLightIndices);
|
|
}
|
|
else
|
|
{
|
|
cmd.SetGlobalVector(PerCameraBuffer._AdditionalLightCount, Vector4.zero);
|
|
}
|
|
|
|
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightPosition, m_LightPositions);
|
|
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightColor, m_LightColors);
|
|
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightDistanceAttenuation, m_LightDistanceAttenuations);
|
|
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightSpotDir, m_LightSpotDirections);
|
|
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightSpotAttenuation, m_LightSpotAttenuations);
|
|
}
|
|
|
|
ClearFlag GetCameraClearFlag(Camera camera)
|
|
{
|
|
ClearFlag clearFlag = ClearFlag.None;
|
|
CameraClearFlags cameraClearFlags = camera.clearFlags;
|
|
if (cameraClearFlags != CameraClearFlags.Nothing)
|
|
{
|
|
clearFlag |= ClearFlag.Depth;
|
|
if (cameraClearFlags == CameraClearFlags.Color || cameraClearFlags == CameraClearFlags.Skybox)
|
|
clearFlag |= ClearFlag.Color;
|
|
}
|
|
|
|
return clearFlag;
|
|
}
|
|
|
|
void SetShaderKeywords(CommandBuffer cmd, ref CameraData cameraData, ref LightData lightData, ref ShadowData shadowData)
|
|
{
|
|
int vertexLightsCount = lightData.totalAdditionalLightsCount - lightData.pixelAdditionalLightsCount;
|
|
|
|
CoreUtils.SetKeyword(cmd, LightweightKeywords.AdditionalLightsText, lightData.totalAdditionalLightsCount > 0);
|
|
CoreUtils.SetKeyword(cmd, LightweightKeywords.MixedLightingSubtractiveText, m_MixedLightingSetup == MixedLightingSetup.Subtractive);
|
|
CoreUtils.SetKeyword(cmd, LightweightKeywords.VertexLightsText, vertexLightsCount > 0);
|
|
|
|
// TODO: We have to discuss cookie approach on LWRP.
|
|
// CoreUtils.SetKeyword(cmd, LightweightKeywords.MainLightCookieText, mainLightIndex != -1 && LightweightUtils.IsSupportedCookieType(visibleLights[mainLightIndex].lightType) && visibleLights[mainLightIndex].light.cookie != null);
|
|
|
|
LightShadows directionalShadowQuality = shadowData.renderedDirectionalShadowQuality;
|
|
LightShadows localShadowQuality = shadowData.renderedLocalShadowQuality;
|
|
|
|
// Currently shadow filtering keyword is shared between local and directional shadows.
|
|
bool hasSoftShadows = (directionalShadowQuality == LightShadows.Soft || localShadowQuality == LightShadows.Soft) &&
|
|
shadowData.supportsSoftShadows;
|
|
|
|
CoreUtils.SetKeyword(cmd, LightweightKeywords.DirectionalShadowsText, directionalShadowQuality != LightShadows.None);
|
|
CoreUtils.SetKeyword(cmd, LightweightKeywords.LocalShadowsText, localShadowQuality != LightShadows.None);
|
|
CoreUtils.SetKeyword(cmd, LightweightKeywords.SoftShadowsText, hasSoftShadows);
|
|
|
|
// TODO: Remove this. legacy particles support will be removed from Unity in 2018.3. This should be a shader_feature instead with prop exposed in the Standard particles shader.
|
|
CoreUtils.SetKeyword(cmd, "SOFTPARTICLES_ON", cameraData.requiresSoftParticles);
|
|
}
|
|
|
|
void SetRenderTarget(CommandBuffer cmd, RenderBufferLoadAction loadOp, RenderBufferStoreAction storeOp, ClearFlag clearFlag, Color clearColor)
|
|
{
|
|
if (colorAttachmentHandle != -1)
|
|
{
|
|
if (depthAttachmentHandle != -1)
|
|
SetRenderTarget(cmd, GetSurface(colorAttachmentHandle), loadOp, storeOp, GetSurface(depthAttachmentHandle), loadOp, storeOp, clearFlag, clearColor);
|
|
else
|
|
SetRenderTarget(cmd, GetSurface(colorAttachmentHandle), loadOp, storeOp, clearFlag, clearColor);
|
|
}
|
|
else
|
|
{
|
|
SetRenderTarget(cmd, BuiltinRenderTextureType.CameraTarget, loadOp, storeOp, clearFlag, clearColor);
|
|
}
|
|
}
|
|
|
|
void RenderOpaques(ref ScriptableRenderContext context, ref CullResults cullResults, ref CameraData cameraData, RendererConfiguration rendererConfiguration, bool dynamicBatching)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get(k_RenderOpaquesTag);
|
|
using (new ProfilingSample(cmd, k_SetupRenderTargetTag))
|
|
{
|
|
Camera camera = cameraData.camera;
|
|
ClearFlag clearFlag = GetCameraClearFlag(camera);
|
|
SetRenderTarget(cmd, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store, clearFlag, CoreUtils.ConvertSRGBToActiveColorSpace(camera.backgroundColor));
|
|
|
|
// If rendering to an intermediate RT we resolve viewport on blit due to offset not being supported
|
|
// while rendering to a RT.
|
|
if (colorAttachmentHandle == -1 && cameraData.isDefaultViewport)
|
|
cmd.SetViewport(camera.pixelRect);
|
|
|
|
context.ExecuteCommandBuffer(cmd);
|
|
cmd.Clear();
|
|
|
|
var drawSettings = CreateDrawRendererSettings(camera, SortFlags.CommonOpaque, rendererConfiguration, dynamicBatching);
|
|
context.DrawRenderers(cullResults.visibleRenderers, ref drawSettings, renderer.opaqueFilterSettings);
|
|
|
|
// Render objects that did not match any shader pass with error shader
|
|
RenderObjectsWithError(ref context, ref cullResults, camera, renderer.opaqueFilterSettings, SortFlags.None);
|
|
|
|
if (camera.clearFlags == CameraClearFlags.Skybox)
|
|
context.DrawSkybox(camera);
|
|
}
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
void RenderTransparents(ref ScriptableRenderContext context, ref CullResults cullResults, ref CameraData cameraData, RendererConfiguration rendererConfiguration, bool dynamicBatching)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get(k_RenderTransparentsTag);
|
|
using (new ProfilingSample(cmd, k_SetupRenderTargetTag))
|
|
{
|
|
Camera camera = cameraData.camera;
|
|
SetRenderTarget(cmd, RenderBufferLoadAction.Load, RenderBufferStoreAction.Store, ClearFlag.None, Color.black);
|
|
context.ExecuteCommandBuffer(cmd);
|
|
cmd.Clear();
|
|
|
|
var drawSettings = CreateDrawRendererSettings(camera, SortFlags.CommonTransparent, rendererConfiguration, dynamicBatching);
|
|
context.DrawRenderers(cullResults.visibleRenderers, ref drawSettings, renderer.transparentFilterSettings);
|
|
|
|
// Render objects that did not match any shader pass with error shader
|
|
RenderObjectsWithError(ref context, ref cullResults, camera, renderer.transparentFilterSettings, SortFlags.None);
|
|
}
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
void FinalBlitPass(ref ScriptableRenderContext context, ref CameraData cameraData)
|
|
{
|
|
Material material = cameraData.isStereoEnabled ? null : m_BlitMaterial;
|
|
RenderTargetIdentifier sourceRT = GetSurface(colorAttachmentHandle);
|
|
|
|
CommandBuffer cmd = CommandBufferPool.Get("Final Blit Pass");
|
|
cmd.SetGlobalTexture("_BlitTex", sourceRT);
|
|
|
|
if (!cameraData.isDefaultViewport)
|
|
{
|
|
SetRenderTarget(cmd, BuiltinRenderTextureType.CameraTarget, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store, ClearFlag.All, Color.black);
|
|
cmd.SetViewProjectionMatrices(Matrix4x4.identity, Matrix4x4.identity);
|
|
cmd.SetViewport(cameraData.camera.pixelRect);
|
|
LightweightPipeline.DrawFullScreen(cmd, material);
|
|
}
|
|
else
|
|
{
|
|
cmd.Blit(GetSurface(colorAttachmentHandle), BuiltinRenderTextureType.CameraTarget, material);
|
|
}
|
|
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
void InitializeLightConstants(List<VisibleLight> lights, int lightIndex, out Vector4 lightPos, out Vector4 lightColor, out Vector4 lightDistanceAttenuation, out Vector4 lightSpotDir,
|
|
out Vector4 lightSpotAttenuation)
|
|
{
|
|
lightPos = k_DefaultLightPosition;
|
|
lightColor = k_DefaultLightColor;
|
|
lightDistanceAttenuation = k_DefaultLightSpotAttenuation;
|
|
lightSpotDir = k_DefaultLightSpotDirection;
|
|
lightSpotAttenuation = k_DefaultLightAttenuation;
|
|
|
|
// When no lights are visible, main light will be set to -1.
|
|
// In this case we initialize it to default values and return
|
|
if (lightIndex < 0)
|
|
return;
|
|
|
|
VisibleLight lightData = lights[lightIndex];
|
|
if (lightData.lightType == LightType.Directional)
|
|
{
|
|
Vector4 dir = -lightData.localToWorld.GetColumn(2);
|
|
lightPos = new Vector4(dir.x, dir.y, dir.z, 0.0f);
|
|
}
|
|
else
|
|
{
|
|
Vector4 pos = lightData.localToWorld.GetColumn(3);
|
|
lightPos = new Vector4(pos.x, pos.y, pos.z, 1.0f);
|
|
}
|
|
|
|
// VisibleLight.finalColor already returns color in active color space
|
|
lightColor = lightData.finalColor;
|
|
|
|
// Directional Light attenuation is initialize so distance attenuation always be 1.0
|
|
if (lightData.lightType != LightType.Directional)
|
|
{
|
|
// Light attenuation in lightweight matches the unity vanilla one.
|
|
// attenuation = 1.0 / 1.0 + distanceToLightSqr * quadraticAttenuation
|
|
// then a smooth factor is applied to linearly fade attenuation to light range
|
|
// the attenuation smooth factor starts having effect at 80% of light range
|
|
// smoothFactor = (lightRangeSqr - distanceToLightSqr) / (lightRangeSqr - fadeStartDistanceSqr)
|
|
// We rewrite smoothFactor to be able to pre compute the constant terms below and apply the smooth factor
|
|
// with one MAD instruction
|
|
// smoothFactor = distanceSqr * (1.0 / (fadeDistanceSqr - lightRangeSqr)) + (-lightRangeSqr / (fadeDistanceSqr - lightRangeSqr)
|
|
// distanceSqr * oneOverFadeRangeSqr + lightRangeSqrOverFadeRangeSqr
|
|
float lightRangeSqr = lightData.range * lightData.range;
|
|
float fadeStartDistanceSqr = 0.8f * 0.8f * lightRangeSqr;
|
|
float fadeRangeSqr = (fadeStartDistanceSqr - lightRangeSqr);
|
|
float oneOverFadeRangeSqr = 1.0f / fadeRangeSqr;
|
|
float lightRangeSqrOverFadeRangeSqr = -lightRangeSqr / fadeRangeSqr;
|
|
float quadAtten = 25.0f / lightRangeSqr;
|
|
lightDistanceAttenuation = new Vector4(quadAtten, oneOverFadeRangeSqr, lightRangeSqrOverFadeRangeSqr, 1.0f);
|
|
}
|
|
|
|
if (lightData.lightType == LightType.Spot)
|
|
{
|
|
Vector4 dir = lightData.localToWorld.GetColumn(2);
|
|
lightSpotDir = new Vector4(-dir.x, -dir.y, -dir.z, 0.0f);
|
|
|
|
// Spot Attenuation with a linear falloff can be defined as
|
|
// (SdotL - cosOuterAngle) / (cosInnerAngle - cosOuterAngle)
|
|
// This can be rewritten as
|
|
// invAngleRange = 1.0 / (cosInnerAngle - cosOuterAngle)
|
|
// SdotL * invAngleRange + (-cosOuterAngle * invAngleRange)
|
|
// If we precompute the terms in a MAD instruction
|
|
float cosOuterAngle = Mathf.Cos(Mathf.Deg2Rad * lightData.spotAngle * 0.5f);
|
|
// We neeed to do a null check for particle lights
|
|
// This should be changed in the future
|
|
// Particle lights will use an inline function
|
|
float cosInnerAngle;
|
|
if (lightData.light != null)
|
|
cosInnerAngle = Mathf.Cos(LightmapperUtils.ExtractInnerCone(lightData.light) * 0.5f);
|
|
else
|
|
cosInnerAngle = Mathf.Cos((2.0f * Mathf.Atan(Mathf.Tan(lightData.spotAngle * 0.5f * Mathf.Deg2Rad) * (64.0f - 18.0f) / 64.0f)) * 0.5f);
|
|
float smoothAngleRange = Mathf.Max(0.001f, cosInnerAngle - cosOuterAngle);
|
|
float invAngleRange = 1.0f / smoothAngleRange;
|
|
float add = -cosOuterAngle * invAngleRange;
|
|
lightSpotAttenuation = new Vector4(invAngleRange, add, 0.0f);
|
|
}
|
|
|
|
Light light = lightData.light;
|
|
|
|
// TODO: Add support to shadow mask
|
|
if (light != null && light.bakingOutput.mixedLightingMode == MixedLightingMode.Subtractive && light.bakingOutput.lightmapBakeType == LightmapBakeType.Mixed)
|
|
{
|
|
if (m_MixedLightingSetup == MixedLightingSetup.None && lightData.light.shadows != LightShadows.None)
|
|
{
|
|
m_MixedLightingSetup = MixedLightingSetup.Subtractive;
|
|
lightDistanceAttenuation.w = 0.0f;
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: move to postfx pass
|
|
void PostProcessPass(ref ScriptableRenderContext context, ref CameraData cameraData)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get("Render PostProcess Effects");
|
|
LightweightPipeline.RenderPostProcess(cmd, renderer.postProcessRenderContext, ref cameraData, m_ColorFormat, GetSurface(colorAttachmentHandle), BuiltinRenderTextureType.CameraTarget, false);
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
[Conditional("DEVELOPMENT_BUILD"), Conditional("UNITY_EDITOR")]
|
|
void RenderObjectsWithError(ref ScriptableRenderContext context, ref CullResults cullResults, Camera camera, FilterRenderersSettings filterSettings, SortFlags sortFlags)
|
|
{
|
|
if (m_ErrorMaterial != null)
|
|
{
|
|
DrawRendererSettings errorSettings = new DrawRendererSettings(camera, m_LegacyShaderPassNames[0]);
|
|
for (int i = 1; i < m_LegacyShaderPassNames.Count; ++i)
|
|
errorSettings.SetShaderPassName(i, m_LegacyShaderPassNames[i]);
|
|
|
|
errorSettings.sorting.flags = sortFlags;
|
|
errorSettings.rendererConfiguration = RendererConfiguration.None;
|
|
errorSettings.SetOverrideMaterial(m_ErrorMaterial, 0);
|
|
context.DrawRenderers(cullResults.visibleRenderers, ref errorSettings, filterSettings);
|
|
}
|
|
}
|
|
|
|
void OpaquePostProcessSubPass(ref ScriptableRenderContext context, ref CameraData cameraData)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get("Render Opaque PostProcess Effects");
|
|
|
|
RenderTargetIdentifier source = GetSurface(colorAttachmentHandle);
|
|
LightweightPipeline.RenderPostProcess(cmd, renderer.postProcessRenderContext, ref cameraData, m_ColorFormat, source, GetSurface(colorAttachmentHandle), true);
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
void CopyDepthSubPass(ref ScriptableRenderContext context, ref CameraData cameraData)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get("Depth Copy");
|
|
RenderTargetIdentifier depthSurface = GetSurface(depthAttachmentHandle);
|
|
RenderTargetIdentifier copyDepthSurface = GetSurface(RenderTargetHandles.DepthTexture);
|
|
|
|
RenderTextureDescriptor descriptor = renderer.CreateRTDesc(ref cameraData);
|
|
descriptor.colorFormat = RenderTextureFormat.Depth;
|
|
descriptor.depthBufferBits = k_DepthStencilBufferBits;
|
|
descriptor.msaaSamples = 1;
|
|
descriptor.bindMS = false;
|
|
cmd.GetTemporaryRT(RenderTargetHandles.DepthTexture, descriptor, FilterMode.Point);
|
|
|
|
if (cameraData.msaaSamples > 1)
|
|
{
|
|
cmd.DisableShaderKeyword(LightweightKeywords.DepthNoMsaa);
|
|
if (cameraData.msaaSamples == 4)
|
|
{
|
|
cmd.DisableShaderKeyword(LightweightKeywords.DepthMsaa2);
|
|
cmd.EnableShaderKeyword(LightweightKeywords.DepthMsaa4);
|
|
}
|
|
else
|
|
{
|
|
cmd.EnableShaderKeyword(LightweightKeywords.DepthMsaa2);
|
|
cmd.DisableShaderKeyword(LightweightKeywords.DepthMsaa4);
|
|
}
|
|
cmd.Blit(depthSurface, copyDepthSurface, m_DepthCopyMaterial);
|
|
}
|
|
else
|
|
{
|
|
cmd.EnableShaderKeyword(LightweightKeywords.DepthNoMsaa);
|
|
cmd.DisableShaderKeyword(LightweightKeywords.DepthMsaa2);
|
|
cmd.DisableShaderKeyword(LightweightKeywords.DepthMsaa4);
|
|
LightweightPipeline.CopyTexture(cmd, depthSurface, copyDepthSurface, m_DepthCopyMaterial);
|
|
}
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
|
|
void CopyColorSubpass(ref ScriptableRenderContext context, ref CameraData cameraData)
|
|
{
|
|
CommandBuffer cmd = CommandBufferPool.Get("Copy Opaque Color");
|
|
Downsampling downsampling = cameraData.opaqueTextureDownsampling;
|
|
float opaqueScaler = m_OpaqueScalerValues[(int)downsampling];
|
|
|
|
RenderTextureDescriptor opaqueDesc = renderer.CreateRTDesc(ref cameraData, opaqueScaler);
|
|
RenderTargetIdentifier colorRT = GetSurface(colorAttachmentHandle);
|
|
RenderTargetIdentifier opaqueColorRT = GetSurface(RenderTargetHandles.OpaqueColor);
|
|
|
|
cmd.GetTemporaryRT(RenderTargetHandles.OpaqueColor, opaqueDesc, cameraData.opaqueTextureDownsampling == Downsampling.None ? FilterMode.Point : FilterMode.Bilinear);
|
|
switch (downsampling)
|
|
{
|
|
case Downsampling.None:
|
|
cmd.Blit(colorRT, opaqueColorRT);
|
|
break;
|
|
case Downsampling._2xBilinear:
|
|
cmd.Blit(colorRT, opaqueColorRT);
|
|
break;
|
|
case Downsampling._4xBox:
|
|
m_SamplingMaterial.SetFloat(m_SampleOffsetShaderHandle, 2);
|
|
cmd.Blit(colorRT, opaqueColorRT, m_SamplingMaterial, 0);
|
|
break;
|
|
case Downsampling._4xBilinear:
|
|
cmd.Blit(colorRT, opaqueColorRT);
|
|
break;
|
|
}
|
|
|
|
context.ExecuteCommandBuffer(cmd);
|
|
CommandBufferPool.Release(cmd);
|
|
}
|
|
}
|
|
}
|