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
566 行
24 KiB
566 行
24 KiB
using System.Collections.Generic;
|
|
using UnityEngine.Experimental.Rendering;
|
|
using UnityEngine.Rendering;
|
|
|
|
namespace UnityEngine.Experimental.Rendering.HDPipeline
|
|
{
|
|
public class DecalSystem
|
|
{
|
|
public const int kInvalidIndex = -1;
|
|
|
|
public class DecalHandle
|
|
{
|
|
public DecalHandle(int index, int materialID)
|
|
{
|
|
m_MaterialID = materialID;
|
|
m_Index = index;
|
|
}
|
|
|
|
public static bool IsValid(DecalHandle handle)
|
|
{
|
|
if (handle == null)
|
|
return false;
|
|
if (handle.m_Index == kInvalidIndex)
|
|
return false;
|
|
return true;
|
|
}
|
|
public int m_MaterialID; // identifies decal set
|
|
public int m_Index; // identifies decal within the set
|
|
}
|
|
|
|
static DecalSystem m_Instance;
|
|
static public DecalSystem instance
|
|
{
|
|
get
|
|
{
|
|
if (m_Instance == null)
|
|
m_Instance = new DecalSystem();
|
|
return m_Instance;
|
|
}
|
|
}
|
|
|
|
private const int kDefaultDrawDistance = 1000;
|
|
public int DrawDistance
|
|
{
|
|
get
|
|
{
|
|
HDRenderPipelineAsset hdrp = GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset;
|
|
if (hdrp != null)
|
|
{
|
|
return hdrp.renderPipelineSettings.decalSettings.drawDistance;
|
|
}
|
|
return kDefaultDrawDistance;
|
|
}
|
|
}
|
|
|
|
public TextureCache2D TextureAtlas
|
|
{
|
|
get
|
|
{
|
|
if (m_DecalAtlas == null)
|
|
{
|
|
m_DecalAtlas = new TextureCache2D("DecalAtlas");
|
|
m_DecalAtlas.AllocTextureArray(2048, 128, 128, TextureFormat.RGBA32, true);
|
|
}
|
|
return m_DecalAtlas;
|
|
}
|
|
}
|
|
|
|
public Camera CurrentCamera
|
|
{
|
|
get
|
|
{
|
|
return m_Camera;
|
|
}
|
|
set
|
|
{
|
|
m_Camera = value;
|
|
}
|
|
}
|
|
|
|
private static MaterialPropertyBlock m_PropertyBlock = new MaterialPropertyBlock();
|
|
|
|
private const int kDecalBlockSize = 128;
|
|
|
|
// to work on Vulkan Mobile?
|
|
// Core\CoreRP\ShaderLibrary\UnityInstancing.hlsl
|
|
// #if defined(SHADER_API_VULKAN) && defined(SHADER_API_MOBILE)
|
|
// #define UNITY_INSTANCED_ARRAY_SIZE 250
|
|
private const int kDrawIndexedBatchSize = 250;
|
|
|
|
// cube mesh bounds for decal
|
|
static Vector4 kMin = new Vector4(-0.5f, -1.0f, -0.5f, 1.0f);
|
|
static Vector4 kMax = new Vector4( 0.5f, 0.0f, 0.5f, 1.0f);
|
|
|
|
static public Mesh m_DecalMesh = null;
|
|
|
|
// clustered draw data
|
|
static public DecalData[] m_DecalDatas = new DecalData[kDecalBlockSize];
|
|
static public SFiniteLightBound[] m_Bounds = new SFiniteLightBound[kDecalBlockSize];
|
|
static public LightVolumeData[] m_LightVolumes = new LightVolumeData[kDecalBlockSize];
|
|
static public int m_DecalDatasCount = 0;
|
|
|
|
static public float[] m_BoundingDistances = new float[1];
|
|
|
|
private Dictionary<int, DecalSet> m_DecalSets = new Dictionary<int, DecalSet>();
|
|
private TextureCache2D m_DecalAtlas = null;
|
|
|
|
// current camera
|
|
private Camera m_Camera;
|
|
|
|
static public int m_DecalsVisibleThisFrame = 0;
|
|
|
|
private class DecalSet
|
|
{
|
|
private void InitializeMaterialValues()
|
|
{
|
|
m_DiffuseTexture = m_Material.GetTexture("_BaseColorMap");
|
|
m_NormalTexture = m_Material.GetTexture("_NormalMap");
|
|
m_MaskTexture = m_Material.GetTexture("_MaskMap");
|
|
m_Blend = m_Material.GetFloat("_DecalBlend");
|
|
}
|
|
|
|
public DecalSet(Material material)
|
|
{
|
|
m_Material = material;
|
|
InitializeMaterialValues();
|
|
}
|
|
|
|
private BoundingSphere GetDecalProjectBoundingSphere(Matrix4x4 decalToWorld)
|
|
{
|
|
Vector4 min = new Vector4();
|
|
Vector4 max = new Vector4();
|
|
min = decalToWorld * kMin;
|
|
max = decalToWorld * kMax;
|
|
BoundingSphere res = new BoundingSphere();
|
|
res.position = (max + min) / 2;
|
|
res.radius = ((Vector3) (max - min)).magnitude / 2;
|
|
return res;
|
|
}
|
|
|
|
public void UpdateCachedData(Transform transform, float drawDistance, float fadeScale, DecalHandle handle)
|
|
{
|
|
int index = handle.m_Index;
|
|
m_CachedDecalToWorld[index] = transform.localToWorldMatrix;
|
|
|
|
Matrix4x4 decalRotation = Matrix4x4.Rotate(transform.rotation);
|
|
// z/y axis swap for normal to decal space, Unity is column major
|
|
float y0 = decalRotation.m01;
|
|
float y1 = decalRotation.m11;
|
|
float y2 = decalRotation.m21;
|
|
decalRotation.m01 = decalRotation.m02;
|
|
decalRotation.m11 = decalRotation.m12;
|
|
decalRotation.m21 = decalRotation.m22;
|
|
decalRotation.m02 = y0;
|
|
decalRotation.m12 = y1;
|
|
decalRotation.m22 = y2;
|
|
|
|
m_CachedNormalToWorld[index] = decalRotation;
|
|
// draw distance can't be more than global draw distance
|
|
m_CachedDrawDistances[index].x = drawDistance < instance.DrawDistance
|
|
? drawDistance
|
|
: instance.DrawDistance;
|
|
m_CachedDrawDistances[index].y = fadeScale;
|
|
m_BoundingSpheres[index] = GetDecalProjectBoundingSphere(m_CachedDecalToWorld[index]);
|
|
}
|
|
|
|
public DecalHandle AddDecal(Transform transform, float drawDistance, float fadeScale, int materialID)
|
|
{
|
|
// increase array size if no space left
|
|
if (m_DecalsCount == m_Handles.Length)
|
|
{
|
|
DecalHandle[] newHandles = new DecalHandle[m_DecalsCount + kDecalBlockSize];
|
|
BoundingSphere[] newSpheres = new BoundingSphere[m_DecalsCount + kDecalBlockSize];
|
|
Matrix4x4[] newCachedTransforms = new Matrix4x4[m_DecalsCount + kDecalBlockSize];
|
|
Matrix4x4[] newCachedNormalToWorld = new Matrix4x4[m_DecalsCount + kDecalBlockSize];
|
|
Vector2[] newCachedDrawDistances = new Vector2[m_DecalsCount + kDecalBlockSize];
|
|
m_ResultIndices = new int[m_DecalsCount + kDecalBlockSize];
|
|
|
|
m_Handles.CopyTo(newHandles, 0);
|
|
m_BoundingSpheres.CopyTo(newSpheres, 0);
|
|
m_CachedDecalToWorld.CopyTo(newCachedTransforms, 0);
|
|
m_CachedNormalToWorld.CopyTo(newCachedNormalToWorld, 0);
|
|
m_CachedDrawDistances.CopyTo(newCachedDrawDistances, 0);
|
|
|
|
m_Handles = newHandles;
|
|
m_BoundingSpheres = newSpheres;
|
|
m_CachedDecalToWorld = newCachedTransforms;
|
|
m_CachedNormalToWorld = newCachedNormalToWorld;
|
|
m_CachedDrawDistances = newCachedDrawDistances;
|
|
}
|
|
|
|
DecalHandle decalHandle = new DecalHandle(m_DecalsCount, materialID);
|
|
m_Handles[m_DecalsCount] = decalHandle;
|
|
UpdateCachedData(transform, drawDistance, fadeScale, decalHandle);
|
|
m_DecalsCount++;
|
|
return decalHandle;
|
|
}
|
|
|
|
public void RemoveDecal(DecalHandle handle)
|
|
{
|
|
int removeAtIndex = handle.m_Index;
|
|
// replace with last decal in the list and update index
|
|
m_Handles[removeAtIndex] = m_Handles[m_DecalsCount - 1]; // move the last decal in list
|
|
m_Handles[removeAtIndex].m_Index = removeAtIndex;
|
|
m_Handles[m_DecalsCount - 1] = null;
|
|
|
|
// update cached data
|
|
m_BoundingSpheres[removeAtIndex] = m_BoundingSpheres[m_DecalsCount - 1];
|
|
m_CachedDecalToWorld[removeAtIndex] = m_CachedDecalToWorld[m_DecalsCount - 1];
|
|
m_CachedNormalToWorld[removeAtIndex] = m_CachedNormalToWorld[m_DecalsCount - 1];
|
|
m_CachedDrawDistances[removeAtIndex] = m_CachedDrawDistances[m_DecalsCount - 1];
|
|
m_DecalsCount--;
|
|
handle.m_Index = kInvalidIndex;
|
|
}
|
|
|
|
public void BeginCull()
|
|
{
|
|
if (m_CullingGroup != null)
|
|
{
|
|
Debug.LogError("Begin/EndCull() called out of sequence for decal projectors.");
|
|
}
|
|
|
|
// let the culling group code do some of the heavy lifting for global draw distance
|
|
m_BoundingDistances[0] = DecalSystem.instance.DrawDistance;
|
|
m_NumResults = 0;
|
|
m_CullingGroup = new CullingGroup();
|
|
m_CullingGroup.targetCamera = instance.CurrentCamera;
|
|
m_CullingGroup.SetDistanceReferencePoint( m_CullingGroup.targetCamera.transform.position);
|
|
m_CullingGroup.SetBoundingDistances(m_BoundingDistances);
|
|
m_CullingGroup.SetBoundingSpheres(m_BoundingSpheres);
|
|
m_CullingGroup.SetBoundingSphereCount(m_DecalsCount);
|
|
}
|
|
|
|
public int QueryCullResults()
|
|
{
|
|
m_NumResults = m_CullingGroup.QueryIndices(true, m_ResultIndices, 0);
|
|
return m_NumResults;
|
|
}
|
|
|
|
|
|
private void GetDecalVolumeDataAndBound(Matrix4x4 decalToWorld, Matrix4x4 worldToView)
|
|
{
|
|
var influenceX = decalToWorld.GetColumn(0) * 0.5f;
|
|
var influenceY = decalToWorld.GetColumn(1) * 0.5f;
|
|
var influenceZ = decalToWorld.GetColumn(2) * 0.5f;
|
|
var pos = decalToWorld.GetColumn(3) - influenceY; // decal cube mesh pivot is at 0,0,0, with bottom face at -1 on the y plane
|
|
|
|
Vector3 influenceExtents = new Vector3();
|
|
influenceExtents.x = influenceX.magnitude;
|
|
influenceExtents.y = influenceY.magnitude;
|
|
influenceExtents.z = influenceZ.magnitude;
|
|
|
|
// transform to camera space (becomes a left hand coordinate frame in Unity since Determinant(worldToView)<0)
|
|
var influenceRightVS = worldToView.MultiplyVector(influenceX / influenceExtents.x);
|
|
var influenceUpVS = worldToView.MultiplyVector(influenceY / influenceExtents.y);
|
|
var influenceForwardVS = worldToView.MultiplyVector(influenceZ / influenceExtents.z);
|
|
var influencePositionVS = worldToView.MultiplyPoint(pos); // place the mesh pivot in the center
|
|
|
|
m_Bounds[m_DecalDatasCount].center = influencePositionVS;
|
|
m_Bounds[m_DecalDatasCount].boxAxisX = influenceRightVS * influenceExtents.x;
|
|
m_Bounds[m_DecalDatasCount].boxAxisY = influenceUpVS * influenceExtents.y;
|
|
m_Bounds[m_DecalDatasCount].boxAxisZ = influenceForwardVS * influenceExtents.z;
|
|
m_Bounds[m_DecalDatasCount].scaleXY.Set(1.0f, 1.0f);
|
|
m_Bounds[m_DecalDatasCount].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)
|
|
m_LightVolumes[m_DecalDatasCount].lightCategory = (uint)LightCategory.Decal;
|
|
m_LightVolumes[m_DecalDatasCount].lightVolume = (uint)LightVolumeType.Box;
|
|
m_LightVolumes[m_DecalDatasCount].featureFlags = (uint)LightFeatureFlags.Env;
|
|
m_LightVolumes[m_DecalDatasCount].lightPos = influencePositionVS;
|
|
m_LightVolumes[m_DecalDatasCount].lightAxisX = influenceRightVS;
|
|
m_LightVolumes[m_DecalDatasCount].lightAxisY = influenceUpVS;
|
|
m_LightVolumes[m_DecalDatasCount].lightAxisZ = influenceForwardVS;
|
|
m_LightVolumes[m_DecalDatasCount].boxInnerDist = influenceExtents - LightLoop.k_BoxCullingExtentThreshold;
|
|
m_LightVolumes[m_DecalDatasCount].boxInvRange.Set(1.0f / LightLoop.k_BoxCullingExtentThreshold.x, 1.0f /LightLoop. k_BoxCullingExtentThreshold.y, 1.0f / LightLoop.k_BoxCullingExtentThreshold.z);
|
|
}
|
|
|
|
private void AssignCurrentBatches(ref Matrix4x4[] decalToWorldBatch, ref Matrix4x4[] normalToWorldBatch, int batchCount)
|
|
{
|
|
if (m_DecalToWorld.Count == batchCount)
|
|
{
|
|
decalToWorldBatch = new Matrix4x4[kDrawIndexedBatchSize];
|
|
m_DecalToWorld.Add(decalToWorldBatch);
|
|
normalToWorldBatch = new Matrix4x4[kDrawIndexedBatchSize];
|
|
m_NormalToWorld.Add(normalToWorldBatch);
|
|
}
|
|
else
|
|
{
|
|
decalToWorldBatch = m_DecalToWorld[batchCount];
|
|
normalToWorldBatch = m_NormalToWorld[batchCount];
|
|
}
|
|
}
|
|
|
|
public void CreateDrawData()
|
|
{
|
|
if (m_NumResults == 0)
|
|
return;
|
|
|
|
int instanceCount = 0;
|
|
int batchCount = 0;
|
|
Matrix4x4[] decalToWorldBatch = null;
|
|
Matrix4x4[] normalToWorldBatch = null;
|
|
|
|
AssignCurrentBatches(ref decalToWorldBatch, ref normalToWorldBatch, batchCount);
|
|
|
|
Vector3 cameraPos = instance.CurrentCamera.transform.position;
|
|
Matrix4x4 worldToView = LightLoop.WorldToCamera(instance.CurrentCamera);
|
|
for (int resultIndex = 0; resultIndex < m_NumResults; resultIndex++)
|
|
{
|
|
int decalIndex = m_ResultIndices[resultIndex];
|
|
// do additional culling based on individual decal draw distances
|
|
float distanceToDecal = (cameraPos - m_BoundingSpheres[decalIndex].position).magnitude;
|
|
float cullDistance = m_CachedDrawDistances[decalIndex].x + m_BoundingSpheres[decalIndex].radius;
|
|
if (distanceToDecal < cullDistance)
|
|
{
|
|
// d-buffer data
|
|
decalToWorldBatch[instanceCount] = m_CachedDecalToWorld[decalIndex];
|
|
normalToWorldBatch[instanceCount] = m_CachedNormalToWorld[decalIndex];
|
|
float fadeFactor = Mathf.Clamp((cullDistance - distanceToDecal) / (cullDistance * (1.0f - m_CachedDrawDistances[decalIndex].y)), 0.0f, 1.0f);
|
|
normalToWorldBatch[instanceCount].m03 = fadeFactor * m_Blend; // vector3 rotation matrix so bottom row and last column can be used for other data to save space
|
|
normalToWorldBatch[instanceCount].m13 = m_DiffuseTexIndex; // texture atlas indices needed for clustered
|
|
normalToWorldBatch[instanceCount].m23 = m_NormalTexIndex;
|
|
normalToWorldBatch[instanceCount].m33 = m_MaskTexIndex;
|
|
|
|
// clustered forward data
|
|
m_DecalDatas[m_DecalDatasCount].worldToDecal = decalToWorldBatch[instanceCount].inverse;
|
|
m_DecalDatas[m_DecalDatasCount].normalToWorld = normalToWorldBatch[instanceCount];
|
|
GetDecalVolumeDataAndBound(decalToWorldBatch[instanceCount], worldToView);
|
|
m_DecalDatasCount++;
|
|
|
|
instanceCount++;
|
|
if (instanceCount == kDrawIndexedBatchSize)
|
|
{
|
|
instanceCount = 0;
|
|
batchCount++;
|
|
AssignCurrentBatches(ref decalToWorldBatch, ref normalToWorldBatch, batchCount);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public void EndCull()
|
|
{
|
|
if (m_CullingGroup == null)
|
|
{
|
|
Debug.LogError("Begin/EndCull() called out of sequence for decal projectors.");
|
|
}
|
|
else
|
|
{
|
|
m_CullingGroup.Dispose();
|
|
m_CullingGroup = null;
|
|
}
|
|
}
|
|
|
|
void UpdateTextureCache(CommandBuffer cmd)
|
|
{
|
|
m_DiffuseTexIndex = (m_DiffuseTexture != null) ? instance.TextureAtlas.FetchSlice(cmd, m_DiffuseTexture) : -1;
|
|
m_NormalTexIndex = (m_NormalTexture != null) ? instance.TextureAtlas.FetchSlice(cmd, m_NormalTexture) : -1;
|
|
m_MaskTexIndex = (m_MaskTexture != null) ? instance.TextureAtlas.FetchSlice(cmd, m_MaskTexture) : -1;
|
|
}
|
|
|
|
public void RemoveFromTextureCache()
|
|
{
|
|
if (m_DiffuseTexture != null)
|
|
{
|
|
instance.TextureAtlas.RemoveEntryFromSlice(m_DiffuseTexture);
|
|
}
|
|
if (m_NormalTexture != null)
|
|
{
|
|
instance.TextureAtlas.RemoveEntryFromSlice(m_NormalTexture);
|
|
}
|
|
if (m_MaskTexture != null)
|
|
{
|
|
instance.TextureAtlas.RemoveEntryFromSlice(m_MaskTexture);
|
|
}
|
|
}
|
|
|
|
public void UpdateCachedMaterialData(CommandBuffer cmd)
|
|
{
|
|
InitializeMaterialValues(); // refresh in case they changed in the UI
|
|
UpdateTextureCache(cmd);
|
|
}
|
|
|
|
public void RenderIntoDBuffer(CommandBuffer cmd)
|
|
{
|
|
if(m_NumResults == 0)
|
|
return;
|
|
int batchIndex = 0;
|
|
int totalToDraw = m_NumResults;
|
|
for (; batchIndex < m_NumResults / kDrawIndexedBatchSize; batchIndex++)
|
|
{
|
|
m_PropertyBlock.SetMatrixArray(HDShaderIDs._NormalToWorldID, m_NormalToWorld[batchIndex]);
|
|
cmd.DrawMeshInstanced(m_DecalMesh, 0, KeyMaterial, 0, m_DecalToWorld[batchIndex], kDrawIndexedBatchSize, m_PropertyBlock);
|
|
totalToDraw -= kDrawIndexedBatchSize;
|
|
}
|
|
|
|
if(totalToDraw > 0)
|
|
{
|
|
m_PropertyBlock.SetMatrixArray(HDShaderIDs._NormalToWorldID, m_NormalToWorld[batchIndex]);
|
|
cmd.DrawMeshInstanced(m_DecalMesh, 0, KeyMaterial, 0, m_DecalToWorld[batchIndex], totalToDraw, m_PropertyBlock);
|
|
}
|
|
}
|
|
|
|
public Material KeyMaterial
|
|
{
|
|
get
|
|
{
|
|
return this.m_Material;
|
|
}
|
|
}
|
|
|
|
public int Count
|
|
{
|
|
get
|
|
{
|
|
return this.m_DecalsCount;
|
|
}
|
|
}
|
|
|
|
private List<Matrix4x4[]> m_DecalToWorld = new List<Matrix4x4[]>();
|
|
private List<Matrix4x4[]> m_NormalToWorld = new List<Matrix4x4[]>();
|
|
|
|
private CullingGroup m_CullingGroup = null;
|
|
private BoundingSphere[] m_BoundingSpheres = new BoundingSphere[kDecalBlockSize];
|
|
private DecalHandle[] m_Handles = new DecalHandle[kDecalBlockSize];
|
|
private int[] m_ResultIndices = new int[kDecalBlockSize];
|
|
private int m_NumResults = 0;
|
|
private int m_DecalsCount = 0;
|
|
private Matrix4x4[] m_CachedDecalToWorld = new Matrix4x4[kDecalBlockSize];
|
|
private Matrix4x4[] m_CachedNormalToWorld = new Matrix4x4[kDecalBlockSize];
|
|
private Vector2[] m_CachedDrawDistances = new Vector2[kDecalBlockSize]; // x - draw distance, y - fade scale
|
|
private Material m_Material;
|
|
private Texture m_DiffuseTexture = null;
|
|
private Texture m_NormalTexture = null;
|
|
private Texture m_MaskTexture = null;
|
|
private float m_Blend = 0;
|
|
private int m_DiffuseTexIndex = -1;
|
|
private int m_NormalTexIndex = -1;
|
|
private int m_MaskTexIndex = -1;
|
|
}
|
|
|
|
public DecalHandle AddDecal(Transform transform, float drawDistance, float fadeScale, Material material)
|
|
{
|
|
DecalSet decalSet = null;
|
|
int key = material.GetInstanceID();
|
|
if (!m_DecalSets.TryGetValue(key, out decalSet))
|
|
{
|
|
decalSet = new DecalSet(material);
|
|
m_DecalSets.Add(key, decalSet);
|
|
}
|
|
return decalSet.AddDecal(transform, drawDistance, fadeScale, key);
|
|
}
|
|
|
|
public void RemoveDecal(DecalHandle handle)
|
|
{
|
|
if (!DecalHandle.IsValid(handle))
|
|
return;
|
|
|
|
DecalSet decalSet = null;
|
|
int key = handle.m_MaterialID;
|
|
if (m_DecalSets.TryGetValue(key, out decalSet))
|
|
{
|
|
decalSet.RemoveDecal(handle);
|
|
if (decalSet.Count == 0)
|
|
{
|
|
decalSet.RemoveFromTextureCache();
|
|
m_DecalSets.Remove(key);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void UpdateCachedData(Transform transform, float drawDistance, float fadeScale, DecalHandle handle)
|
|
{
|
|
if(!DecalHandle.IsValid(handle))
|
|
return;
|
|
|
|
DecalSet decalSet = null;
|
|
int key = handle.m_MaterialID;
|
|
if (m_DecalSets.TryGetValue(key, out decalSet))
|
|
{
|
|
decalSet.UpdateCachedData(transform, drawDistance, fadeScale, handle);
|
|
}
|
|
}
|
|
|
|
public void BeginCull()
|
|
{
|
|
foreach (var pair in m_DecalSets)
|
|
{
|
|
pair.Value.BeginCull();
|
|
}
|
|
}
|
|
|
|
private int QueryCullResults()
|
|
{
|
|
int totalVisibleDecals = 0;
|
|
foreach (var pair in m_DecalSets)
|
|
{
|
|
totalVisibleDecals += pair.Value.QueryCullResults();
|
|
}
|
|
return totalVisibleDecals;
|
|
}
|
|
|
|
public void EndCull()
|
|
{
|
|
m_DecalsVisibleThisFrame = QueryCullResults();
|
|
foreach (var pair in m_DecalSets)
|
|
{
|
|
pair.Value.EndCull();
|
|
}
|
|
}
|
|
|
|
public void RenderIntoDBuffer(CommandBuffer cmd)
|
|
{
|
|
if (m_DecalMesh == null)
|
|
m_DecalMesh = CoreUtils.CreateCubeMesh(kMin, kMax);
|
|
|
|
foreach (var pair in m_DecalSets)
|
|
{
|
|
pair.Value.RenderIntoDBuffer(cmd);
|
|
}
|
|
}
|
|
|
|
public void SetAtlas(CommandBuffer cmd)
|
|
{
|
|
cmd.SetGlobalTexture(HDShaderIDs._DecalAtlasID, TextureAtlas.GetTexCache());
|
|
}
|
|
|
|
// updates textures, texture atlas indices and blend value
|
|
public void UpdateCachedMaterialData(CommandBuffer cmd)
|
|
{
|
|
foreach (var pair in m_DecalSets)
|
|
{
|
|
pair.Value.UpdateCachedMaterialData(cmd);
|
|
}
|
|
}
|
|
|
|
public void CreateDrawData()
|
|
{
|
|
m_DecalDatasCount = 0;
|
|
// reallocate if needed
|
|
if (m_DecalsVisibleThisFrame > m_DecalDatas.Length)
|
|
{
|
|
int newDecalDatasSize = ((m_DecalsVisibleThisFrame + kDecalBlockSize - 1) / kDecalBlockSize) * kDecalBlockSize;
|
|
m_DecalDatas = new DecalData[newDecalDatasSize];
|
|
m_Bounds = new SFiniteLightBound[newDecalDatasSize];
|
|
m_LightVolumes = new LightVolumeData[newDecalDatasSize];
|
|
}
|
|
foreach (var pair in m_DecalSets)
|
|
{
|
|
pair.Value.CreateDrawData();
|
|
}
|
|
}
|
|
|
|
public void Cleanup()
|
|
{
|
|
if (m_DecalAtlas != null)
|
|
m_DecalAtlas.Release();
|
|
CoreUtils.Destroy(m_DecalMesh);
|
|
// set to null so that they get recreated
|
|
m_DecalAtlas = null;
|
|
m_DecalMesh = null;
|
|
}
|
|
}
|
|
}
|