protected override void OnUpdate()
{
Entities.ForEach((UnityEngine.SkinnedMeshRenderer uSkinnedMeshRenderer) =>
{
var sharedMaterials = uSkinnedMeshRenderer.sharedMaterials;
UnityEngine.Mesh uMesh = uSkinnedMeshRenderer.sharedMesh;
var meshEntity = GetPrimaryEntity(uMesh);
for (int i = 0; i < uMesh.subMeshCount; i++)
{
// Find the target material entity to be used for this submesh
Entity targetMaterial = MeshRendererConversion.FindTargetMaterialEntity(this, sharedMaterials, i);
var isLit = DstEntityManager.HasComponent <LitMaterial>(targetMaterial);
var isSimple = DstEntityManager.HasComponent <SimpleMaterial>(targetMaterial);
if (isSimple)
{
Debug.Log("Unlit material was not supported in SkinnedMeshRenderer:" + uMesh.name);
continue;
}
if (isLit)
{
if (uSkinnedMeshRenderer.bones.Length > MeshSkinningConfig.GPU_SKINNING_MAX_BONES)
{
DstEntityManager.AddComponent <NeedGenerateGPUSkinnedMeshRenderer>(meshEntity);
}
DstEntityManager.AddComponent <LitMeshRenderData>(meshEntity);
// Remove simple data if it was there, we don't need it
DstEntityManager.RemoveComponent <SimpleMeshRenderData>(meshEntity);
}
}
});
}
protected override void OnUpdate()
{
Entities.ForEach((UnityEngine.SkinnedMeshRenderer uSkinnedMeshRenderer) =>
{
var sharedMaterials = uSkinnedMeshRenderer.sharedMaterials;
UnityEngine.Mesh uMesh = uSkinnedMeshRenderer.sharedMesh;
var meshEntity = GetPrimaryEntity(uMesh);
List <Entity> subSkinnedMeshRenderers = new List <Entity>();
for (int i = 0; i < uMesh.subMeshCount; i++)
{
// Find the target material entity to be used for this submesh
Entity targetMaterial = MeshRendererConversion.FindTargetMaterialEntity(this, sharedMaterials, i);
var isLit = DstEntityManager.HasComponent <LitMaterial>(targetMaterial);
var isSimple = DstEntityManager.HasComponent <SimpleMaterial>(targetMaterial);
if (isSimple)
{
Debug.Log("Unlit material was not supported in SkinnedMeshRenderer:" + uMesh.name);
continue;
}
if (isLit)
{
Entity subSkinnedMeshRendererEntity =
ConvertOriginalSubMesh(this, uSkinnedMeshRenderer, uMesh, meshEntity, i, targetMaterial);
subSkinnedMeshRenderers.Add(subSkinnedMeshRendererEntity);
}
}
List <Entity> ret = ConvertGPUSkinnedSubMesh(this, uSkinnedMeshRenderer, uMesh, meshEntity);
if (ret != null)
{
subSkinnedMeshRenderers.AddRange(ret);
}
for (int j = 0; j < subSkinnedMeshRenderers.Count; j++)
{
Entity subSkinnedMeshRenderer = subSkinnedMeshRenderers[j];
DstEntityManager.AddComponent <LitMeshRenderer>(subSkinnedMeshRenderer);
}
ConvertSkinnedMeshBoneInfoToTransformEntity(this, uSkinnedMeshRenderer);
});
}
public void RetrieveLitSkinnedMeshData(Mesh uMesh, Entity meshEntity, EntityManager entityManager)
{
List <int> duplicateVertexIndex = new List <int>();
List <Vector4> duplicateBoneIndex = new List <Vector4>();
Dictionary <int, Vector4> existingVertex2NewBoneIndex = new Dictionary <int, Vector4>();
Dictionary <int, int> boneIndexCounter = new Dictionary <int, int>();
List <int> gpuDrawRange = new List <int>();
BoneWeight[] boneWeights = uMesh.boneWeights;
int[] triangles = uMesh.triangles;
//Separate mesh into different draw range for gpu skinning use
for (int subMeshIndex = 0; subMeshIndex < uMesh.subMeshCount; subMeshIndex++)
{
UnityEngine.Rendering.SubMeshDescriptor uSubMeshDescriptor = uMesh.GetSubMesh(subMeshIndex);
int curIndex = uSubMeshDescriptor.indexStart;
int lastIndex = uSubMeshDescriptor.indexStart;
int endIndex = curIndex + uSubMeshDescriptor.indexCount;
while (curIndex < endIndex)
{
int curBoneCount = boneIndexCounter.Count;
for (int offset = 0; offset < 3; offset++)
{
int vertexIndex = triangles[curIndex + offset];
BoneWeight boneWeight = boneWeights[vertexIndex];
curBoneCount += CalcToBeAddBoneIndexCount(boneIndexCounter, boneWeight);
}
if (curBoneCount > MeshSkinningConfig.GPU_SKINNING_MAX_BONES)
{
gpuDrawRange.Add(curIndex);
Debug.Log("GPU SkinnedMesh Draw Range[" + lastIndex + ":" + curIndex + "] BoneCount:" + boneIndexCounter.Count);
lastIndex = curIndex;
boneIndexCounter.Clear();
}
else
{
for (int offset = 0; offset < 3; offset++)
{
int vertexIndex = triangles[curIndex + offset];
BoneWeight curBoneWeight = boneWeights[vertexIndex];
//restore the new bone index and set it to the mesh later
Vector4 newBoneIndex = new Vector4();
newBoneIndex.x = GetNewBoneIndex(boneIndexCounter, curBoneWeight.weight0, curBoneWeight.boneIndex0);
newBoneIndex.y = GetNewBoneIndex(boneIndexCounter, curBoneWeight.weight1, curBoneWeight.boneIndex1);
newBoneIndex.z = GetNewBoneIndex(boneIndexCounter, curBoneWeight.weight2, curBoneWeight.boneIndex2);
newBoneIndex.w = GetNewBoneIndex(boneIndexCounter, curBoneWeight.weight3, curBoneWeight.boneIndex3);
Vector4 existingNewBoneIndex = new Vector4();
bool isExist = existingVertex2NewBoneIndex.TryGetValue(vertexIndex, out existingNewBoneIndex);
if (isExist && newBoneIndex != existingNewBoneIndex)
{
bool needAdd = true;
int newVertexIndex = 0;
for (int j = 0; j < duplicateVertexIndex.Count; j++)
{
if (duplicateVertexIndex[j] == vertexIndex && duplicateBoneIndex[j] == newBoneIndex)
{
newVertexIndex = uMesh.vertexCount + j;
triangles[curIndex + offset] = newVertexIndex;
needAdd = false;
break;
}
}
if (needAdd)
{
duplicateVertexIndex.Add(vertexIndex);
duplicateBoneIndex.Add(newBoneIndex);
newVertexIndex = uMesh.vertexCount + duplicateVertexIndex.Count - 1;
triangles[curIndex + offset] = newVertexIndex;
existingVertex2NewBoneIndex[newVertexIndex] = newBoneIndex;
}
}
else
{
existingVertex2NewBoneIndex[vertexIndex] = newBoneIndex;
}
}
curIndex += 3;
}
}
if (lastIndex != curIndex)
{
gpuDrawRange.Add(curIndex);
Debug.Log("GPU SkinnedMesh Draw Range[" + lastIndex + ":" + curIndex + "] BoneCount:" + boneIndexCounter.Count);
}
}
Debug.Log("GPU SkinnedMesh Duplicate VertexCount:" + duplicateVertexIndex.Count);
Debug.Log("GPU SkinnedMesh DrawCalls: " + gpuDrawRange.Count);
//generate UMeshDataCache and adding duplicate vertices into UMeshDataCache
int newVertexCount = uMesh.vertexCount + duplicateVertexIndex.Count;
RetrieveLitMeshData(uMesh, newVertexCount);
for (int i = 0; i < duplicateVertexIndex.Count; i++)
{
int curVertexIndex = uMesh.vertexCount + i;
int originalVertexIndex = duplicateVertexIndex[i];
uPositions[curVertexIndex] = uPositions[originalVertexIndex];
uUVs[curVertexIndex] = uUVs[originalVertexIndex];
uNormals[curVertexIndex] = uNormals[originalVertexIndex];
uTangents[curVertexIndex] = uTangents[originalVertexIndex];
uBiTangents[curVertexIndex] = uBiTangents[originalVertexIndex];
uBoneWeights[curVertexIndex] = uBoneWeights[originalVertexIndex];
uBoneIndices[curVertexIndex] = uBoneIndices[originalVertexIndex];
uColors[curVertexIndex] = uColors[originalVertexIndex];
}
//Update the indices, some of the triangles reference to the duplicate vertex
for (int i = 0; i < triangles.Length; i++)
{
uIndices[i] = Convert.ToUInt16(triangles[i]);
}
//Restore the original vertex bone index for switching GPU skinning to CPU skinning in the runtime
DynamicBuffer <OriginalVertexBoneIndex> obiBuffer = entityManager.AddBuffer <OriginalVertexBoneIndex>(meshEntity);
for (int i = 0; i < newVertexCount; i++)
{
Vector4 uBoneIndex = uBoneIndices[i];
obiBuffer.Add(new OriginalVertexBoneIndex {
BoneIndex = new float4(uBoneIndex.x, uBoneIndex.y, uBoneIndex.z, uBoneIndex.w)
});
Vector4 newBoneIndex = existingVertex2NewBoneIndex[i];
uBoneIndices[i] = newBoneIndex;
}
//Add GPUSkinnedMeshDrawRange for SkinnedMeshRendererConversion use.
DynamicBuffer <GPUSkinnedMeshDrawRange> gsmdrBuffer = entityManager.AddBuffer <GPUSkinnedMeshDrawRange>(meshEntity);
for (int i = 0; i < gpuDrawRange.Count; i++)
{
gsmdrBuffer.Add(new GPUSkinnedMeshDrawRange {
TriangleIndex = gpuDrawRange[i]
});
}
}
