public Boolean ProcessAssetContext(H1StaticLODModel staticLODModel, H1MeshContext[] meshContexts, H1SkeletalContext skeletalContext)
{
if (m_Skeleton == null)
{
return(false);
}
// 1. process skeletalContext (H1SkeletalContext)
H1SkeletalContext.JointNode rootNode = skeletalContext.Root;
H1ReferenceSkeleton refSkeleton = m_Skeleton.RefSkeleton;
#region Disabled
// process recursively from root node
//Dictionary<String, H1SkeletalContext.JointNode> mapNodeNameToJointNode = new Dictionary<string, H1SkeletalContext.JointNode>();
//if (!ProcessAssetContextRecursive(rootNode, ref refSkeleton, ref mapNodeNameToJointNode))
// return false; // failed to process nodes from root nodes
#endregion
// 2. process meshContexts (H1MeshContext)
// collect all vertices for all different mesh contexts
Int32[] meshContextOffsetsList = new Int32[meshContexts.Count()];
List <Vector3> positionsList = new List <Vector3>();
List <Vector3> tangentXList = new List <Vector3>();
List <Vector3> tangentYList = new List <Vector3>();
List <Vector3> tangentZList = new List <Vector3>();
List <Vector2> texcoordsList = new List <Vector2>();
Int32 currMeshContextIndex = 0;
foreach (H1MeshContext meshContext in meshContexts)
{
meshContextOffsetsList[currMeshContextIndex] = positionsList.Count;
positionsList.AddRange(meshContext.Positions);
tangentXList.AddRange(meshContext.Tangents);
tangentYList.AddRange(meshContext.Normals);
tangentZList.AddRange(meshContext.BiTangents);
texcoordsList.AddRange(meshContext.UVBuffers[0].Buffer);
currMeshContextIndex++;
}
Vector3[] positions = positionsList.ToArray();
Vector3[] tangentX = tangentXList.ToArray();
Vector3[] tangentY = tangentYList.ToArray();
Vector3[] tangentZ = tangentZList.ToArray();
Vector2[] texcoords = texcoordsList.ToArray();
Int32 numPositions = positions.Count();
if (numPositions != texcoords.Count())
{
return(false);
}
// create the list of vertex info
List <VertexInfo> vertexInfoList = new List <VertexInfo>();
#if DEBUG
List <Boolean> taggedVertexInfoList = new List <Boolean>();
#endif
for (Int32 i = 0; i < numPositions; ++i)
{
vertexInfoList.Add(new VertexInfo());
vertexInfoList[i].VertexIndex = i;
#if DEBUG
taggedVertexInfoList.Add(false);
#endif
}
// set the triangle index
// create collection of index for all mesh contexts
List <UInt32> indexList = new List <UInt32>();
Int32 meshContextIndex = 0;
foreach (H1MeshContext meshContext in meshContexts)
{
// using meshContextOffsetsList information, remap indices correctly
foreach (UInt32 vertexIndex in meshContext.Indices)
{
indexList.Add(Convert.ToUInt32(meshContextOffsetsList[meshContextIndex]) + vertexIndex);
}
meshContextIndex++;
}
UInt32[] indices = indexList.ToArray();
#if DEBUG
Boolean[] taggedIndices = new Boolean[indexList.Count];
#endif
// looping index, set triangle index for each vertexInfoList
Int32 indexOfIndex = 0;
foreach (UInt32 index in indices)
{
Int32 vertexIndex = Convert.ToInt32(index);
Int32 triangleIndex = indexOfIndex / 3;
// set the triangle index
vertexInfoList[vertexIndex].TriangleIndices.Add(triangleIndex);
#if DEBUG
taggedIndices[indexOfIndex] = false;
#endif
indexOfIndex++;
}
// process vertex weights and bone index in advance by looping all H1MeshBoneInfo
Int32 meshBoneInfoIndex = 0;
foreach (H1MeshBoneInfo meshBoneInfo in refSkeleton.RefBoneInfoList)
{
Int32 jointNodeIndex = skeletalContext.JointNodes.FindIndex(x => x.JointName == meshBoneInfo.Name);
H1SkeletalContext.JointNode node = skeletalContext.JointNodes[jointNodeIndex];
foreach (H1SkeletalContext.Joint nodeData in node.JointDataList)
{
// looping weighted vertices
Int32 vertexIndexOffset = nodeData.MeshContextIndex == -1 ? 0 : meshContextOffsetsList[nodeData.MeshContextIndex];
// process vertex weights and bone index
foreach (H1SkeletalContext.WeightedVertex weightedVertex in nodeData.WeightedVertices)
{
VertexInfo.InfluenceBoneData influencedBoneData = new VertexInfo.InfluenceBoneData();
influencedBoneData.BoneIndex = meshBoneInfoIndex;
influencedBoneData.BoneWeight = weightedVertex.Weight;
vertexInfoList[vertexIndexOffset + weightedVertex.VertexIndex].InfluencedBones.Add(influencedBoneData);
}
}
meshBoneInfoIndex++;
}
#if DEBUG
// verification code for vertex weights
List <float> taggedVertexWeights = new List <float>();
foreach (VertexInfo vertexInfo in vertexInfoList)
{
float totalWeight = 0.0f;
foreach (VertexInfo.InfluenceBoneData influencedBoneData in vertexInfo.InfluencedBones)
{
totalWeight += influencedBoneData.BoneWeight;
}
taggedVertexWeights.Add(totalWeight);
}
List <Int32> invalidVertexIndices = new List <Int32>();
Int32 currVertexIndex = 0;
foreach (float totalWeight in taggedVertexWeights)
{
if (totalWeight < 0.99f)
{
invalidVertexIndices.Add(currVertexIndex);
}
currVertexIndex++;
}
if (invalidVertexIndices.Count > 0)
{
return(false);
}
#endif
// looping meshBoneInfo, set bone index and bone weight
foreach (H1MeshBoneInfo meshBoneInfo in refSkeleton.RefBoneInfoList)
{
Int32 jointNodeIndex = skeletalContext.JointNodes.FindIndex(x => x.JointName == meshBoneInfo.Name);
H1SkeletalContext.JointNode node = skeletalContext.JointNodes[jointNodeIndex];
List <UInt32> ChunkVertexIndices = new List <UInt32>(); // vertex indices for this chunk (bone node)
foreach (H1SkeletalContext.Joint nodeData in node.JointDataList)
{
// looping weighted vertices
Int32 vertexIndexOffset = nodeData.MeshContextIndex == -1 ? 0 : meshContextOffsetsList[nodeData.MeshContextIndex];
// add chunk vertex indices
foreach (H1SkeletalContext.WeightedVertex weightedVertex in nodeData.WeightedVertices)
{
ChunkVertexIndices.Add(Convert.ToUInt32(vertexIndexOffset + weightedVertex.VertexIndex));
}
}
// exceptional handling for MeshBoneInfo which doesn't contain any mesh data, no need to generate chunk for this BasePose
if (ChunkVertexIndices.Count == 0)
{
continue;
}
// process skeletal mesh chunk
H1SkelMeshChunk skelMeshChunk = new H1SkelMeshChunk();
// calculate triangles for this mesh chunk
List <UInt32> triangles = new List <UInt32>();
foreach (Int32 vertexIndex in ChunkVertexIndices)
{
VertexInfo vertexInfo = vertexInfoList[vertexIndex];
H1SoftSkinVertex newSoftSkinVertex = new H1SoftSkinVertex();
newSoftSkinVertex.Position = positions[vertexInfo.VertexIndex];
newSoftSkinVertex.TangentX = tangentX[vertexInfo.VertexIndex];
newSoftSkinVertex.TangentY = tangentY[vertexInfo.VertexIndex];
newSoftSkinVertex.TangentZ = tangentZ[vertexInfo.VertexIndex];
// @TODO - in the future, it could increase texcoords (ex. light map texcoord)
newSoftSkinVertex.UVs[0] = texcoords[vertexInfo.VertexIndex];
for (Int32 i = 0; i < H1ObjectGlobalDefinitions.MAX_TOTAL_INFLUENCES; ++i)
{
if (vertexInfo.InfluencedBones.Count <= i)
{
// insert the default value
newSoftSkinVertex.InfluenceWeights[i] = 0;
newSoftSkinVertex.InfluenceBones[i] = 0;
continue;
}
VertexInfo.InfluenceBoneData boneData = vertexInfo.InfluencedBones[i];
newSoftSkinVertex.InfluenceWeights[i] = Convert.ToByte(boneData.BoneWeight * 255.0f);
// @TODO - for this bone index, we can replace with 'm_BoneMap'
newSoftSkinVertex.InfluenceBones[i] = Convert.ToByte(boneData.BoneIndex);
}
skelMeshChunk.SoftVertices.Add(newSoftSkinVertex);
// process triangle indices
foreach (Int32 triangleIndex in vertexInfo.TriangleIndices)
{
UInt32 triangleIndexUInt32 = Convert.ToUInt32(triangleIndex);
if (!triangles.Exists(x => { return(x == triangleIndexUInt32); }))
{
triangles.Add(triangleIndexUInt32);
}
}
}
// build vertex buffers
List <Vector4> chunkPositions = new List <Vector4>();
List <Vector4> chunkTangentZs = new List <Vector4>();
List <Vector4> chunkTangentXs = new List <Vector4>();
List <Vector2> chunkTexcoords = new List <Vector2>();
List <Int4> chunkBoneIndices = new List <Int4>();
List <Vector4> chunkBoneWeights = new List <Vector4>();
List <Vector4> chunkColors = new List <Vector4>();
Dictionary <Int32, Int32> vertexToChunkVertexMap = new Dictionary <Int32, Int32>();
foreach (Int32 triangleIndex in triangles)
{
for (Int32 faceIndex = 0; faceIndex < 3; ++faceIndex)
{
Int32 vertexIndex = Convert.ToInt32(indices[triangleIndex * 3 + faceIndex]);
#if DEBUG
taggedVertexInfoList[vertexIndex] = true;
#endif
// determine if the same vertex exists based on chunkPositions
//if (chunkPositions.Contains(new Vector4(positions[vertexIndex], 1.0f)))
if (vertexToChunkVertexMap.ContainsKey(vertexIndex))
{
continue;
}
// position index is base-index
Int32 newIndex = chunkPositions.Count;
vertexToChunkVertexMap.Add(vertexIndex, newIndex);
chunkPositions.Add(new Vector4(positions[vertexIndex], 1.0f));
chunkTangentZs.Add(new Vector4(tangentZ[vertexIndex], 1.0f));
chunkTangentXs.Add(new Vector4(tangentX[vertexIndex], 1.0f));
chunkTexcoords.Add(new Vector2(texcoords[vertexIndex].X, texcoords[vertexIndex].Y));
VertexInfo vertexInfo = vertexInfoList[vertexIndex];
Int4 influencedBones = new Int4(0);
Vector4 influencedWeights = new Vector4(0.0f);
Int32 insertedIndex = 0;
foreach (VertexInfo.InfluenceBoneData boneData in vertexInfo.InfluencedBones)
{
influencedBones[insertedIndex] = boneData.BoneIndex;
influencedWeights[insertedIndex] = boneData.BoneWeight;
insertedIndex++;
}
chunkBoneIndices.Add(influencedBones);
chunkBoneWeights.Add(influencedWeights);
//@TODO - temporary set it as 'RED'
chunkColors.Add(new Vector4(1.0f, 0.0f, 0.0f, 1.0f));
}
}
// create skeletal mesh vertex data
// 1. position
H1SkeletalMeshVertexData <Vector4> positionVertexData = new H1SkeletalMeshVertexData <Vector4>();
positionVertexData.SetVertexData(chunkPositions.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.Position, false);
// 2. tangentZ
H1SkeletalMeshVertexData <Vector4> tangentZVertexData = new H1SkeletalMeshVertexData <Vector4>();
tangentZVertexData.SetVertexData(chunkTangentZs.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.TangentZ, false);
// 3. tangentX
H1SkeletalMeshVertexData <Vector4> tangentXVertexData = new H1SkeletalMeshVertexData <Vector4>();
tangentXVertexData.SetVertexData(chunkTangentXs.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.TangentX, false);
// 4. bone indices
H1SkeletalMeshVertexData <Int4> boneIndicesVertexData = new H1SkeletalMeshVertexData <Int4>();
boneIndicesVertexData.SetVertexData(chunkBoneIndices.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.InfluencedBones, false);
// 5. bone weights
H1SkeletalMeshVertexData <Vector4> boneWeightsVertexData = new H1SkeletalMeshVertexData <Vector4>();
boneWeightsVertexData.SetVertexData(chunkBoneWeights.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.InfluencedWeights, false);
// 6. texcoord
H1SkeletalMeshVertexData <Vector2> texcoordVertexData = new H1SkeletalMeshVertexData <Vector2>();
texcoordVertexData.SetVertexData(chunkTexcoords.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.Texcoord, false);
// 7. colors
H1SkeletalMeshVertexData <Vector4> colorVertexData = new H1SkeletalMeshVertexData <Vector4>();
colorVertexData.SetVertexData(chunkColors.ToArray(), H1SkeletalMeshVertexDataInterface.VertexDataType.Color);
Int32 newSkelMeshChunkIndex = staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers.Count;
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers.Add(new H1SkeletalMeshVertexBuffers(newSkelMeshChunkIndex));
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(positionVertexData);
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(tangentZVertexData);
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(tangentXVertexData);
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(boneIndicesVertexData);
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(boneWeightsVertexData);
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(texcoordVertexData);
staticLODModel.VertexBufferGPUSkin.SkeletalMeshVertexBuffers[newSkelMeshChunkIndex].AddSkeletalMeshVertexData(colorVertexData);
// build index buffer
List <UInt32> chunkIndices = new List <UInt32>();
foreach (Int32 triangleIndex in triangles)
{
for (Int32 faceIndex = 0; faceIndex < 3; ++faceIndex)
{
#if DEBUG
taggedIndices[triangleIndex * 3 + faceIndex] = true;
#endif
Int32 vertexIndex = Convert.ToInt32(indices[triangleIndex * 3 + faceIndex]);
chunkIndices.Add(Convert.ToUInt32(vertexToChunkVertexMap[vertexIndex]));
}
}
staticLODModel.MultiSizeIndexContainer.Indices.AddRange(chunkIndices.ToArray());
// add new chunk
Int32 newChunkIndex = staticLODModel.Chunks.Count;
staticLODModel.Chunks.Add(skelMeshChunk);
// process skeletal mesh section
H1SkelMeshSection skelMeshSection = new H1SkelMeshSection();
skelMeshSection.ChunkIndex = Convert.ToUInt16(newChunkIndex);
// @TODO - fix this num triangle inconsistency
//skelMeshSection.NumTriangles = Convert.ToUInt16(triangles.Count);
skelMeshSection.NumTriangles = Convert.ToUInt16(chunkIndices.Count / 3);
//@TODO - add material index
// add skeletal sections
staticLODModel.Sections.Add(skelMeshSection);
}
#if DEBUG
// debugging code for detecting missing vertex to draw meshes
List <Int32> notTaggedVertexIndex = new List <Int32>();
Int32 currTaggedVertexIndex = 0;
foreach (Boolean isTaggedVertex in taggedVertexInfoList)
{
if (isTaggedVertex == false)
{
notTaggedVertexIndex.Add(currTaggedVertexIndex);
}
currTaggedVertexIndex++;
}
if (notTaggedVertexIndex.Count > 0)
{
return(false);
}
// debugging code for detecting missing index to draw meshes
List <Int32> notTaggedIndex = new List <Int32>();
Int32 currIndexOfIndex = 0;
foreach (Boolean isTaggedIndex in taggedIndices)
{
if (isTaggedIndex == false)
{
notTaggedIndex.Add(currIndexOfIndex);
}
currIndexOfIndex++;
}
if (notTaggedIndex.Count > 0)
{
return(false);
}
#endif
return(true);
}
public Boolean GenerateSkeleltalMeshObjectGpuSkin()
{
// allocate new instance of SkeletalMeshGpuSkin
m_SkeletalMeshObject = new H1SkeletalMeshObjectGPUSkin(m_SkeletalMesh.SkeletalMeshResource);
H1SkeletalMeshObjectGPUSkin refSkeletalMeshObject = m_SkeletalMeshObject as H1SkeletalMeshObjectGPUSkin;
// process soft vertices for each chunk to separate vertex buffers
// @TODO - handle LOD variation
List <H1SkelMeshChunk> skelChunks = SkeletalMesh.SkeletalMeshResource.GetLODModel(0).Chunks;
// @TODO - temporary add LOD_0
H1SkeletalMeshObjectGPUSkin.H1SkeletalMeshObjectLOD skeletalMeshObjectLOD_0 = refSkeletalMeshObject.AddSkeletalMeshObjectLOD();
Int32 skelChunkIndex = 0;
foreach (H1SkelMeshChunk skelChunk in skelChunks)
{
H1SkeletalMeshVertexBuffers skeletalMeshVBsRef = skeletalMeshObjectLOD_0.SkelMeshResourceRef.GetLODModel(0).VertexBufferGPUSkin.SkeletalMeshVertexBuffers[skelChunkIndex];
// add GPUSkinFactory
skeletalMeshObjectLOD_0.GPUSkinVertexFactories.VertexFactories.Add(new H1GpuSkinVertexFactory());
H1GpuSkinVertexFactory newGpuSkinVertexFactoryRef = skeletalMeshObjectLOD_0.GPUSkinVertexFactories.VertexFactories.Last();
// offset tracking
Int32 currOffset = 0;
Int32 skelMeshVBsCount = skeletalMeshVBsRef.GetSkeletalMeshVertexDataCount();
for (Int32 skelMeshVBIndex = 0; skelMeshVBIndex < skelMeshVBsCount; ++skelMeshVBIndex)
{
H1SkeletalMeshVertexDataInterface skeletalMeshVertexData = skeletalMeshVBsRef.GetSkeletalMeshVertexData(skelMeshVBIndex);
switch (skeletalMeshVertexData.DataType)
{
case H1SkeletalMeshVertexDataInterface.VertexDataType.Position:
{
H1SkeletalMeshVertexData <Vector4> positionVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Vector4>;
newGpuSkinVertexFactoryRef.ShaderData.PositionBuffer = H1VertexBuffer.ProcessVertexBuffer(positionVertexData.VertexBuffer);
newGpuSkinVertexFactoryRef.PositionStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.Position, H1VertexElementType.Float4, currOffset++);
break;
}
case H1SkeletalMeshVertexDataInterface.VertexDataType.TangentZ:
{
H1SkeletalMeshVertexData <Vector4> tangentZVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Vector4>;
newGpuSkinVertexFactoryRef.ShaderData.TangentZBuffer = H1VertexBuffer.ProcessVertexBuffer(tangentZVertexData.VertexBuffer);
newGpuSkinVertexFactoryRef.TangentZStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.TangentZ, H1VertexElementType.Float4, currOffset++);
break;
}
case H1SkeletalMeshVertexDataInterface.VertexDataType.TangentX:
{
H1SkeletalMeshVertexData <Vector4> tangentXVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Vector4>;
newGpuSkinVertexFactoryRef.ShaderData.TangentXBuffer = H1VertexBuffer.ProcessVertexBuffer(tangentXVertexData.VertexBuffer);
newGpuSkinVertexFactoryRef.TangentXStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.TangentX, H1VertexElementType.Float4, currOffset++);
break;
}
case H1SkeletalMeshVertexDataInterface.VertexDataType.InfluencedBones:
{
H1SkeletalMeshVertexData <Int4> boneIndicesVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Int4>;
newGpuSkinVertexFactoryRef.ShaderData.BoneIndices = H1VertexBuffer.ProcessVertexBuffer(boneIndicesVertexData.VertexBuffer);
newGpuSkinVertexFactoryRef.BoneIndicesStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.BoneIndices, H1VertexElementType.Int4, currOffset++);
break;
}
case H1SkeletalMeshVertexDataInterface.VertexDataType.InfluencedWeights:
{
H1SkeletalMeshVertexData <Vector4> blendWeightsVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Vector4>;
newGpuSkinVertexFactoryRef.ShaderData.BoneWeights = H1VertexBuffer.ProcessVertexBuffer(blendWeightsVertexData.VertexBuffer);
newGpuSkinVertexFactoryRef.BoneWeightsStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.BoneWeights, H1VertexElementType.Float4, currOffset++);
break;
}
// @TODO - support multiple texcoords
case H1SkeletalMeshVertexDataInterface.VertexDataType.Texcoord:
{
H1SkeletalMeshVertexData <Vector2> texcoordVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Vector2>;
newGpuSkinVertexFactoryRef.ShaderData.TexcoordBuffers.Add(H1VertexBuffer.ProcessVertexBuffer(texcoordVertexData.VertexBuffer));
newGpuSkinVertexFactoryRef.TexcoordStreamComponents.Add(new H1VertexStreamComponent(H1VertexStreamSematicType.Texcoord, H1VertexElementType.Float2, currOffset++));
break;
}
case H1SkeletalMeshVertexDataInterface.VertexDataType.Color:
{
H1SkeletalMeshVertexData <Vector4> colorVertexData = skeletalMeshVertexData as H1SkeletalMeshVertexData <Vector4>;
newGpuSkinVertexFactoryRef.ShaderData.ColorBuffer = H1VertexBuffer.ProcessVertexBuffer(colorVertexData.VertexBuffer);
newGpuSkinVertexFactoryRef.ColorStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.Color, H1VertexElementType.Float4, currOffset++);
break;
}
}
}
// generate RHIVertexFormat Declaration
newGpuSkinVertexFactoryRef.GenerateVertexDeclaration();
skelChunkIndex++;
}
// add index buffer (containing multiple skeletal mesh chunks's indices)
List <UInt32> indices = SkeletalMesh.SkeletalMeshResource.GetLODModel(0).MultiSizeIndexContainer.Indices;
UInt32 bufferSize = Convert.ToUInt32(Utilities.SizeOf <UInt32>() * indices.Count);
skeletalMeshObjectLOD_0.IndexBuffer = H1Global <H1ManagedRenderer> .Instance.CreateIndexBuffer(bufferSize);
// write indices data
skeletalMeshObjectLOD_0.IndexBuffer.WriteData(indices.ToArray());
return(true);
}
