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Implemented bone weight reading into desired format.

This commit is contained in:
Xiao Qi 2023-01-16 16:12:43 +08:00
parent 7f9991038a
commit 5089957468
2 changed files with 52 additions and 28 deletions
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21
SHADE_Engine/src/Assets/Asset Types/Models/SHMeshAsset.h
View File

@ -18,6 +18,13 @@
namespace SHADE
{
constexpr int BONE_INDEX_ALIGHTMENT = 4;
struct IndexUInt4
{
std::array<uint32_t,BONE_INDEX_ALIGHTMENT> indices;
};
struct SHMeshDataHeader
{
uint32_t vertexCount;
@ -48,12 +55,12 @@ namespace SHADE
struct SH_API SHMeshAsset : SHAssetData
{
std::string name;
std::vector<SHVec3> VertexPositions;
std::vector<SHVec3> VertexTangents;
std::vector<SHVec3> VertexNormals;
std::vector<SHVec2> VertexTexCoords;
std::vector<uint32_t> Indices;
std::vector<int> VertexBoneIndices;
std::vector<SHVec4> VertexBoneWeights;
std::vector<SHVec3> VertexPositions;
std::vector<SHVec3> VertexTangents;
std::vector<SHVec3> VertexNormals;
std::vector<SHVec2> VertexTexCoords;
std::vector<uint32_t> Indices;
std::vector<IndexUInt4> VertexBoneIndices;
std::vector<SHVec4> VertexBoneWeights;
};
}

59
SHADE_Engine/src/Assets/Libraries/Loaders/SHModelLoader.cpp
View File

@ -222,33 +222,50 @@ namespace SHADE
file.read(reinterpret_cast<char*>(data.VertexNormals.data()), vertexVec3Byte);
file.read(reinterpret_cast<char*>(data.VertexTexCoords.data()), vertexVec2Byte);
file.read(reinterpret_cast<char*>(data.Indices.data()), sizeof(uint32_t) * header.indexCount);
std::vector<MeshBoneInfo> boneInfos(header.boneCount);
std::vector<MeshBone> bones(header.boneCount);
file.read(reinterpret_cast<char*>(boneInfos.data()), sizeof(MeshBoneInfo) * header.boneCount);
for (auto i{ 0 }; i < header.boneCount; ++i)
if (header.boneCount)
{
auto& bone = bones[i];
auto const& info = boneInfos[i];
std::vector<MeshBoneInfo> boneInfos(header.boneCount);
std::vector<MeshBone> bones(header.boneCount);
bone.name.resize(info.charCount);
file.read(bone.name.data(), info.charCount);
file.read(reinterpret_cast<char*>(&bone.offset), sizeof(SHMatrix));
file.read(reinterpret_cast<char*>(boneInfos.data()), sizeof(MeshBoneInfo) * header.boneCount);
uint32_t weightCount;
file.read(reinterpret_cast<char*>(&weightCount), sizeof(uint32_t));
bone.weights.resize(weightCount);
file.read(reinterpret_cast<char*>(bone.weights.data()), sizeof(BoneWeight) * weightCount);
}
for (auto i{ 0 }; i < header.boneCount; ++i)
{
auto& bone = bones[i];
auto const& info = boneInfos[i];
data.VertexBoneIndices.resize(header.vertexCount);
data.VertexBoneWeights.resize(header.vertexCount);
bone.name.resize(info.charCount);
file.read(bone.name.data(), info.charCount);
file.read(reinterpret_cast<char*>(&bone.offset), sizeof(SHMatrix));
for (auto const& bone : bones)
{
uint32_t weightCount;
file.read(reinterpret_cast<char*>(&weightCount), sizeof(uint32_t));
bone.weights.resize(weightCount);
file.read(reinterpret_cast<char*>(bone.weights.data()), sizeof(BoneWeight) * weightCount);
}
data.VertexBoneIndices.resize(header.vertexCount);
data.VertexBoneWeights.resize(header.vertexCount);
for (uint32_t boneIndex{0}; boneIndex < bones.size(); ++boneIndex)
{
auto const& bone = bones[boneIndex];
for (auto const& weight : bone.weights)
{
auto& boneIndices = data.VertexBoneIndices[weight.index];
auto& boneWeight = data.VertexBoneWeights[weight.index];
for (auto j{0}; j < BONE_INDEX_ALIGHTMENT; ++j)
{
if (boneWeight[j] == 0.f)
{
boneIndices.indices[j] = boneIndex;
boneWeight[j] = weight.weight;
}
}
}
}
}
meshes[i] = &data;