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Introduce hfm::Mesh.clusterWeightsPerVertex

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This commit is contained in:
sabrina-shanman 2019-10-18 11:12:08 -07:00
parent 5d91d22314
commit ad6720240f
6 changed files with 9 additions and 5 deletions
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1
libraries/fbx/src/FBXSerializer.cpp
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@ -1671,6 +1671,7 @@ HFMModel* FBXSerializer::extractHFMModel(const hifi::VariantHash& mapping, const
}
mesh.clusterIndices = std::move(reweightedDeformers.indices);
mesh.clusterWeights = std::move(reweightedDeformers.weights);
mesh.clusterWeightsPerVertex = reweightedDeformers.weightsPerVertex;
}
// Store the model's dynamic transform, and put its ID in the shapes

1
libraries/hfm/src/hfm/HFM.h
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@ -250,6 +250,7 @@ public:
// Skinning cluster attributes
std::vector<uint16_t> clusterIndices;
std::vector<uint16_t> clusterWeights;
uint16_t clusterWeightsPerVertex { 0 };
// Blendshape attributes
QVector<Blendshape> blendshapes;

1
libraries/hfm/src/hfm/HFMModelMath.cpp
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@ -75,6 +75,7 @@ ReweightedDeformers getReweightedDeformers(const size_t numMeshVertices, const s
size_t numClusterIndices = numMeshVertices * weightsPerVertex;
reweightedDeformers.indices.resize(numClusterIndices, (uint16_t)(skinClusters.size() - 1));
reweightedDeformers.weights.resize(numClusterIndices, 0);
reweightedDeformers.weightsPerVertex = weightsPerVertex;
std::vector<float> weightAccumulators;
weightAccumulators.resize(numClusterIndices, 0.0f);

7
libraries/hfm/src/hfm/HFMModelMath.h
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@ -25,16 +25,17 @@ void calculateExtentsForShape(hfm::Shape& shape, const std::vector<hfm::Mesh>& m
void calculateExtentsForModel(Extents& modelExtents, const std::vector<hfm::Shape>& shapes);
const uint16_t NUM_SKINNING_WEIGHTS_PER_VERTEX = 4;
class ReweightedDeformers {
public:
std::vector<uint16_t> indices;
std::vector<uint16_t> weights;
uint16_t weightsPerVertex { 0 };
bool trimmedToMatch { false };
};
ReweightedDeformers getReweightedDeformers(const size_t numMeshVertices, const std::vector<hfm::SkinCluster> skinClusters, const uint16_t weightsPerVertex = NUM_SKINNING_WEIGHTS_PER_VERTEX);
const uint16_t DEFAULT_SKINNING_WEIGHTS_PER_VERTEX = 4;
ReweightedDeformers getReweightedDeformers(const size_t numMeshVertices, const std::vector<hfm::SkinCluster> skinClusters, const uint16_t weightsPerVertex = DEFAULT_SKINNING_WEIGHTS_PER_VERTEX);
};
#endif // #define hifi_hfm_ModelMath_h

2
libraries/model-baker/src/model-baker/BuildGraphicsMeshTask.cpp
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@ -92,7 +92,7 @@ void buildGraphicsMesh(const hfm::Mesh& hfmMesh, graphics::MeshPointer& graphics
const auto clusterWeightElement = gpu::Element(gpu::VEC4, gpu::NUINT16, gpu::XYZW);
// Record cluster sizes
const size_t numVertClusters = hfmMesh.clusterIndices.size() / hfm::NUM_SKINNING_WEIGHTS_PER_VERTEX;
const size_t numVertClusters = hfmMesh.clusterWeightsPerVertex == 0 ? 0 : hfmMesh.clusterIndices.size() / hfmMesh.clusterWeightsPerVertex;
const size_t clusterIndicesSize = numVertClusters * clusterIndiceElement.getSize();
const size_t clusterWeightsSize = numVertClusters * clusterWeightElement.getSize();

2
libraries/model-baker/src/model-baker/CollectShapeVerticesTask.cpp
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@ -62,7 +62,7 @@ void CollectShapeVerticesTask::run(const baker::BakeContextPointer& context, con
const auto& vertices = mesh.vertices;
const glm::mat4 meshToJoint = cluster.inverseBindMatrix;
const uint16_t weightsPerVertex = hfm::NUM_SKINNING_WEIGHTS_PER_VERTEX;
const uint16_t weightsPerVertex = mesh.clusterWeightsPerVertex;
if (weightsPerVertex == 0) {
for (int vertexIndex = 0; vertexIndex < (int)vertices.size(); ++vertexIndex) {
const glm::mat4 vertexTransform = meshToJoint * glm::translate(vertices[vertexIndex]);