93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
/**
|
|
* Copyright (c) 2014-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <fstream>
|
|
#include <string>
|
|
#include <set>
|
|
#include <map>
|
|
#include <unordered_map>
|
|
#include <vector>
|
|
#include <algorithm>
|
|
|
|
#include "FBX2glTF.h"
|
|
|
|
class FbxSkinningAccess
|
|
{
|
|
public:
|
|
|
|
static const int MAX_WEIGHTS = 4;
|
|
|
|
FbxSkinningAccess(const FbxMesh *pMesh, FbxScene *pScene, FbxNode *pNode);
|
|
|
|
bool IsSkinned() const
|
|
{
|
|
return (vertexJointWeights.size() > 0);
|
|
}
|
|
|
|
int GetNodeCount() const
|
|
{
|
|
return (int) jointNodes.size();
|
|
}
|
|
|
|
FbxNode *GetJointNode(const int jointIndex) const
|
|
{
|
|
return jointNodes[jointIndex];
|
|
}
|
|
|
|
const long GetJointId(const int jointIndex) const
|
|
{
|
|
return jointIds[jointIndex];
|
|
}
|
|
|
|
const FbxMatrix &GetJointSkinningTransform(const int jointIndex) const
|
|
{
|
|
return jointSkinningTransforms[jointIndex];
|
|
}
|
|
|
|
const FbxMatrix &GetJointInverseGlobalTransforms(const int jointIndex) const
|
|
{
|
|
return jointInverseGlobalTransforms[jointIndex];
|
|
}
|
|
|
|
const long GetRootNode() const
|
|
{
|
|
assert(rootIndex != -1);
|
|
return jointIds[rootIndex];
|
|
}
|
|
|
|
const FbxAMatrix &GetInverseBindMatrix(const int jointIndex) const
|
|
{
|
|
return inverseBindMatrices[jointIndex];
|
|
}
|
|
|
|
const Vec4i GetVertexIndices(const int controlPointIndex) const
|
|
{
|
|
return (!vertexJointIndices.empty()) ?
|
|
vertexJointIndices[controlPointIndex] : Vec4i(0, 0, 0, 0);
|
|
}
|
|
|
|
const Vec4f GetVertexWeights(const int controlPointIndex) const
|
|
{
|
|
return (!vertexJointWeights.empty()) ?
|
|
vertexJointWeights[controlPointIndex] : Vec4f(0, 0, 0, 0);
|
|
}
|
|
|
|
private:
|
|
int rootIndex;
|
|
std::vector<long> jointIds;
|
|
std::vector<FbxNode *> jointNodes;
|
|
std::vector<FbxMatrix> jointSkinningTransforms;
|
|
std::vector<FbxMatrix> jointInverseGlobalTransforms;
|
|
std::vector<FbxAMatrix> inverseBindMatrices;
|
|
std::vector<Vec4i> vertexJointIndices;
|
|
std::vector<Vec4f> vertexJointWeights;
|
|
};
|