/usr/include/osgAnimation/RigTransformSoftware is in libopenscenegraph-dev 3.2.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | /* -*-c++-*-
* Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGANIMATION_RIGTRANSFORM_SOFTWARE
#define OSGANIMATION_RIGTRANSFORM_SOFTWARE 1
#include <osgAnimation/Export>
#include <osgAnimation/RigTransform>
#include <osgAnimation/Bone>
#include <osgAnimation/VertexInfluence>
#include <osg/observer_ptr>
namespace osgAnimation
{
class RigGeometry;
/// This class manage format for hardware skinning
class OSGANIMATION_EXPORT RigTransformSoftware : public RigTransform
{
public:
RigTransformSoftware();
virtual void operator()(RigGeometry&);
class BoneWeight
{
public:
BoneWeight(Bone* bone, float weight) : _bone(bone), _weight(weight) {}
const Bone* getBone() const { return _bone.get(); }
float getWeight() const { return _weight; }
void setWeight(float w) { _weight = w; }
protected:
osg::observer_ptr<Bone> _bone;
float _weight;
};
typedef std::vector<BoneWeight> BoneWeightList;
typedef std::vector<int> VertexList;
class UniqBoneSetVertexSet
{
public:
BoneWeightList& getBones() { return _bones; }
VertexList& getVertexes() { return _vertexes; }
void resetMatrix()
{
_result.set(0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 1);
}
void accummulateMatrix(const osg::Matrix& invBindMatrix, const osg::Matrix& matrix, osg::Matrix::value_type weight)
{
osg::Matrix m = invBindMatrix * matrix;
osg::Matrix::value_type* ptr = m.ptr();
osg::Matrix::value_type* ptrresult = _result.ptr();
ptrresult[0] += ptr[0] * weight;
ptrresult[1] += ptr[1] * weight;
ptrresult[2] += ptr[2] * weight;
ptrresult[4] += ptr[4] * weight;
ptrresult[5] += ptr[5] * weight;
ptrresult[6] += ptr[6] * weight;
ptrresult[8] += ptr[8] * weight;
ptrresult[9] += ptr[9] * weight;
ptrresult[10] += ptr[10] * weight;
ptrresult[12] += ptr[12] * weight;
ptrresult[13] += ptr[13] * weight;
ptrresult[14] += ptr[14] * weight;
}
void computeMatrixForVertexSet()
{
if (_bones.empty())
{
osg::notify(osg::WARN) << this << " RigTransformSoftware::UniqBoneSetVertexSet no bones found" << std::endl;
_result = osg::Matrix::identity();
return;
}
resetMatrix();
int size = _bones.size();
for (int i = 0; i < size; i++)
{
const Bone* bone = _bones[i].getBone();
if (!bone)
{
osg::notify(osg::WARN) << this << " RigTransformSoftware::computeMatrixForVertexSet Warning a bone is null, skip it" << std::endl;
continue;
}
const osg::Matrix& invBindMatrix = bone->getInvBindMatrixInSkeletonSpace();
const osg::Matrix& matrix = bone->getMatrixInSkeletonSpace();
osg::Matrix::value_type w = _bones[i].getWeight();
accummulateMatrix(invBindMatrix, matrix, w);
}
}
const osg::Matrix& getMatrix() const { return _result;}
protected:
BoneWeightList _bones;
VertexList _vertexes;
osg::Matrix _result;
};
template <class V> void compute(const osg::Matrix& transform, const osg::Matrix& invTransform, const V* src, V* dst)
{
// the result of matrix mult should be cached to be used for vertexes transform and normal transform and maybe other computation
int size = _boneSetVertexSet.size();
for (int i = 0; i < size; i++)
{
UniqBoneSetVertexSet& uniq = _boneSetVertexSet[i];
uniq.computeMatrixForVertexSet();
osg::Matrix matrix = transform * uniq.getMatrix() * invTransform;
const VertexList& vertexes = uniq.getVertexes();
int vertexSize = vertexes.size();
for (int j = 0; j < vertexSize; j++)
{
int idx = vertexes[j];
dst[idx] = src[idx] * matrix;
}
}
}
template <class V> void computeNormal(const osg::Matrix& transform, const osg::Matrix& invTransform, const V* src, V* dst)
{
int size = _boneSetVertexSet.size();
for (int i = 0; i < size; i++)
{
UniqBoneSetVertexSet& uniq = _boneSetVertexSet[i];
uniq.computeMatrixForVertexSet();
osg::Matrix matrix = transform * uniq.getMatrix() * invTransform;
const VertexList& vertexes = uniq.getVertexes();
int vertexSize = vertexes.size();
for (int j = 0; j < vertexSize; j++)
{
int idx = vertexes[j];
dst[idx] = osg::Matrix::transform3x3(src[idx],matrix);
}
}
}
protected:
bool init(RigGeometry&);
void initVertexSetFromBones(const BoneMap& map, const VertexInfluenceSet::UniqVertexSetToBoneSetList& influence);
std::vector<UniqBoneSetVertexSet> _boneSetVertexSet;
bool _needInit;
};
}
#endif
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