root/OpenSceneGraph/trunk/include/osgAnimation/RigTransformHardware @ 10693

Revision 10693, 2.9 kB (checked in by cedricpinson, 5 years ago)

From Cedric Pinson, The following commit include:
* Refactore of RigGeometry? to support hardware skinning
* Refactore of Timeline to split Action in differents files
* Add example how to use hardware skinning

Line 
1/*  -*-c++-*-
2 *  Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
3 *
4 * This library is open source and may be redistributed and/or modified under 
5 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
6 * (at your option) any later version.  The full license is in LICENSE file
7 * included with this distribution, and on the openscenegraph.org website.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * OpenSceneGraph Public License for more details.
13 */
14
15#ifndef OSGANIMATION_RIG_TRANSFORM_HARDWARE_H
16#define OSGANIMATION_RIG_TRANSFORM_HARDWARE_H 1
17
18#include <osgAnimation/Export>
19#include <osgAnimation/RigTransform>
20#include <osgAnimation/VertexInfluence>
21#include <osgAnimation/Bone>
22#include <osg/Matrix>
23#include <osg/Array>
24
25namespace osgAnimation
26{
27    class RigGeometry;
28
29    /// This class manage format for hardware skinning
30    class OSGANIMATION_EXPORT RigTransformHardware : public RigTransform
31    {
32    public:
33        typedef osg::Matrix MatrixType;
34        typedef osgAnimation::Bone BoneType;
35        typedef Bone::BoneMap BoneMap;
36        typedef std::vector<osg::ref_ptr<osg::Vec4Array> > BoneWeightAttribList;
37        typedef std::vector<osg::ref_ptr<BoneType> > BonePalette;
38
39        typedef std::vector<osg::Matrix> MatrixPalette;
40        struct IndexWeightEntry
41        {
42            int _boneIndex;
43            float _boneWeight;
44            IndexWeightEntry() { _boneIndex = 0; _boneWeight = 0;}
45            IndexWeightEntry(float index, float weight) { _boneIndex = index; _boneWeight = weight;}
46            int getIndex() const { return _boneIndex; }
47            float getWeight() const { return _boneWeight; }
48        };
49        typedef std::vector<std::vector<IndexWeightEntry> > VertexIndexWeightList;
50
51        osg::Vec4Array* getVertexAttrib(int index);
52        int getNumVertexAttrib();
53
54        osg::Uniform* getMatrixPaletteUniform();
55        void computeMatrixPaletteUniform(const osg::Matrix& transformFromSkeletonToGeometry, const osg::Matrix& invTransformFromSkeletonToGeometry);
56
57        int getNumBonesPerVertex() const;
58        int getNumVertexes() const;
59
60        bool createPalette(int nbVertexes, BoneMap boneMap, const VertexInfluenceSet::VertexIndexToBoneWeightMap& vertexIndexToBoneWeightMap);
61
62
63        virtual bool init(RigGeometry&);
64        virtual void update(RigGeometry&);
65
66        void setShader(osg::Shader*);
67    protected:
68
69        BoneWeightAttribList createVertexAttribList();
70        osg::Uniform* createVertexUniform();
71
72        int _bonesPerVertex;
73        int _nbVertexes;
74        VertexIndexWeightList _vertexIndexMatrixWeightList;
75        BonePalette _bonePalette;
76        BoneWeightAttribList _boneWeightAttribArrays;
77        osg::ref_ptr<osg::Uniform> _uniformMatrixPalette;
78        osg::ref_ptr<osg::Shader> _shader;
79    };
80}
81
82#endif
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