2.8 branch: backport of osgAnimation from svn head 11026.

2010-03-13 20:55:16 +00:00
parent 15fd3bdcc2
commit 38e68ed7f1
84 changed files with 6677 additions and 1331 deletions
--- a/include/osgAnimation/RigTransformHardware
+++ b/include/osgAnimation/RigTransformHardware
@@ -0,0 +1,85 @@
+/*  -*-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_RIG_TRANSFORM_HARDWARE
+#define OSGANIMATION_RIG_TRANSFORM_HARDWARE 1
+
+#include <osgAnimation/Export>
+#include <osgAnimation/RigTransform>
+#include <osgAnimation/VertexInfluence>
+#include <osgAnimation/Bone>
+#include <osg/Matrix>
+#include <osg/Array>
+
+namespace osgAnimation 
+{
+    class RigGeometry;
+
+    /// This class manage format for hardware skinning
+    class OSGANIMATION_EXPORT RigTransformHardware : public RigTransform
+    {
+    public:
+        typedef osg::Matrix MatrixType;
+        typedef osgAnimation::Bone BoneType;
+        typedef std::vector<osg::ref_ptr<osg::Vec4Array> > BoneWeightAttribList;
+        typedef std::vector<osg::ref_ptr<BoneType> > BonePalette;
+
+        typedef std::vector<osg::Matrix> MatrixPalette;
+        struct IndexWeightEntry
+        {
+            int _boneIndex;
+            float _boneWeight;
+            IndexWeightEntry() { _boneIndex = 0; _boneWeight = 0;}
+            IndexWeightEntry(int index, float weight) { _boneIndex = index; _boneWeight = weight;}
+            int getIndex() const { return _boneIndex; }
+            float getWeight() const { return _boneWeight; }
+        };
+        typedef std::vector<std::vector<IndexWeightEntry> > VertexIndexWeightList;
+
+        RigTransformHardware();
+
+        osg::Vec4Array* getVertexAttrib(int index);
+        int getNumVertexAttrib();
+
+        osg::Uniform* getMatrixPaletteUniform();
+        void computeMatrixPaletteUniform(const osg::Matrix& transformFromSkeletonToGeometry, const osg::Matrix& invTransformFromSkeletonToGeometry);
+
+        int getNumBonesPerVertex() const;
+        int getNumVertexes() const;
+
+        bool createPalette(int nbVertexes, BoneMap boneMap, const VertexInfluenceSet::VertexIndexToBoneWeightMap& vertexIndexToBoneWeightMap);
+
+        virtual void operator()(RigGeometry&);
+        void setShader(osg::Shader*);
+
+    protected:
+
+        bool init(RigGeometry&);
+
+        BoneWeightAttribList createVertexAttribList();
+        osg::Uniform* createVertexUniform();
+
+        int _bonesPerVertex;
+        int _nbVertexes;
+        VertexIndexWeightList _vertexIndexMatrixWeightList;
+        BonePalette _bonePalette;
+        BoneWeightAttribList _boneWeightAttribArrays;
+        osg::ref_ptr<osg::Uniform> _uniformMatrixPalette;
+        osg::ref_ptr<osg::Shader> _shader;
+
+        bool _needInit;
+    };
+}
+
+#endif