root/OpenSceneGraph/trunk/include/osgAnimation/MorphGeometry @ 11009

Revision 11009, 5.8 kB (checked in by robert, 4 years ago)

From Cedric Pinson, "Here a list of changes:
Bone now inherit from MatrixTransform?. It simplify a lot the update of
Bone matrix. It helps to have the bone system more generic. eg it's now
possible to have animation data with precomputed bind matrix. The other
benefit, is now the collada plugin will be able to use osgAnimation to
display skinned mesh. Michael Plating did a great work to improve this
aspect, he is working on the collada plugin and should be able to submit
a new version soon.
The RigGeometry? has been refactored so now it works when you save and
reload RigGeometry? because the source is not touched anymore. The
benefit with this update is that it should be now possible to use a
MorphGeometry? as source for a RigGeometry?.

The bad news is that the format has changed, so i have rebuild osg-data
related to osgAnimation data, updated the blender exporter to export to
the new format.
The fbx plugin could be touched about this commit, i dont compile it so
i can't give more information about it.
The bvh plugin has been updated by Wang rui so this one is fixed with
the new code of osgAnimation.
The examples has been updated to work with the new code too...

The example osg-data/example.osg should be remove, it's an old example
that does not work.

For people using blender the blender exporter up to date is here:
http://hg.plopbyte.net/osgexport2/
it will be merge to http://hg.plopbyte.net/osgexport/ as soon as the
modification will be push in the trunk.
"

RevLine 
[9877]1/*  -*-c++-*-
2 *  Copyright (C) 2008 Cedric Pinson <mornifle@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_MORPHGEOMETRY_H
16#define OSGANIMATION_MORPHGEOMETRY_H
17
18#include <osgAnimation/Export>
[11009]19#include <osgAnimation/AnimationUpdateCallback>
[9877]20#include <osg/Geometry>
21
22namespace osgAnimation
23{
24
25    class OSGANIMATION_EXPORT MorphGeometry : public osg::Geometry
26    {
27   
28    public:
29   
30        enum Method {
31            NORMALIZED,
32            RELATIVE
33        };
34   
35        class MorphTarget
36        {
37        protected:
38            osg::ref_ptr<osg::Geometry> _geom;
39            float _weight;
40        public:
41            MorphTarget(osg::Geometry* geom, float w = 1.0) : _geom(geom), _weight(w) {}
42            void setWeight(float weight) { _weight = weight; }
43            const float getWeight() const { return _weight; }
44            osg::Geometry* getGeometry() { return _geom.get(); }
45            const osg::Geometry* getGeometry() const { return _geom.get(); }
46            void setGeometry(osg::Geometry* geom) { _geom = geom; }
47        };
48
49        typedef std::vector<MorphTarget> MorphTargetList;
50
51        struct UpdateVertex : public osg::Drawable::UpdateCallback
52        {
53            virtual void update(osg::NodeVisitor*, osg::Drawable* drw)
54            {
55                MorphGeometry* geom = dynamic_cast<MorphGeometry*>(drw);
56                if (!geom)
57                    return;
58
59                geom->transformSoftwareMethod();
60            }
61        };
62
63        MorphGeometry();
64        MorphGeometry(const osg::Geometry& b);
65        MorphGeometry(const MorphGeometry& b, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
66
67        virtual osg::Object* cloneType() const { return new MorphGeometry(); }
68        virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new MorphGeometry(*this,copyop); }
69        virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const MorphGeometry*>(obj)!=NULL; }
70        virtual const char* libraryName() const { return "osgAnimation"; }
71        virtual const char* className() const { return "MorphGeometry"; }
72
73        virtual void transformSoftwareMethod();
74       
75        /** Set the morphing method. */
76        void setMethod(Method method) { _method = method; }
77        /** Get the morphing method. */
78        inline Method getMethod() const { return _method; }
79       
80        /** Set flag for morphing normals. */
81        void setMorphNormals(bool morphNormals) { _morphNormals = morphNormals; }
82        /** Get the flag for morphing normals. */
83        inline bool getMorphNormals() const { return _morphNormals; }
84       
85        /** Add a \c MorphTarget to the \c MorphGeometry.
86          * If \c MorphTarget is not \c NULL and is not contained in the \c MorphGeometry
87          * then increment its reference count, add it to the MorphTargets list and
88          * dirty the bounding sphere to force it to be recomputed on the next
89          * call to \c getBound().
[10056]90          * @param morphTarget The \c MorphTarget to be added to the \c MorphGeometry.
[10504]91          * @param weight The weight to be added to the \c MorphGeometry.
[9877]92          * @return  \c true for success; \c false otherwise.
93        */
94        virtual void addMorphTarget( osg::Geometry *morphTarget, float weight = 1.0 ) { _morphTargets.push_back(MorphTarget(morphTarget, weight)); _dirty = true; }
95       
96        void setWeight(unsigned int index, float morphWeight)
97        {
98            if (index < _morphTargets.size())
99            {
100                _morphTargets[index].setWeight(morphWeight);
101                dirty();
102            }
103        }
104
105        /** Set the MorphGeometry dirty.*/
106        void dirty() { _dirty = true; }
107       
108        /** Get the list of MorphTargets.*/
109        const MorphTargetList& getMorphTargetList() const { return _morphTargets; }
110
111        /** Get the list of MorphTargets. Warning if you modify this array you will have to call dirty() */
112        MorphTargetList& getMorphTargetList() { return _morphTargets; }
113       
114        /** Return the \c MorphTarget at position \c i.*/
115        inline const MorphTarget& getMorphTarget( unsigned int i ) const { return _morphTargets[i]; }
116
117        /** Return the \c MorphTarget at position \c i.*/
118        inline MorphTarget& getMorphTarget( unsigned int i ) { return _morphTargets[i]; }
119
120    protected:
121        /// Do we need to recalculate the morphed geometry?
122        bool _dirty;
123
124        Method          _method;
125        MorphTargetList _morphTargets;
126       
127        std::vector<osg::Vec3> _positionSource;
128        std::vector<osg::Vec3> _normalSource;
129       
130        /// Do we also morph between normals?
131        bool _morphNormals;
132    };
133   
[10518]134    class OSGANIMATION_EXPORT UpdateMorph : public AnimationUpdateCallback<osg::NodeCallback>
[9877]135    {
136    protected:
137        std::map<int, osg::ref_ptr<osgAnimation::FloatTarget> > _weightTargets;
138   
139    public:
140
141        META_Object(osgAnimation, UpdateMorph);
142
143        UpdateMorph(const std::string& name = "");
144        UpdateMorph(const UpdateMorph& apc,const osg::CopyOp& copyop);
145
146        /** Callback method called by the NodeVisitor when visiting a node.*/
147        virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
148        bool needLink() const;
149        bool link(osgAnimation::Channel* channel);
150    };
151
152}
153
154#endif
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