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209e139aa8
The double buffering is an implementation detail so it should be handled as such, rather than mandating the scene graph to be structured in a certain way. Override accept(NodeVisitor&) instead of using callbacks.
91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
#ifndef OPENMW_COMPONENTS_NIFOSG_RIGGEOMETRY_H
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#define OPENMW_COMPONENTS_NIFOSG_RIGGEOMETRY_H
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#include <osg/Geometry>
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#include <osg/Matrixf>
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namespace SceneUtil
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{
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class Skeleton;
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class Bone;
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/// @brief Mesh skinning implementation.
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/// @note A RigGeometry may be attached directly to a Skeleton, or somewhere below a Skeleton.
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/// Note though that the RigGeometry ignores any transforms below the Skeleton, so the attachment point is not that important.
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/// @note The internal Geometry used for rendering is double buffered, this allows updates to be done in a thread safe way while
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/// not compromising rendering performance. This is crucial when using osg's default threading model of DrawThreadPerContext.
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class RigGeometry : public osg::Drawable
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{
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public:
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RigGeometry();
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RigGeometry(const RigGeometry& copy, const osg::CopyOp& copyop);
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META_Object(SceneUtil, RigGeometry)
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// At this point compileGLObjects() remains unimplemented, hard to avoid race conditions
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// and there is limited value in compiling anyway since the data will change again for the next frame
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struct BoneInfluence
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{
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osg::Matrixf mInvBindMatrix;
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osg::BoundingSpheref mBoundSphere;
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// <vertex index, weight>
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std::map<unsigned short, float> mWeights;
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};
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struct InfluenceMap : public osg::Referenced
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{
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std::map<std::string, BoneInfluence> mMap;
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};
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void setInfluenceMap(osg::ref_ptr<InfluenceMap> influenceMap);
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/// Initialize this geometry from the source geometry.
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/// @note The source geometry will not be modified.
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void setSourceGeometry(osg::ref_ptr<osg::Geometry> sourceGeom);
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osg::ref_ptr<osg::Geometry> getSourceGeometry();
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virtual void accept(osg::NodeVisitor &nv);
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private:
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void cull(osg::NodeVisitor* nv);
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void updateBounds(osg::NodeVisitor* nv);
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osg::ref_ptr<osg::Geometry> mGeometry[2];
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osg::Geometry* getGeometry(unsigned int frame) const;
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osg::ref_ptr<osg::Geometry> mSourceGeometry;
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osg::ref_ptr<osg::Vec4Array> mSourceTangents;
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Skeleton* mSkeleton;
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osg::ref_ptr<osg::RefMatrix> mGeomToSkelMatrix;
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osg::ref_ptr<InfluenceMap> mInfluenceMap;
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typedef std::pair<Bone*, osg::Matrixf> BoneBindMatrixPair;
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typedef std::pair<BoneBindMatrixPair, float> BoneWeight;
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typedef std::vector<unsigned short> VertexList;
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typedef std::map<std::vector<BoneWeight>, VertexList> Bone2VertexMap;
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Bone2VertexMap mBone2VertexMap;
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typedef std::map<Bone*, osg::BoundingSpheref> BoneSphereMap;
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BoneSphereMap mBoneSphereMap;
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unsigned int mLastFrameNumber;
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bool mBoundsFirstFrame;
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bool initFromParentSkeleton(osg::NodeVisitor* nv);
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void updateGeomToSkelMatrix(const osg::NodePath& nodePath);
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};
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}
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#endif
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