d35d8d0fa8
"I was working on a new version of Inventor plugin. It was inspired by the need to get correct and high quality conversion, so I verified the plugin on complex models and made number of serious fixes: - the geometry is not two times on the output file (!) - SoVRMLImageTexture: VRML texture support was rewritten according to Inventor programming practices, since it does not worked correctly on many models (Anyway, thanks for Gerrick Bivins to introduce it.) - osg::ref wrong usage related crash fixed - code cleaning and texture code overhaul - LOD fixes - appended README.txt with all the contributors I was able to get from SVN logs"
118 lines
4.9 KiB
C++
118 lines
4.9 KiB
C++
#ifndef _CONVERTFROMINVENTOR_H_
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#define _CONVERTFROMINVENTOR_H_
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#include <osg/Group>
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#include <osg/Geometry>
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#include <osg/PrimitiveSet>
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#include <osg/Texture2D>
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#include <osg/Light>
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#include <Inventor/actions/SoCallbackAction.h>
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#include <vector>
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#include <stack>
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class ConvertFromInventor
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{
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public:
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ConvertFromInventor();
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~ConvertFromInventor();
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osg::Node* convert(SoNode* rootIVNode);
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private:
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// Callback functions for converting inventor scene graph to osg
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// scene graph
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static SoCallbackAction::Response preShape(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response postShape(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response preGroup(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response postGroup(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response preTexture(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response preLight(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response preRotor(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response prePendulum(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response preShuttle(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response postLOD(void* data,
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SoCallbackAction* action, const SoNode* node);
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///Callback for VRMLImageTexture
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///\param data The pointer to ConvertFromInventor object
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///\param action The action handling class
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///\param node The current VRMLImageTexture node
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static SoCallbackAction::Response preVRMLImageTexture(void* data,
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SoCallbackAction* action, const SoNode* node);
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static void addTriangleCB(void* data, SoCallbackAction* action,
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const SoPrimitiveVertex *v0,
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const SoPrimitiveVertex *v1,
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const SoPrimitiveVertex *v2);
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static void addLineSegmentCB(void* data, SoCallbackAction* action,
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const SoPrimitiveVertex *v0,
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const SoPrimitiveVertex *v1);
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static void addPointCB(void* data, SoCallbackAction* action,
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const SoPrimitiveVertex *v0);
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private:
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void addVertex(SoCallbackAction* action, const SoPrimitiveVertex* v,
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int index);
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osg::ref_ptr<osg::StateSet> getStateSet(SoCallbackAction* action);
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osg::Texture2D* convertIVTexToOSGTex(const SoNode* soNode,
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SoCallbackAction* action);
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void transformLight(SoCallbackAction* action, const SbVec3f& vec,
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osg::Vec3& transVec);
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// OSG doesn't seem to have a transpose function for matrices
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void transposeMatrix(osg::Matrix& mat);
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private:
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// Normal and color binding
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osg::Geometry::AttributeBinding normalBinding;
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osg::Geometry::AttributeBinding colorBinding;
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// List of vertices, normals, colors and texture coordinates
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std::vector<osg::Vec3> vertices;
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std::vector<osg::Vec3> normals;
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std::vector<osg::Vec4> colors;
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std::vector<osg::Vec2> textureCoords;
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// Num of primitive and primitive type
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int numPrimitives;
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osg::PrimitiveSet::Mode primitiveType;
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// Vertex ordering
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enum VertexOrder { CLOCKWISE, COUNTER_CLOCKWISE };
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VertexOrder vertexOrder;
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// Stack of group nodes (used to build the scene graph)
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std::stack<osg::Group* > groupStack;
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// Stack of texture nodes (used for attaching the right texture to the
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// geosets). Supported types are SoTexture2 and SoVRMLImageTexture for now.
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std::stack<const SoNode*> soTexStack;
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// Mapping from SoTexture2 and SoVRMLImageTexture to already converted
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// osg::Texture2D - avoids duplication of same texture objects
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std::map<const SoNode*, osg::Texture2D*> ivToOsgTexMap;
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// Stack to maintain the list of lights at each level of the
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// scenegraph
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typedef std::vector<osg::Light *> LightList;
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std::stack<LightList> lightStack;
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osg::ref_ptr<osg::MatrixTransform> _root;///<The root node;
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};
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#endif
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