20da8e55a8
- Matrix transform nodes were stripped out, and the vertices and normals of each node were transposed by the modelling matrix. My change preserves the matrix transform nodes, so that models can still be articulated by changing the matrices. - Lights were copied from the COIN scenegraph to the OSG scenegraph, but they were not associated with a LightSource node. My change for this creates a Group and adds a LightSource for each Light. - If VRML textures have names, the name is now copied to -- Form Robert Osfild, changed SbString to std::string usage M Inventor/ConvertFromInventor.h M Inventor/ConvertFromInventor.cpp
131 lines
5.6 KiB
C++
131 lines
5.6 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 <Inventor/SbLinear.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 SoCallbackAction::Response preVRMLAppearance(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response postVRMLAppearance(void* data,
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SoCallbackAction* action, const SoNode* node);
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static SoCallbackAction::Response preInfo(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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SbString transformInfoName;
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SbName appearanceName;
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bool inAppearanceWithNoTexture;
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void addMatrixTransform(const std::string& name, SbVec3f axis, float angle, SbVec3f center, SbVec3f trans, SbVec3f scale);
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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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osg::ref_ptr<osg::Group> lightGroup;
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};
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#endif
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