I'm not really sure what you are asking. You can export any osg data using the .osg plugin.
osgDB::writeNodeFile(*your_node_or_sub_graph,"your_filename.osg") Then open the file (your_filename.osg) in any text editor and you'll see your mesh data as Primitives and VertexArrays in Geometrys. The primitives will be organized/represented based on how the geometry was created in osg. You can easily write a parser to grab the mesh data from the .osg file. Brian [EMAIL PROTECTED] wrote: ----- To: [email protected] From: "Dusten Sobotta" <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] Date: 10/31/2008 09:49AM Subject: [osg-users] Computing bullet collision models from .3ds files I'm developing a 3d engine that will eventually support exporting collision models from the lowest poly LOD node of a .3ds file for in-game development. The following functions can be used to load (or use existing data in memory) to define the collision box for a .3ds model. btTriangleMesh* trimesh = new btTriangleMesh(); for ( i=0;i<NUM_VERTS_X-1;i++) { for (int j=0;j<NUM_VERTS_Y-1;j++) { trimesh->addTriangle(gVertices[j*NUM_VERTS_X+i],gVertices [j*NUM_VERTS_X+i+1],gVertices[(j+1)*NUM_VERTS_X+i+1]); trimesh->addTriangle(gVertices[j*NUM_VERTS_X+i],gVertices[(j +1)*NUM_VERTS_X+i+1],gVertices[(j+1)*NUM_VERTS_X+i]); } } delete[] gVertices; bool useQuantizedBvhTree = true; btCollisionShape* trimeshShape = new btBvhTriangleMeshShape (trimesh,useQuantizedBvhTree); OR btTriangleIndexVertexArray* indexVertexArrays = new btTriangleIndexVertexArray(totalTriangles, gIndices, indexStride, totalVerts,(btScalar*) &gVertices[0].x(),vertStride); bool useQuantizedAabbCompression = true; trimeshShape = new btBvhTriangleMeshShape (indexVertexArrays,useQuantizedAabbCompression); I've looked at a lot of the osg functions, and can't seem to find a function to export the raw triangle mesh. Do a set of functions exist in osg to handle this? If not, -where- should I make my modifications to support this exportation? Thanks in advance~ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
