Hi, I am a 3D developer with quiete knowledges. I am use to use OpenGL. For some task I have to use OpenSceneGraph and use VBO inside it. I know I can use osg::Geometry but for some reasons (not to be developped here) I can't. So I need to use VBO directly in my code.
I succeeded (it seems) to make VBO run with a single array (which is an osg array). But anytimes I tried to make it handle a second array, the program crash. Here are some code I can do: Code: osg::State* state = renderInfo.getState(); osg::Drawable::Extensions* extensions = osg::Drawable::getExtensions (renderInfo.getContextID(), true); state->disableAllVertexArrays(); // bind vbo _vbo->bindBuffer (renderInfo.getContextID()); // allocate memory _vertexArray->setVertexBufferObject (_vbo); _attribArray->setVertexBufferObject (_vbo); // set the pointers state->setVertexPointer(_vertexArray.get()); state->setVertexAttribPointer (6, _attribArray.get(), false); // draw glDrawArrays (_GLmode, 0, _vertexArray->size()); _vbo->unbindBuffer(renderInfo.getContextID()); Each time I don't use the _attribArray, the program runs and display things correctly. It is the same if I don't ask _attribArray to use the VBO. But each time I ask it to use the VBO the program crashes. I also tried to tell the buffer size, to explicitly give the buffer data (threw extensions->glBufferData and such), but without any success. Do you know how I could resolve this ? Thank you! Cheers, Silence ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48994#48994 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
