VBO stuff by luke

/* this is the bit where i put the data into a vbo */ if(GLext_ARB_vertex_buffer_object) {     if(node->VBODataBuffID)    glDeleteBuffersARB(1, &node->VBODataBuffID);     glGenBuffersARB(1, &node->VBODataBuffID);     glBindBufferARB(GL_ARRAY_BUFFER_ARB, node->VBODataBuffID);     glBufferDataARB(GL_ARRAY_BUFFER_ARB, node->numFaces*24*sizeof(GLfloat), node->data, GL_STATIC_DRAW_ARB); } /* this is how i render (different function) */ if(GLext_ARB_vertex_buffer_object) {     glBindBufferARB(GL_ARRAY_BUFFER_ARB, node->VBODataBuffID);     glInterleavedArrays(GL_T2F_N3F_V3F, 0, 0); } else {     glInterleavedArrays(GL_T2F_N3F_V3F, 0, node->data); } glDrawArrays(GL_TRIANGLES, 0, node->numFaces*3);