void R2D_InitBackground2D(Render2D *sr, SFNode *node)
{
Background2DStack *ptr = malloc(sizeof(Background2DStack));
memset(ptr, 0, sizeof(Background2DStack));
traversable_setup(ptr, node, sr->compositor);
ptr->surfaces_links = NewChain();
ptr->first_render = 1;
/*setup rendering object for background*/
ptr->node = BaseDrawStack2D(sr, node);
ptr->node->IsPointOver = b2D_point_over;
ptr->node->Draw = DrawBackground;
((M_Background2D *)node)->on_set_bind = b2D_set_bind;
texture_setup(&ptr->txh, sr->compositor, node);
ptr->txh.update_texture_fcnt = UpdateBackgroundTexture;
Node_SetPrivate(node, ptr);
Node_SetPreDestroyFunction(node, DestroyBackground2D);
Node_SetRenderFunction(node, RenderBackground2D);
}
void gl_setup(void) {
// enable depth handling (z-buffer)
glEnable(GL_DEPTH_TEST);
// enable auto normalize
glEnable(GL_NORMALIZE);
// define the background color
glClearColor(0,0,0,1);
glMatrixMode(GL_PROJECTION) ;
glLoadIdentity() ;
gluPerspective(20, 1.0, 0.1, 200.0);
glMatrixMode(GL_MODELVIEW) ;
glLoadIdentity() ; // init modelview to identity
// toggle to smooth shading (instead of flat)
glShadeModel(GL_SMOOTH);
lighting_setup();
texture_setup();
return;
}
