Setting a Render Image
RED::Object* render_image;
// Create the render image.
RC_TEST( iresmgr->CreateImage2D( render_image, iresmgr->GetState() ) );
// Set the render image to the vrl.
RED::IImage2D* irender_image;
irender_image = render_image->As< RED::IImage2D >();
RC_TEST( irender_image->SetRenderImage( vrl, width, height, 0, 0, RED::TGT_TEX_RECT, iresmgr->GetState() ) );