Framebuffer fresnel_lookup_fbo((COLOR_ATTACHMENT,RG8));
fresnel_lookup_fbo.attach(COLOR_ATTACHMENT, *fresnel_lookup);
Renderer renderer;
+ renderer.begin();
renderer.set_framebuffer(&fresnel_lookup_fbo);
renderer.set_shader_program(&shprog, &shdata);
mesh.draw(renderer);
+ renderer.end();
return *fresnel_lookup;
}