Effects/HDR/gtao /sim/rendering/hdr/ambient-occlusion/world-radius less-or-equal 8 Shaders/HDR/trivial.vert Shaders/HDR/gtao.frag Shaders/HDR/gbuffer-include.frag gbuffer0_tex sampler-2d 0 depth_tex sampler-2d 1 world_radius float world-radius