- Thu Jun 03, 2021 7:51 pm
caustics and real refraction calculations are nowhere close to what gpu's can render realtime for now. even unreal, which i suppose is the most advanced realtime gpu renderer, can't calculate these realtime. so i imagine it will be a long while before you can see actual ior in gpu based (ie realtime) renderers.
quick edit. i think UE has maybe recently added, or is about to add realistic caustics / refraction.
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