snoot Posted July 6, 2018 Share Posted July 6, 2018 Hi guys, I'm attempting to get the thickness of an object and use this to blend between two pbr layers - in this case a sharp refractive layer into a sss-y one. I could sample an sdf volume on disk and read the thickness from there. But I'm wondering is there a way to do this at render time. For example, catching the position of a ray entering and exiting a surface with lots of sample. Any ideas? Example scene much appreciated! Thanks. Quote Link to comment Share on other sites More sharing options...
davpe Posted July 8, 2018 Share Posted July 8, 2018 hi, i think you should be pretty much able to get the thickness if you feed an occlusion shader by inverted normals: 1 Quote Link to comment Share on other sites More sharing options...
snoot Posted July 9, 2018 Author Share Posted July 9, 2018 Good shout! I'll give it a go! Thanks @davpe Quote Link to comment Share on other sites More sharing options...
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