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.