Hi All 
I’ve setup just a head mesh with some solid color diffuse, normal and roughness.
But I’ve getting some unwanted results while setting up my lighting.
I’m trying to get rid of some sharp shadows, but by changing the source length by as little as 0.001 it gives me some ugly scattering.
I would really appreciate if anyone could guide me towards what the issue is and how I might be able to solve it.
subsurface in a nutshell. it’s the “shadows” of the geometry aka nose. you may have to tweak the subsurface parameters or change the lighting setup. artist gotta make it work.
not sure why the origin of the lamp changed like that tho. source length is a cylinder extension. it should not move but spread across the length. also be aware… the source length is axis aligned. the rotation of the lamp matters.
Thanks for the reply!
I’ll see if changing some parameters or subsurface profile will fix it
any luck with that so far ? I’m running into a very similar issue … as soon as the source radius of the light is above 0 (wich is usual for sun) the SSS give very ugly result with strange very bright spots in unexpected areas
