Did someone manage to write a proper PBR shader for materials like cotton in PBR? Standart roughness/glossines doesn't cut it. It's either looks really rough or plastic. How do you solve this?
Rendering cloth 'properly' in pbr is very complex, its one of a small number of things which can't be properly represented using a 'standard' brdf and pretty much requires custom shader to get it to look right (along with some other things like skin, hair). Something you can try is to use coloured specular on cloth, that…