By removing the Fresnel term (often ommitted from fabric/cloth BRDFs) we can store the DG term for the cloth BRDF in the 3rd channel of the existing DFG LUT.
243 KiB
243 KiB
By removing the Fresnel term (often ommitted from fabric/cloth BRDFs) we can store the DG term for the cloth BRDF in the 3rd channel of the existing DFG LUT.