While it's correct if you use Post Rim in MMM, In MMD the shader uses ADDUV4 (Custom Normals) Rather than the models actual normals, Which causes errors for Genshin models that don't have ADDUV4 to have no Rim Light and if there is an ADDUV4 the Rim doesn't look right.
Manashiku
commented
11 months ago
While it's correct if you use Post Rim in MMM, In MMD the shader uses ADDUV4 (Custom Normals) Rather than the models actual normals, Which causes errors for Genshin models that don't have ADDUV4 to have no Rim Light and if there is an ADDUV4 the Rim doesn't look right.