Greetings to all.   I will start posting to Gumroad my smart materials collections.   All materials will be :   Seamless custom PBR accurate materials  (game engines optimized 512 x 512 pixels)   9 Texture Channels Each (depends on material type)        Dermis ( Base colour / Diffuse )    Subdermis    Hypodermis    Ambient Occlusion    Base Color    Bump    Curvature    Normal    Detail_Normal    Diffuse    Displacement    Emissive    Glossiness    Height    Metallic    Opacity    Roughne