Initial work on new glass shader Grime implementation & let grime cast shadows Blur Allow fogging of grime & glass Fix grime on refraction variant https://files.facepunch.com/ognik/1b0111b1/sbox-dev_VGCbGQv4Tr.jpg Allow tweaking of the specular of the glass for its reflections Delete core glass shader & sbox_glass, new shader becomes glass Fix glass not working properly with tiled rendering off Cleanup & lower default opacity so we don't shadow by default Update some existing glass materials https://files.facepunch.com/ognik/1b0211b1/sbox-dev_QPGRwiTZTq.jpg