In the PBR MAT, it would be handy to be able to send stuff like Specular / Metallic / Roughness / Ambient Occlusion / Height maps to Color Buffers, just like the Phong Mat can send all its maps to all buffers.
In the PBR MAT, it would be handy to be able to send stuff like Specular / Metallic / Roughness / Ambient Occlusion / Height maps to Color Buffers, just like the Phong Mat can send all its maps to all buffers.