Patch D3205 by Kanzaki Wataru Only implemented in Eevee for now. Collapse a closure to RGBA so we can do NPR stuff on the resulting color. Use an emission shader to convert the color back to a closure. Doing this will break PBR and will kill any SSR and SSS effects the shader the shader rely on. That said screen space refraction and ambient occlusion are supported due to the way they are implemented.