minor thing - mtlReflectGlossiness not supported by SSS2 shader

[joconnell]

Hi Folks,

Just as a thing I sometimes use this channel to optimize renders but it's unsupported by the fastSSS and FastSSS2 shaders. No major biggy but thought I'd mention it.

Cheers,

John

[svetlozar.draganov]

Thanks for the pointer - not sure if this is a bug or limitation of the SSS material but I'll add it into our system.