Glossiness mode for AlSurface

[LudvikKoutny]

Hi,

I'd like to see option for AlSurface to swap roughness for glossiness. While I do like to use AlSurface, the roughness is so counter-intuitive concept for me that it always gives me really hard time to get my materials right. It's easy as long as no maps are involved, but as soon as I try to tweak any glosiness map in roughness mode, everything falls apart, and it takes many times longer to get at least acceptable results.

IMHO roughness instead of glossiness was the worst decision in the recent history of CG.

[Morbid Angel]

Isn't roughness just the inverted value of glossiness? where glossy of 1 is full sharp reflection like mirror, roughness of 0 is the same thing. So you just need to inverse the map and curve which is adjusting the map contrast.

[LudvikKoutny]

Isn't roughness just the inverted value of glossiness? where glossy of 1 is full sharp reflection like mirror, roughness of 0 is the same thing. So you just need to inverse the map and curve which is adjusting the map contrast.

Yes, in theory yes, but in practice, even if I put invert output map just before the roughness, still when I tweak it, it just doesn't behave well, it may be placebo, but in this case the strongest one I've seen. It just really takes a long time to get something at least OK looking with roughness, where as it takes just a few seconds to tweak intuitive glossiness.

[Bigguns]

Yes, in theory yes, but in practice, even if I put invert output map just before the roughness, still when I tweak it, it just doesn't behave well, it may be placebo, but in this case the strongest one I've seen. It just really takes a long time to get something at least OK looking with roughness, where as it takes just a few seconds to tweak intuitive glossiness.

totally agree with you.. and I don't know why all of a sudden roughness instead of glossiness is the norm in the indsutry... I don't get it lol.. it's probably coming for game.. for them having roughness is a new thing .. Glossiness is more intuitive whyle roughness is less.. and it don't produce better result.. so there is not a real plus value to switch to roughness...

[Morbid Angel]

I could be wrong here, but roughness is coming from arnold in this case, there is / was always roughness parameters in all arnold shaders including alsurface.

[Bigguns]

I think it comes from what they call PBR from the gaming engine