[Bf-cycles] Addition of roughness baking

[Lukas Stockner]

Wouldn't be too hard I guess, the only problem is that roughness is a 
per-closure property so you'd need to figure out how to combine them to 
a per-shader value.

I guess averaging of the roughnesses of all microfacet closures (and 
weighting by their relative sample weight) should work decently, though.

Apart from that, it's pretty much just copy-pasting and renaming some 
other baking option.


On 01/17/2018 08:20 PM, Matthew Heimlich wrote:
> I'm trying to test the waters here to get some input on how much 
> effort it would take to implement roughness baking for Cycles. 
> Currently it is the only major feature missing for using Cycles to 
> directly author and bake down procedural PBR textures. What kind of 
> effort would it take to get this feature implemented?
>
>
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