[Bf-cycles] Bf-cycles Digest, Vol 25, Issue 15

Dmitry Andreev andcoder at gmail.com
Sat Jun 1 04:44:57 CEST 2013


You can totally create such thing using existing Max and Add nodes easily.
But I don't see how that Clamp is going to help with anything?


On Fri, May 31, 2013 at 11:09 AM, lsscpp <lsscpp at gmail.com> wrote:

> When we put the fresnel in the BSDF node, the main issue is how you
>> mix / layer such BSDF's. I haven't figured out a design yet for more
>> advanced layering of BSDF's. Maybe the BSDF node needs to output some
>> mix / layer weight, or we need a new Layer Shader node, or something
>> else entirely? What would need to be done is look at some layered BSDF
>> models, write down the equations and figure out how we can split that
>> in composable nodes.
>>
>> I'm not familiar enough yet with this stuff to give good advice, would
>> need to do a lot more reading and thinking for that. The design would
>> have to fit in the OSL closure model, where the result of a shader
>> evaluation is a linear combination of closures. If a linear
>> combination is not possible then a special layering closure could be
>> created too, which takes other closures as parameters but I'm not sure
>> if this will be needed.
>>
>> Brecht.
>>
>>
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>>
> Why not have a add-shader node with multiple inputs, a slider for each one
> of them, and a Clamp switch?
>
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>
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