Re: More Anything Goos previews 2005-06-19 - By Eric Winemiller
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RJ,
Noise is the only thing Goos uses as a sub shader. Basically any 3D
based shader will do like Cellular (looks very funky), Fractal Noise,
the Veloute 3D Noise shaders, etc. Normally you'd do something like this
Mixer or Multi Channel Mixer
Source 1-My Clean Shader
Source 2-My Dirty Shader
Blender-Anything Goos
|_Some Kind of Noise
or
Multiplier
Source 1-My Clean Shader
Source 2-Anything Goos
|_Some Kind of Noise
I started down the path when I was first building it of making the
clean, and dirty shaders sub shaders of Goos, but it turned out to be
very restrictive. Letting it return a value so the user could use it to
drive mixers opened up a lot more possibilities.
I posted a screen shot of it in action at
http://groups.yahoo.com/group/Carrara/files/darkandbright.jpg
This is was an experiment during beta to get the look of old stone where
the outer edges are chipped and scuffed exposing fresh stone and the
inner edges are darkened by grime. The top Goos is mixing between the
large value slider and a normal value slider to kick up the brightness
of the outer edges. The bottom Goos uses it's internal Min/Max slider to
darken the inner edges.
Regards,
Eric
ronjurman wrote:
> I saw a reference to a noise sub-shader for variations of fall-off
> with Anything Goos. How will Anything Goos accomodate sub-shaders?
>
> rj
>
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