[Sidefx-houdini-list] random fur scale

Andy Nicholas andy at andynicholas.com
Tue Feb 12 05:11:47 EST 2008

Thanks for the explanation Fred. Yep, that makes perfect sense.



> Hi,
> a CVex shader is called from a compiled  C++ dso (or dll on windows). It
> is
> written in VEX and let you modify data used by the compiled plugin. It
> offers great flexibility as you don't have to "hard-code" everything in
> C++.
> The fur SOP/Geometry shader  is a good example to look at. The hair
> generation and memory allocation is handled by the C++ plugin, but it
> calls
> two CVex Shaders that can modify hair/points attribute to change the look
> of
> the fur.
> This way, you can write your own kink/frizz funtions in VEX  and let the
> C++
> code handle the "low level" hair generation.
> Hope this makes it a bit clearer,
> Cheers,
> Fred.
> --
> Frederic Valleur | LaMaison
>>Hi guys,
>>Sorry to hijack. Could someone just quickly explain what a CVEX shader
>> is?
>>Not heard of this before. I take it it's different from a VEX shader? Is
>>is a compiled version? What situations would you use it for?

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