[Sidefx-houdini-list] vex shading

herman herman02 at netvigator.com
Tue Feb 18 10:19:47 EST 2014


dear francois,

many thanks, i mainly want to create copfilter at vex, then use that copvex 
filter at img for creating image.
so my intention is to make 2d patterning.

cheers
herman

----- Original Message ----- 
From: "François Duchesneau" <sidefx at trinix.ca>
To: <sidefx-houdini-list at sidefx.com>
Sent: Tuesday, February 18, 2014 9:00 PM
Subject: Re: [Sidefx-houdini-list] vex shading


Hi Herman,

I never had to learn vex because I already knew Renderman Shading
language (rsl). You have more chance to find learning material in RSL.
Only a few function names or parameter order are different but at this
point is just a matter of looking at the vex functions help page and
figure out how to call your vex function instead of the rsl. This is a
good start.

http://www.fundza.com/rman_shaders/surface/

However if you just want to make things happen, you don't have to learn
vex. Instead just use Vop. Once in a while you'll want to use an Inline
Sop (a node that allows you to introduce a piece of code inside your
node based network of functions). You can actually learn from the code
generated by vex if you right click on a Vop Sop for example and click
on View Vex Code.

Good luck.

François

herman wrote:
> hi all,
>
> i want to learn more of houdini vex shading language, i had cmivfx Vex Sop 
> video before, however, i want to go further. Anyone knows any good online 
> tutorial available?
>
> thanks.
>
> herman
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