[Sidefx-houdini-list] where are the default shadow shaders?

Szymon Kapeniak szymon.kapeniak at gmail.com
Tue Oct 27 17:56:47 EDT 2009


ups, I didn't understand you. If you add VEX Shadow shader in Shops, this is
apparently the code used in default light. It's usually saved in
OPLibShopVMantra.otl.



2009/10/27 Robert Kelly <isstuff at gmail.com>

> yes i am doing that now i just want to know where the original shadow
> shader
> code are so i can add to them in staid of reinventing the wheel.
>
> 2009/10/27 Szymon Kapeniak <szymon.kapeniak at gmail.com>
>
> > The simple way is to add "shop_shadowpath" property to a light and apply
> > own
> > shader this way. Houdini assigns shader to default lights via light
> > wranglers scripts (check soho folder in $HFS). Default light uses
> > v_rayshadow shader I suppose.
> >
> > You could install modified version of that shader in a session, replacing
> > default shader, but this way you won't have an access to custom
> parameters
> > on a shader (without modifying both light params and soho script or
> > creating
> > new light definition type) .
> >
> >
> > hope this helps,
> > skk.
> >
> > 2009/10/27 Robert Kelly <isstuff at gmail.com>:
> > > Hi people.
> > >
> > > where are the default shadow shaders?
> > >
> > > if i want to tweak the ray trace shadow shader where can i find its VFL
> > code
> > > so i can change it?
> > >
> > > thanks
> > >
> > > Robert Kelly.
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