[Sidefx-houdini-list] windowing shadows in mantra

Andrew D Lyons tstexture at gmail.com
Thu Aug 26 11:43:31 EDT 2010


Gah! Had to make a new shadow shader and build a new light. Tight
shadow maps though...

On 25 August 2010 12:24, Andrew D Lyons <tstexture at gmail.com> wrote:
> Hi,
>
> With distant lights it becomes desirable to use light window
> parameters to create more localized shadow maps. I've come up with a
> system to compute the window settings to perfectly frame the bounds of
> an object, and mantra will generate the well framed shadow map - but
> it will not re-project that shadow map using the same window settings
> / projection matrix - and so the shadow in the final render is wrong.
>
> Does anyone know of a way to get mantra to shadow correctly when
> windowing is used to generate the shadow maps?
>
> Thanks!
>
> Cheers
>
> --
> =======================================
> Andrew D Lyons | Digital Artist | http://www.tstex.com
> =======================================
>



-- 
=======================================
Andrew D Lyons | Digital Artist | http://www.tstex.com
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