[Sidefx-houdini-list] windowing shadows in mantra

Andrew D Lyons tstexture at gmail.com
Wed Aug 25 15:24:52 EDT 2010


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?



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

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