Shadow and projected texture

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pere1++at++cluny.ensam.fr
Wed, 8 Jan 1997 06:15:56 +0000

        Like Scott McMillan and Mark Baranowski, I try to make shadows with
Performer 2.1 and Irix 6.2.

        Remi ARNAUD says:
> OpenGL shadows are not supported by Performer 2.x, but the OpenGL shadow
> extensions are in the patch 1355 for 6.2.

        Is this the solution ? if, it is, ok I will install this patch.

Another problem exists with pfLightSource and PROJTEX . I would like to use
more than one pfLightSource, the documentation says
> PROJTEX lighting requires that a pfTexture be specified with the
> PFLS_PROJ_TEX token to pfLSourceAttr. obj should be an intensity-alpha
> (2-component) pfTexture* with identical intensity and alpha components.
> If lsource is the only pfLightSource in the scene using PROJTEX
lighting,
> the texture may be a full-color, 4-component texture.

        I tried this with 2 projected texture, but the result was that the
scene is saturated even if I set PFLS_INTENSITY token to normalize lighting .
In fact, my second texture seems invisible.

        Help !!! Please

        If somebody have an idea, I have some but not always clever.

Thanks

PS: You could see my application on IMAGINA next February in Monaco. You could
not miss it... See you there

-- 




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