Projected Texture Advice

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Mark Baranowski (baranowski++at++marklynn.demon.co.uk)
Mon, 16 Jun 1997 11:05:32 GMT

Hi Performers,

I am looking for some advice/info from those of you who are familiar
with the projected texture mode for a pfLightSource.

I want to use this feature to implement a spotlight which is part of a
childs toy. The (very detailed) toy model will contain about 90% of
the triangles in the scene, is untextured and will never be
illuminated by the spotlight. The other 10% of triangles will be
textured.

The man page for pfLightsource says that textured geometry is rendered
twice when using PROJTEX mode. Can I safely assume that the toy model
will not be part of the second pass. If not is there anything I can do
to stop the toy being considered in the second pass (e.g. something
clever with traversal masks and/or traversal mode PFTRAV_MULTIPASS)?

Thanks in advance for any advice,

Mark.

-- 
Mark Baranowski at work (baranowski++at++marklynn.demon.co.uk)
Pera, VR Division. Melton Mowbray, Leics. LE13 0PB. UK.
Tel: +44 (0)1664 501501, Fax: +44 (0)1664 501553
All opinions expressed are my own and should not be viewed
as representing my employer unless stated otherwise.
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