Problem with Spotlight on RealityEngine with OpenGL based Performer ?

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Daniela Rainer (rus3d++at++visvr1.rus.uni-stuttgart.de)
Fri, 9 Aug 1996 18:58:32 +0000

Hi,

if I use a spotlight (pfLight) and a material with color mode
PFMTL_CMODE_AMBIENT_AND_DIFFUSE I get a strange shading on RealityEngine. It
works fine on other graphics systems (Extreme, XS).

The primitive type of the geoset is TRISTRIP (not FLAT_TRISTRIP).
In the man pages for pfLight this errors is described only for FLAT_TRISTRIPS.

I use Performer 2.0 and Performer 2.01 with the OpenGL libraries.

Is there a known problem with spotlights in OpenGL or am I doing something
wrong?

Thanks for any ideas
Daniela
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