Steve Baker (steve++at++mred.hti.com)
Mon, 5 Dec 94 11:36:54 -0600
> The state mode PFSTATE_CULLFACE links front face and back face culling to the
> one state variable. I would like to apply overrides to these states
> independently to match some material attribute overrides which I intend
> applying independently. Is there an existing or planned mechanism for
> overriding these properties independently?
IMHO - I feel that face culling should be taken out of the GeoState altogether
and placed in the GeoSet. It's a real pain having to make two different versions
of a GeoState for (say) a brick material because it is to be used on the exterior
of a building and on both sides of a wall. Face culling is typically used to
alter the polygonal geometry of a polygon (ie either single or double-sided) and
that has little or nothing to do with the material/texture/colour properties of
the GeoState.
Perhaps pfCullFace should be applicable to either GeoState or GeoSet: either
like a pfHighlight where the property becomes a property of the GeoSet itself,
or perhaps by having a different primitive type for a double-sided (ie PFCF_OFF)
triangle mesh.
Steve Baker.
=====================================================================
Steve Baker
Hughes Training Inc.
2200 Arlington Downs Road
Arlington, Texas.
TX 76005-6171
steve++at++mred.hti.com (Email)
817-695-2478 (Voice)
817-695-2555 (Fax)
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