retesselated geometry bug?

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Klaus Otto (kotto++at++cae-gmbh.de)
Mon, 27 Oct 1997 16:54:05 +0100


Hi all,

I have a problem in scene with a local light.
At some places in the database I have walls with
a rectangular crossection (front/back/top polygons).
The walls are straight for some 10m and cut say each meter
to provide normals for local lighting.

Now walking along this wall the wall's geometry (and ONLY this)
is shaded real strange. When i highlight the normals in the
ShowTreeMode (perfly derivate), it seems that some
normals are missing though present in MultiGen.
(Yes, I made sure the normals are stored in MG.)
Meanwhile I have set:
   pfdConverterMode( COMPUTE_NORMALS, OFF)
   pfdMesherMode( RETESSELATE, OFF)
but that didn't help.

What helped was reorganizing the wall's geometry into
MultiGen objects for each portion front, back and top
polys.
But this is not the solution for my application because
all of the walls are created automatically, and they are many.

BTW, I read a posting to this list by Scott McMillan (July,2nd)
describing a similar effect but found no reply to it.

So, does anybody have an idea?

Thanks in advance,

  Klaus
 ------------------------------------------------------
| Klaus Otto | |
| CAE Elektronik GmbH | Email: kotto++at++cae-gmbh.de |
| Abt. Systemtechnik | |
| Steinfurt 11 | Tel. : +49-2402-106-456 |
| D-52222 Stolberg | Fax : +49-2402-106-270 |
| Germany | |
 ------------------------------------------------------

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