reflecting GeoSets causes shading to malfunciton (fwd)

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SWAPNIL H SHAH (swapnil++at++teil.soft.net)
Thu, 6 Feb 1997 09:39:52 -0530 (IST)

The problem might be that, as u r mirroring the X co-ordinates, your
polygon/face 's front plan goes to back, and so Performer engine HIDES it
from u and so u see is only BLACK..

try to print the normal value or something like that and check that out ;)

regards
-swapnil

According to david.heskamp++at++lmco.com:
> From guest++at++holodeck.csd.sgi.com Thu Feb 6 03:35:46 1997
> From: david.heskamp++at++lmco.com
> To: info-performer++at++sgi.com
> Subject: reflecting GeoSets causes shading to malfunciton
> Date: Wed, 5 Feb 97 16:37:23 EST
> Message-Id: <9702052137.172F98++at++pc1197.ldsa>
> X-Mailer: SelectMAIL 1.2
> X-Status:
>
> Hello Performers:
>
> I have a GeoSet with normals bound per vertex. I am trying to reflect the
> GeoSet across the YZ plane by negating the X-component of all the coords and
> negating the X-component of all the normals. Shading does not work after I
> do this. The geometry is located properly, but the surfaces appear black for
> the most part. Anyone know why?
>
>
> Dave Heskamp
>
>
> Lockheed Martin Tactical Defense Systems
> 1210 Massillon Road
> Akron, Ohio 44315-0001
>
> phone: (330) 796 - 5383
> fax: (330) 796 - 7009
> email: david.heskamp++at++lmco.com
>
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