Re: reflecting GeoSets causes shading to malfunciton

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Angus Dorbie (dorbie++at++bitch.reading.sgi.com)
Fri, 7 Feb 1997 11:27:02 +0000


Sounds like you have two sided lighting on but no back face material.

Try turning two sided lighting off and you should be OK since your
surface normals will be reflected in anycase.

Cheers,
Angus.

On Feb 5, 4:37pm, david.heskamp++at++lmco.com wrote:
> Subject: reflecting GeoSets causes shading to malfunciton
> 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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>-- End of excerpt from david.heskamp++at++lmco.com

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