On Thu, 1 Jul 1999 15:29:12 +0200, Desiree Hilbring wrote:
>Hi everybody,
>
>I am using GeometryInfo and Triangulator to build shapes from
>Gauss-Krueger-coordinates or geographic coordinates. It works fine
>for the Gauss-Krueger-coordinates, but for the geographic coordinates
>some of my polygons are never rendederd, that means for example I get a
>hole in my world myp, where the USA schould be.
>Any Idea, why this is happening?
>Any help would be appreciated!
>
>Thanks Desiree
>
--------------------------
Hi back,
that's because of some triangles are oriented in the wrong way (clock-wise instead of
counterclock wise). they are not rendered and stay invisible when you see them from
the back side. That means viewing vector and normal vector have same direction.
Turn off culling mode and set BackFaceNormalFlip to true to get both side rendered
and shaped triangles.
Gernot
[EMAIL PROTECTED]
http://www.janet.de
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