Hi Lucie,
I haven't tried it out but it looks like in the inner for loop, numSegments is
defining how many panels it takes to complete a circle. If you iterate only
until numSegments/2 it might give what you're looking for?
Code:
for(unsigned int topi=0; topi < numSegments/2;
++topi,angle+=angleDelta,texCoord+=texCoordHorzDelta) {...}
Tom
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=35706#35706
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