Re: [osg-users] Newbie question about concave polygons

2008-04-24 Thread Glenn Waldron
Rick, Can you post an image of what you are seeing? I ran your code (without the setBoundaryOnly line) and it seems to render correctly. Screenshot is attached. Glenn On Wed, Apr 23, 2008 at 3:34 PM, R Schwantes [EMAIL PROTECTED] wrote: Hi list, I've been a long time lurker. Finally have

Re: [osg-users] Newbie question about concave polygons

2008-04-24 Thread R Schwantes
Thanks for the input. I first tried using GL_TRIANGLES, incorrect output was 2 triangles. Then I read Glenn's response and tried my code on a different computer, and it worked fine. So now I'm left wondering what is wrong with my computer? I deleted osg and rebuilt ver 2.2.0, updated the driver

Re: [osg-users] Newbie question about concave polygons

2008-04-24 Thread Robert Osfield
Hi Rick, On Thu, Apr 24, 2008 at 4:31 PM, R Schwantes [EMAIL PROTECTED] wrote: So now I'm left wondering what is wrong with my computer? I deleted osg and rebuilt ver 2.2.0, updated the driver for my Nvidia GeForce 8600GTS, still no success. Are their any known issues simialr to this?

Re: [osg-users] Newbie question about concave polygons

2008-04-24 Thread Mike Weiblen
from a quick look, it appears your geometry is just two adjacent quads (ie 4 triangles), no? No need to invoke a tesselator for a concave polygon. Just use 3 verts for each of the 4 triangles (12 verts total) and draw as GL_TRIANGLES. cheers -- mew On Wed, Apr 23, 2008 at 2:34 PM, R Schwantes