Re: [osg-users] intersection with quad mesh: only 3 vertices returned

2011-08-06 Thread Torben Dannhauer
Hi all Thanks for your feedback, that turns my vague idea into basic knowledge I can build on to learn more :) I'll continue as soon I'm back from my trip. Thank you! Best regards, Torben ( currently sitting in a peruvian long distance bus with more comfort than many aircrafts -

Re: [osg-users] intersection with quad mesh: only 3 vertices returned

2011-08-02 Thread Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC
Torben, My guess is that the quads are geometrically represented by two triangles with a shared edge. I believe the intersector is returning a ray/triangle intersection so one (that is hit) of the two triangles that make up the quad is being returned. This probably doesn't solve your problem but

Re: [osg-users] intersection with quad mesh: only 3 vertices returned

2011-08-02 Thread Torben Dannhauer
Hi S2LR, I thought QUAD is a OpenGL primitive. Your statement make sence to me. But then OSG hides the substitution by 2 triangles quite good, also in the wiremode of osgViewer the quads are displayed. I thought (even when not to often used as triangles) that quads are natively supported and