Re: [osg-users] zbuffer issue

2009-06-15 Thread Robert Osfield
Hi Christian, I really doubt you have a general z-buffer issue, but from the pictures is looks like you have problems with geometry that is overlapping that shouldn't be. Any chance that you are accidentally creating quads that overlap in your code? Robert. On Sun, Jun 14, 2009 at 11:06 PM,

Re: [osg-users] zbuffer issue

2009-06-15 Thread Christian Sam
Hi, thanks for all the reply like colin noted, the render problem vanished as i stripped off the offsets which caused the large coordinates and work now with localized coordinates. if i ever need to display the real coordinates in an text-insert, i can re-add the stripped offset before display

Re: [osg-users] zbuffer issue

2009-06-14 Thread Christian Sam
i forgot three things to mention: 1.) as i mentioned above, i place adjacent trees into one geometry. e.g. a geometries' vertex-array has numberOfAdjacentTrees*8 (=double quads ) entries. but i use only one primitiveSet to construct the geometry. i hope this is okay.

Re: [osg-users] zbuffer issue

2009-06-14 Thread Christian Sam
Sorry, for another posting: i just tested the original one drawable per tree implementation with such large coordinates again and noticed that it also tends to flicker, as well hidden faces were revealed also. i couldn't encounter the outer mentioned problems. thanks in advance, christian