Try using PolygonOffset.
Judd
Vincent Bourdier wrote:
Hi Paul
It is exactly the problem.
I've done some tests with the depth test, and I'm sure that what you
think is the problem.
So now, how to solve it ? If I put "depth = new
osg::Depth(osg::Depth::ALWAYS, 0.0, 1.0);" My plane are always
visible, but nothing can hide them (mountains for example...)
Any suggestion or Idea ?
Thanks
Regards,
Vincent.
2008/9/16 Paul Martz <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>>
If the polygons are very close to the ground and your eye is quite
distant, then it sounds like it's losing the depth test.
-Paul
------------------------------------------------------------------------
*From:* [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>
[mailto:[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>] *On
Behalf Of *Vincent Bourdier
*Sent:* Tuesday, September 16, 2008 5:22 AM
*To:* osg
*Subject:* [osg-users] Culling problem
Hi all,
I have a strange problem : Nodes are moving
(PAT->LOD->Node.ive) depending on a PAT and all the PATs have
the same group for parent.
Theses nodes (planes) have the ground under them but,
sometimes the planes are hidden under the ground.
It happens when the camera it on a top-position (not side or
face ) of the planes and it depend on the point looked by the
camera. Just modifying camera's orientation make then appear.
If the camera if near of the plane nothing happen.
I have checked Z position, but it do not changed anormaly. I
only see a culling problem to have this problem.
Do you have already encountered something similar ?
How to solve this problem ?
See attached files to understand better what it looks like.
thanks,
Regards
Vincent.
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