HI Jason, Did you disable depth test for this pyramid? If so don't this is why you can see it through the terrain.
Robert. On 2/7/07, Jason <[EMAIL PROTECTED]> wrote:
Attached file: help.JPG Here is the terrain and my pyramid. The tip of the pyramid is actually near the center of the terrain, but as you can see in the picture it looks as if it's off to the side of it. I want the terrain to clip the pyramid so that only the portion above ground is showing. On 2/7/07, Robert Osfield <[EMAIL PROTECTED]> wrote: > Screen shot please :-) > > On 2/7/07, Jason <[EMAIL PROTECTED] > wrote: > > I am using my own SceneView rather than using osgViewer. I have a flat > > terrain. Above the terrain I have an aircraft. The aircraft has a sensor. I > > represent the sensor as a four sided pyramid with the tip of the pyramid at > > the same location as the aircraft. The sensor is angled downwards so that > > the base of the pyramid is extending through the terrain. If I point the > > camera to sit at the tip of the pyramid, I can see the base of the pyramid > > through the terrain, even though the the pyramid is going through the > > terrain. I expect the base of the pyramid to be clipped by the terrain. > > > > > > On 2/7/07, Robert Osfield < [EMAIL PROTECTED] > wrote: > > > Hi Jason, > > > > > > You haven't really provided enough information about how you are > > > setting up your seen, or what results your are getting, or what the > > > results should look like. Without knowing more there's no way to know > > > what might be up or what exactly you are expecting. > > > > > > Robert. > > > > > > On 2/7/07, Jason < [EMAIL PROTECTED]> wrote: > > > > Hey, > > > > > > > > I have a pyramid shaped geometry with an alpha of 0.5 that at some > > point > > > > can be angled downwards so that it extends through the terrain below it. > > The > > > > problem I am having is that I want the terrain to cut off the geometry > > at > > > > the terrain level. Right now, the behavior that it displays is that I > > can > > > > see the entire pyramid when I angle the camera above it and am looking > > > > downward. Any help would be appreciated. > > > > > > > > Thanks, > > > > Jason > > > > > > > > _______________________________________________ > > > > osg-users mailing list > > > > [email protected] > > > > http://openscenegraph.net/mailman/listinfo/osg-users > > > > http://www.openscenegraph.org/ > > > > > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > http://openscenegraph.net/mailman/listinfo/osg-users > > > http://www.openscenegraph.org/ > > > > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > http://openscenegraph.net/mailman/listinfo/osg-users > > http://www.openscenegraph.org/ > > > _______________________________________________ > osg-users mailing list > [email protected] > http://openscenegraph.net/mailman/listinfo/osg-users > http://www.openscenegraph.org/ > _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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