Hi Andy, On 1/03/12 1:27 , Andy Skinner wrote: > Attached is a simple OSG example that, on Mac with nVidia card, seems to show > point > geometry with the Point StateAttribute set causing other geometry to be > clipped. We did > not see this on a Mac with an ATI card. This has been reproduced on the OSG > trunk, but > has been seen on older versions as well. > > The example has a ClipNode, and a Geode with a Point, Line, and Triangle. > When we set > the Point attribute on the StateSet, the Triangle and Line don’t appear. > When we skip > setting the Point attribute, all three Geometry drawables appear.
when I run your example without arguments I see a green line and a red triangle. When running with an argument I see the green line, a red trinangle, and six green discs that are partially occluded by the red triangle. The degree of occlusion varies when the scene is rotated. As I understand your description this is different to your results. This is on a MacBookPro3,1 with NVIDIA GeForce 8600M running Lion 10.7.3 and OSG trunk. > Also, if it turns out to be an issue we would report to nVidia, could we > report it with > an OSG example? In other words, does nVidia have the ability to build OSG > examples, > and have you reported problems to them with OSG to demonstrate? I believe you'll have to report this to Apple, since they do their own drivers (with input from nvidia of course, but still). Hope this helps; let me know if you need anything else. Cheers, /ulrich _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
