Robert, I have an ATI Mobility Radeon 9800.
Andrew -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, June 09, 2006 11:03 AM To: osg users Subject: Re: [osg-users] osgEphemeris Culling Hi Andrew, What graphics hardware do you have? Robert. On 6/9/06, Andrew Weitz <[EMAIL PROTECTED]> wrote: > Mike, > > I am definitely seeing a rendering problem with user-defined clip > planes. It's actually dependent on the radius of my EphemerisModel. If > I set the sky dome radius to the default value (distance from earth to > moon) and set the far plane past the radius, I get random black polygons > appearing on my screen when I move around. However, if I set the sky > dome radius to a smaller value (like 10000) and then set the far plane > past that, I don't get any of the weird rendering artifacts. Is this > what you were seeing? > > I'm still not happy with my solution to this problem. Ideally, I want > to set my far plane to a value smaller than the radius of the sky dome. > However, I cannot find a good way to do this. Hopefully Don will be > able to provide a solution when he returns. > > Andrew > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike Weiblen > Sent: Thursday, June 08, 2006 11:21 PM > To: osg users > Subject: Re: [osg-users] osgEphemeris Culling > > Hi, > I see you have an ATI card. If you crank up the OSG notify level to > INFO, do > you see any messages about difficulties building the GLSL shaders? My > own ATI > Mobility 9600 apparently has trouble with the user clip planes in > osgEphemeris' > shaders, which messes up the rendering. > just a thought > -- mew > > > Andrew Weitz wrote: > > Thank you for the code David. Unfortunately, I was not able to get it > > working. It just turned my whole screen black. All the models were > > there, I just couldn't see them. > > > > > > > > What I ended up doing was setting my far clipping plane past the > extents > > of the EphemerisModel. I am not very happy with the solution, but it > > seems to work because 99% of the objects in my scene are PagedLODs. > > Since I can control the loading/unloading of the PagedLODs via the > > setRange() function, my scene does not get cluttered even with a very > > far clipping plane. > > > > > > > > Andrew > > > > > > > > > ------------------------------------------------------------------------ > > > > *From:* [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] *On Behalf Of *David > Spilling > > *Sent:* Thursday, June 08, 2006 6:08 AM > > *To:* osg users > > *Subject:* Re: [osg-users] osgEphemeris Culling > > > > > > > > Andrew, > > > > Class attached. I don't use osgEphemeris (yet) so don't know exactly > how > > this might interact with it. My graph from bottom to top looks like : > > > > Sphere - DepthFunction(always), depthRange(1.0,1.0), Sky texture map, > > fog and lighting off > > | > > MoveEarthySkyTransform (or similar type thing which is probably > already > > in osgEphemeris) > > | > > ExtentsCamera > > | > > Rest of scene > > > > I also do > > extentsCamera->setRenderOrder(osg::CameraNode::PRE_RENDER); > > > > > extentsCamera->setRenderTargetImplementation(osg::CameraNode::FRAME_BUFF > ER); > > > extentsCamera->setClearMask(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); > > and put a ClearNode with RequiresClear(false) off the root node to > > prevent the "main renderbin" from clearing the screen again. > > > > to place the sky first. Unfortunately I think this means pixel > overdraw > > (you're drawing the sky behind objects) which is bad if you have > > expensive atmosphere shaders, but I didn't find anyway around this. > > > > Hope that's useful. > > > > David > > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > 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/
