Hi Jason, Thanks for the explanation, I've now merged your changes, but kept the original init() which is called before your changes as this will be more in keeping with the other set methods. Changes and now checked into SVN.
Robert. On Fri, Aug 15, 2008 at 6:53 PM, Jason Beverage <[EMAIL PROTECTED]> wrote: > Hi Robert, > > There are a couple of issues at play actually. I've been dealing with quite > a few buggy graphics card drivers lately. This particular one is an HP ATI > Radeon Mobility x600. It reports that GL_EXT_framebuffer_object is > supported, but when OSG tries to use it, it crashes. > > To try to debug this, I was trying to manually set the render target > implementation of the OverlayNode to PIXEL_BUFFER and PIXEL_BUFFER_RTT to > see if they would resolve the problem. I then noticed that because the > OverlayData is cached that calling "init()" was not propogating the changes > down to the OverlayData objects. > > Disabling the extension frame_buffer_object extension using the > setGLExtensionDisableString method as you suggested for my issues with VBO's > with the Intel 945GM also works in this situation, but it is still a problem > that setRenderTargetImplementation doesn't work correctly, which is what my > fix was trying to solve. > > Thanks! > > Jason > > On Fri, Aug 15, 2008 at 12:20 PM, Robert Osfield <[EMAIL PROTECTED]> > wrote: >> >> Hi Jason, >> >> On Thu, Aug 7, 2008 at 5:40 PM, Jason Beverage <[EMAIL PROTECTED]> >> wrote: >> > I've got a few machines that OSG incorrectly believes support >> > FRAME_BUFFER_OBJECTS so I am manually trying to set the >> > renderTargetImplementation to PIXEL_BUFFER or PIXEL_BUFFER_RTT. >> >> Could you explain this in more detail. Does the OpenGL driver declare >> it supports but doesn't? Do you think this is an OSG bug or a driver >> bug? >> >> The reason why I ask this is that it sounds like you are trying to fix >> one problem that also needs fixing elsewhere. >> >> >> > I noticed >> > that this call wasn't setting the camera's overlay data properly because >> > the >> > setRenderTargetImplementation simply calls init() which only does >> > anything >> > for OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY. Any subsequent calls to >> > getOverlayData will simply return the cached OverlayData instead of >> > setting >> > it up. >> >> Just reviewing the code I notice the lack of anything been done in >> most modes. This suggests that perhaps we should be adding more to >> these methods to make sure all parameters are propagated correctly. >> >> Robert. >> _______________________________________________ >> osg-submissions mailing list >> [email protected] >> >> http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org > > > _______________________________________________ > osg-submissions mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org > > _______________________________________________ osg-submissions mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
