Interesting. So could this be a bug in osg? Did you try to query GL_MAX_TEXTURE_UNITS and check if it says 4 ? I wonder if this value does not only mean maximum number of multitexture units, but also that only the lowest 4 units are capable of beeing used for multitexturing! This would kind of be an answer...
Wojtek wrote: > Hi Daniel, > > I confirm your observation. I, however, do not agree that its a TexGen > problem. Frankly I do not know what it is, and I had no time to investigate, > but I think its maybe relate to TexEnv settings. I only made a following > test: I zeroed a spotlight texture (memset( image->data(), 0, > image->getTotalSizeInBytes() );). In this case no light should be cast on > terrain no matter if texgen is set or not, because texcoords should not > matter if texture is black everywhere. Yet the problem is the same. For > stages above 3 terrain is brightly lit. So it looks to me like an issue with > applying or blending the texture on stage 4 and more... Its not a problem of > coord generation its the problem of texture not used correctly... > > > Cheers, > Wojtek > > > > 2013/12/16 Daniel Schmid < ()> > > > Hi Wojtek, would you mind doing the simple test with the sample program > > osgspotlight and the modifications I documented? I wonder if you get the > > same different results as soon as you use texture units from 4 and above. > > > > Cheers, > > Daniel > > > > ------------------ > > Read this topic online here: > > > > http://forum.openscenegraph.org/viewtopic.php?p=57677#57677 > > (http://forum.openscenegraph.org/viewtopic.php?p=57677#57677) > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > () > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > (http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org) > > > > > > > > > ------------------ > Post generated by Mail2Forum ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57679#57679 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
