Hi J-S -- I'm having some second thoughts on this. If I understand correctly (I've heard this, but I haven't confirmed it in the OpenGL spec), using NPOT textures turns off hardware mipmapping; mipmaps must be created on the host, or not used at all. Is that correct?
If so, I'll likely suggest an alternative to my client, which would be a NodeVisitor that resizes any NPOT textures to a power of 2. Maybe this is another candidate for being added to the Optimizer? Let me know what you think. Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com +1 303 859 9466 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jean-Sébastien Guay Sent: Monday, March 02, 2009 3:18 PM To: OpenSceneGraph Users Subject: Re: [osg-users] Set resize NPOT hint -- add to osgUtil Optimizer? Hi Paul, > Hi Robert -- I've got a client with some models that use NPOT textures. > Just loading the models and rendering them causes OSG to resize the > textures to powers of 2, even though NPOT is supported on their > hardware. We need a visitor that will walk the scene graph and call > setResizeNonPowerOfTwoHint(false) on each texture. I was wondering if > there was a larger need for such functionality? And if so, would this > fit in the Optimizer as part of the OPTIMIZE_TEXTURE_SETTINGS flag? This precise functionality was on my todo list of items to do when I have a bit of free time. If you get to it first (or if you can get funding for it) be my guest, but otherwise I think I would have gotten to it in the next 2 months or so. J-S -- ______________________________________________________ Jean-Sebastien Guay [email protected] http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
