Hi Robert, Having a Image::buildMipmaps() would be nice to me. I'd handle compressed textures by myself. Please let me know via osg-users...
And having NVTT as an extension could be nice too. What about the KTX/ETC format ( http://www.khronos.org/opengles/sdk/tools/KTX/ )? Are there plans to integrate Khronos' format using libktx? Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ ----- "Robert Osfield" <[email protected]> a écrit : > Hi Sukender, > > My plan is to add a Image::buildMipmaps() functions that will use the > new local gluScaleImage function that no longer requires a graphics > context. However, this function won't support compressed textures as > GLU has never support texture compression, and our integration of GLU > parts into the OSG hasn't magically changed this. > > I am also planning to integrate NVidiaTextureTools as an OSG > plugin/extension which will be able to compliment the GLU functions > and add support for compressed texture formats. This will however > require the NVTT as external dependency. > > I may be able to get on to these tasks next week. > > Robert. > > > On Thu, Nov 4, 2010 at 11:47 AM, Sukender <[email protected]> wrote: > > Hi all, > > > > I need to generate mipmaps from an osg::Image (a 2D image actually, > which may be S3TC-DXTC compressed or not), and I have no OpenGL > context. I just want my image to have mipmaps. Do you know anything > that may help me? > > - Something to get a context without having to realize something, or > with an invisible window? > > - Something to allocate mipmap memory, compute mipmaps, and store > them in the osg::Image? > > > > I guess osg::gluBuild2DMipmaps() is the key, but it needs a context > and process does not appear to be straightforward to me. > > Thanks. > > > > Cheers, > > > > Sukender > > PVLE - Lightweight cross-platform game engine - > http://pvle.sourceforge.net/ > > _______________________________________________ > > 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 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
