art wrote: > > the syntax is exactly the same as on usual texture2D call. So > texture2DLod(sampler, coordinate [,lod]). So in both shaders > luminance_adapted and luminance_mipmap, just change the texture2D calls to > texture2DLod where mipmap level is accessed. >
Hi Art, Just retried the 0.4.2rc1 tag and still no luck... I still don't get what I expect as the average luminance. I'm on Windows7 right now so I'd like to give it a try on WinXP as well. if I get a different behavior I'll let you know. By the way, I don't think that clamping to zero the log values is correct. Even if you keep the negative values, at the last level you'll exp them and this will certainly bring them back to the positive realm. So actually the clamp is introducing an error I think. Luca PS Note that the specs for OGL 3.x say that Texture2D is a deprecated syntax, you should just drop the 2D (also for the Lod version). However that is not solving the issue either... ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27458#27458 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
