On 16.06.2008 18:49, H. Verbeet wrote: > 2008/6/16 Roland Scheidegger <[EMAIL PROTECTED]>: >> From this also follows that it's not possible to use per-vertex fog when >> using fragment programs (or shaders) - or rather mesa's implementation >> doesn't really allow it (since it would overwrite the fogcoord with fog >> factors, but fogcoord might still be accessed freely in a fragment >> program). Maybe that's only of academic interest though and noone really >> abuses fogcoord like that :-). >> > Yes, but the fragment program spec already explicitly states that it > replaces fogging completely. Right. But if drivers are around which allow per-vertex fog (r300, for example) and a fragment program is used, they will get bogus fogcoords with your patch (if fog, despite having no effect really, is enabled).
Roland ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Mesa3d-dev mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
