Rune Petersen wrote: > It turns out I missed something obvious... > > The parameters are passed correctly, I have just not transformed the > vertex.position to the fragment.position
I guess that's the viewport transformation, or maybe a perspective divide followed by viewport transformation. But I think there's a bigger problem here -- somehow you're going to have to arrange for that value to be interpolated over the triangle so that each fragment ends up with the correct position. Maybe they are being interpolated already? I guess it then depends on whether the interpolation is perspective correct so that once transformed you really get the right pixel coordinates rather than just a linear interpolation across the triangle. Keith ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
