On Fre, 2013-02-22 at 09:05 -0800, Paul Berry wrote: > On 22 February 2013 08:02, Michel Dänzer <[email protected]> wrote: > From: Michel Dänzer <[email protected]> > > Use LDS for calculating the deltas between neighbouring > pixels. Not sure the > sign of the delta is correct for both dimensions (the sign > doesn't seem to > matter for the relevant piglit tests), but it'll be easy to > fix that up if > not. > > > Is this the back-end code that implements the dFdx() and dFdy() GLSL > functions? If so, then there is a piglit test that verifies that the > sign of the delta is correct for both dimensions. It's in > tests/fbo/fbo-deriv.c.
Ah, thanks, I'll look into that one. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
