On Sun, 2012-06-24 at 11:18 +0200, Olivier Galibert wrote: > That old bug was hidden but the clipper always interpolating in 3d > space no matter what it should have been doing. Now that the > interpolation has been fixed, the bug shows up. > > Fixes bugzilla 51364. > > Signed-off-by: Olivier Galibert <galib...@pobox.com> > > diff --git a/src/mesa/state_tracker/st_program.c > b/src/mesa/state_tracker/st_program.c > index e6664fb..9f98298 100644 > --- a/src/mesa/state_tracker/st_program.c > +++ b/src/mesa/state_tracker/st_program.c > @@ -569,12 +569,12 @@ st_translate_fragment_program(struct st_context *st, > case FRAG_ATTRIB_CLIP_DIST0: > input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; > input_semantic_index[slot] = 0; > - interpMode[slot] = TGSI_INTERPOLATE_LINEAR; > + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; > break; > case FRAG_ATTRIB_CLIP_DIST1: > input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; > input_semantic_index[slot] = 1; > - interpMode[slot] = TGSI_INTERPOLATE_LINEAR; > + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
At first glance this change doesn't seem correct, GLSL 1.30 spec says that clip distances are interpolated linearly. Am I missing something? Vadim > break; > /* In most cases, there is nothing special about these > * inputs, so adopt a convention to use the generic > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
