diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_clip_util.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_clip_util.c b/src/mesa/drivers/dri/i965/brw_clip_util.c index a12dab6b350..15abe166848 100644 --- a/src/mesa/drivers/dri/i965/brw_clip_util.c +++ b/src/mesa/drivers/dri/i965/brw_clip_util.c @@ -160,8 +160,14 @@ void brw_clip_interp_vertex( struct brw_clip_compile *c, brw_MOV(p, deref_4f(dest_ptr, delta), brw_imm_f(1)); else brw_MOV(p, deref_4f(dest_ptr, delta), deref_4f(v0_ptr, delta)); - } else if (vert_result == VERT_RESULT_PSIZ) { - /* PSIZ doesn't need interpolation */ + } else if (vert_result == VERT_RESULT_PSIZ || + vert_result == VERT_RESULT_CLIP_DIST0 || + vert_result == VERT_RESULT_CLIP_DIST1) { + /* PSIZ doesn't need interpolation because it isn't used by the + * fragment shader. CLIP_DIST0 and CLIP_DIST1 don't need + * intepolation because on pre-GEN6, these are just placeholder VUE + * slots that don't perform any action. + */ } else if (vert_result < VERT_RESULT_MAX) { /* This is a true vertex result (and not a special value for the VUE * header), so interpolate: |