From 8a0fb128c30f7f8defcdd7f98b1ded47c83355f9 Mon Sep 17 00:00:00 2001
From: Roland Scheidegger <rscheidegger@gmx.ch>
Date: Fri, 22 Sep 2006 13:34:24 +0000
Subject: don't skip user clip plane clipping when the current vertex program
 is position invariant.

---
 src/mesa/tnl/t_vb_arbprogram.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/mesa/tnl/t_vb_arbprogram.c')

diff --git a/src/mesa/tnl/t_vb_arbprogram.c b/src/mesa/tnl/t_vb_arbprogram.c
index 0ff26df713a..71fb45dd95c 100644
--- a/src/mesa/tnl/t_vb_arbprogram.c
+++ b/src/mesa/tnl/t_vb_arbprogram.c
@@ -1182,7 +1182,8 @@ do_ndc_cliptest(GLcontext *ctx, struct arb_vp_machine *m)
 
    /* Test userclip planes.  This contributes to VB->ClipMask.
     */
-   if (ctx->Transform.ClipPlanesEnabled && !ctx->VertexProgram._Enabled) {
+   if (ctx->Transform.ClipPlanesEnabled && (!ctx->VertexProgram._Enabled ||
+      ctx->VertexProgram.Current->IsPositionInvariant)) {
       userclip( ctx,
 		VB->ClipPtr,
 		m->clipmask,
-- 
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