From 214347fdb4c30dc8bac5d4b9a823458709bc53ea Mon Sep 17 00:00:00 2001
From: "Xiang, Haihao" <haihao.xiang@intel.com>
Date: Fri, 31 Aug 2007 16:50:48 +0800
Subject: i965: Calculate the positional light in homogeneous coordinates. fix
 bug#11009

---
 src/mesa/tnl/t_vp_build.c | 5 +++++
 1 file changed, 5 insertions(+)

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

diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c
index ee1a2498b3..336f3c7a2a 100644
--- a/src/mesa/tnl/t_vp_build.c
+++ b/src/mesa/tnl/t_vp_build.c
@@ -960,6 +960,11 @@ static void build_lighting( struct tnl_program *p )
 	    VPpli = get_temp(p); 
 	    half = get_temp(p);
  
+       /* In homogeneous object coordinates
+        */
+       emit_op1(p, OPCODE_RCP, dist, 0, swizzle1(Ppli, W));
+       emit_op2(p, OPCODE_MUL, Ppli, 0, Ppli, dist);
+
 	    /* Calulate VPpli vector
 	     */
 	    emit_op2(p, OPCODE_SUB, VPpli, 0, Ppli, V); 
-- 
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