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-rw-r--r--src/mesa/drivers/dri/i965/brw_vs_tnl.c5
-rw-r--r--src/mesa/tnl/t_vp_build.c5
2 files changed, 10 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_tnl.c b/src/mesa/drivers/dri/i965/brw_vs_tnl.c
index b69be350a9..339a330448 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_tnl.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_tnl.c
@@ -1003,6 +1003,11 @@ 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
*/
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);