diff options
| author | Xiang, Haihao <haihao.xiang@intel.com> | 2007-08-31 16:50:48 +0800 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2007-08-31 16:50:48 +0800 |
| commit | 214347fdb4c30dc8bac5d4b9a823458709bc53ea (patch) | |
| tree | 2eb2d4d146e330e5dd02204b9bff43ba70d6b19d /src/mesa | |
| parent | b47c9f8c915ae4ca8c7fa5ee3b6b64f17c38b569 (diff) | |
i965: Calculate the positional light in homogeneous coordinates.
fix bug#11009
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_tnl.c | 5 | ||||
| -rw-r--r-- | src/mesa/tnl/t_vp_build.c | 5 |
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); |