diff options
Diffstat (limited to 'src/mesa/tnl')
| -rw-r--r-- | src/mesa/tnl/t_vp_build.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c index f9e5045be71..8b8bb3a173a 100644 --- a/src/mesa/tnl/t_vp_build.c +++ b/src/mesa/tnl/t_vp_build.c @@ -853,7 +853,7 @@ static struct ureg calculate_light_attenuation( struct tnl_program *p, /* Need to add some addtional parameters to allow lighting in object - * space - STATE_SPOT_DIRECTION and STATE_HALF implicitly assume eye + * space - STATE_SPOT_DIRECTION and STATE_HALF_VECTOR implicitly assume eye * space lighting. */ static void build_lighting( struct tnl_program *p ) @@ -942,7 +942,14 @@ static void build_lighting( struct tnl_program *p ) */ VPpli = register_param3(p, STATE_LIGHT, i, STATE_POSITION_NORMALIZED); - half = register_param3(p, STATE_LIGHT, i, STATE_HALF_VECTOR); + if (p->state->light_local_viewer) { + struct ureg eye_hat = get_eye_position_normalized(p); + half = get_temp(p); + emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat); + emit_normalize_vec3(p, half, half); + } else { + half = register_param3(p, STATE_LIGHT, i, STATE_HALF_VECTOR); + } } else { struct ureg Ppli = register_param3(p, STATE_LIGHT, i, @@ -1325,14 +1332,16 @@ static void build_pointsize( struct tnl_program *p ) struct ureg out = register_output(p, VERT_RESULT_PSIZ); struct ureg ut = get_temp(p); + /* dist = |eyez| */ + emit_op1(p, OPCODE_ABS, ut, WRITEMASK_Y, swizzle1(eye, Z)); /* p1 + dist * (p2 + dist * p3); */ - emit_op3(p, OPCODE_MAD, ut, 0, negate(swizzle1(eye, Z)), + emit_op3(p, OPCODE_MAD, ut, WRITEMASK_X, swizzle1(ut, Y), swizzle1(state_attenuation, Z), swizzle1(state_attenuation, Y)); - emit_op3(p, OPCODE_MAD, ut, 0, negate(swizzle1(eye, Z)), + emit_op3(p, OPCODE_MAD, ut, WRITEMASK_X, swizzle1(ut, Y), ut, swizzle1(state_attenuation, X)); /* 1 / sqrt(factor) */ - emit_op1(p, OPCODE_RSQ, ut, 0, ut ); + emit_op1(p, OPCODE_RSQ, ut, WRITEMASK_X, ut ); #if 1 /* out = pointSize / sqrt(factor) */ @@ -1340,8 +1349,8 @@ static void build_pointsize( struct tnl_program *p ) #else /* not sure, might make sense to do clamping here, but it's not done in t_vb_points neither */ - emit_op2(p, OPCODE_MUL, ut, 0, ut, state_size); - emit_op2(p, OPCODE_MAX, ut, 0, ut, swizzle1(state_size, Y)); + emit_op2(p, OPCODE_MUL, ut, WRITEMASK_X, ut, state_size); + emit_op2(p, OPCODE_MAX, ut, WRITEMASK_X, ut, swizzle1(state_size, Y)); emit_op2(p, OPCODE_MIN, out, WRITEMASK_X, ut, swizzle1(state_size, Z)); #endif |