diff options
Diffstat (limited to 'materialsystem/stdshaders/shadow_ps14.psh')
| -rw-r--r-- | materialsystem/stdshaders/shadow_ps14.psh | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/materialsystem/stdshaders/shadow_ps14.psh b/materialsystem/stdshaders/shadow_ps14.psh new file mode 100644 index 0000000..a71df83 --- /dev/null +++ b/materialsystem/stdshaders/shadow_ps14.psh @@ -0,0 +1,28 @@ +ps.1.4 + +def c0, 1.0f, 1.0f, 1.0f, 1.0f +def c2, 0.2f, 0.2f, 0.2f, 0.2f + +texld r0, t0 +texld r1, t1 +texld r2, t2 +texld r3, t3 +texld r4, t4 + +// The mul has to happen here first because we overflow otherwise +mul r0.r, r0.a, c2.a +mad r0.r, r1.a, c2.a, r0.r +mad r0.r, r2.a, c2.a, r0.r +mad r0.r, r3.a, c2.a, r0.r +mad r0.r, r4.a, c2.a, r0.r + +; To accomplish shadow fading, subtract vertex alpha from texture alpha +; color channel isn't used... +sub_sat r0.a, r0.r, v0.a + +; Blend between white and the constant color... +lrp r0.rgba, 1-r0.a, c0, c1 + + + + |