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-rw-r--r--materialsystem/stdshaders/Shadow.psh12
1 files changed, 12 insertions, 0 deletions
diff --git a/materialsystem/stdshaders/Shadow.psh b/materialsystem/stdshaders/Shadow.psh
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+ps.1.1
+
+def c0, 1.0f, 1.0f, 1.0f, 1.0f
+
+tex t0
+
+; To accomplish shadow fading, subtract vertex alpha from texture alpha
+; color channel isn't used...
+sub_sat r0.a, t0.a, v0.a
+
+; Blend between white and the constant color...
+lrp r0.rgba, 1-r0.a, c0, c1