source-engine/materialsystem/stdshaders/VertexLitGeneric_BaseAlphaMaskedEnvMapV2.psh

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2020-04-23 00:56:21 +08:00
; DYNAMIC: "WRITEONETODESTALPHA" "0..1"
ps.1.1
tex t0 ; base color
tex t1 ; cube map
tex t2 ; envmap mask
mul r0, t0, c3 ; Base times modulation
mul r1, t1, 1-t2.a ; Envmap * mask (in alpha channel)
mul r0.rgb, v0, r0 ; apply vertex lighting
mul_x2 r0.rgb, c0, r0 ; * 2 * (overbrightFactor/2)
mad r0.rgb, r1, c2, r0 ; + envmap * mask * tint
#if WRITEONETODESTALPHA
+mov r0.a, c4 ; make alpha 255
#endif