tf2/tf2_src/materialsystem/stdshaders/VertexLitGeneric_BlendTint.psh

; DYNAMIC: "WRITEONETODESTALPHA" "0..1"
ps.1.1

; Get the color from the texture
tex t0

mul r0, c3, t0
lrp r0.rgb, c1, c3, r0
lrp r0.rgb, t0.a, r0, t0
mul r0.rgb, v0, r0		; Apply lighting
mul_x2 r0.rgb, c0, r0   ; * 2 * (overbrightFactor/2)

#if WRITEONETODESTALPHA
+mov r0.a, c4			; make alpha 255
#else
+mov r0.a, c3
#endif