Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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5 years ago
; STATIC: "REFRACTTINTTEXTURE" "0..1"
; STATIC: "NORMALMAPALPHA" "0..1"
ps.1.1
; t0:
; texture: dudv map
; texcoords: dudvmap texcoords
; t1:
; texture: refraction render target
; texcoords:
tex t0 ; sample dudv map
texbem t1, t0 ; refraction
#if REFRACTTINTTEXTURE
tex t2
#endif
#if NORMALMAPALPHA
tex t3
#endif
; refracttint
#if REFRACTTINTTEXTURE
mul_x2 r0, t1, t2
#else
mov r0, t1
#endif
#if NORMALMAPALPHA
mul r0.rgb, r0, c0 +
mov r0.a, t3.a
#else
mul r0.rgb, r0, c0
#endif