refract_ps11.psh

hl2 source code. Do not use it illegal.

; "REFRACTTINTTEXTURE" "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 == 1
tex t2
#endif

#if REFRACTTINTTEXTURE == 1
mul_x2 r0, t1, t2
#else
mov r0, t1
#endif

; refracttint
mul r0, r0, c0