ps.1.1

;------------------------------------------------------------------------------
; Draw a texture . . woo hoo!
; t0 - texture
;
; The texture coordinates need to be defined as follows:
; tc0 - texcoords
;------------------------------------------------------------------------------

tex t0	; base color
texcoord t1

mul r0.rgb, t0_bx2.rgb, c0.rgb +	; Add the refract amount (c0) into the dudv
mov r0.a, t1.a

add_d2 r0.rgb, r0.rgb, c1.rgb		; Rescale back to 0-1
mov_d2 r0.rgb, r0_sat.rgb			; Scale to 0-0.5

mul r0.rgb, r0.rgb, c2				; Filter out red channel
mad r0.rgb, t1.rgb, c3, r0.rgb		; Red channel contains refracttint monochrome