xps.1.1

; Inputs:
; t0          = surface normal (renormalize and dot with eye)
; t1          = eye direction
; c0          = base blob color
; c1          = ambient color


tex t0
tex t1

dp3 r0, t0_bx2, t1_bx2
mov r1, r0_sat
mul r0, 1-r1, 1-r1
mul r0.rgb, 1-r0, c0.rgb
add r0.rgb, r0.rgb, c1.rgb
mov r0.a, c0.a

;mov r0.rgb, t0.rgb