xps.1.1

; c0 - bumplight color
; c1 - specular shininess
; c2 - material color and alpha 
tex t0
tex t1

dp3 r1, t0_bx2, v0_bx2			; dot product of vertex light vector and normal map
mad t0, r1_sat, c0, v1			; mul by the light color adding the rest of the lights
mov r1, t1
mul r0, t0, r1					; diffuse texture times lighting
mul r1.a, t1.a, c0.a

; test the bumpmap
;mov r0.rgb, t0.rgb

xfc zero_sat, zero_sat, r0_sat, zero_sat, zero_sat, zero_sat, 1-r1.a	; no extra final combiner