xps.1.1

; c0 - bumplight color
; c1 - specular shininess
; c2 - material color and alpha 
tex t0
tex t1
tex t2

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

add r1, t1, t2 
;mov r1, t2

;mul r0, t0, r1					; diffuse texture times lighting
mul r1.a, t1.a, c0.a

xfc 1-fog.a, fog, prod, zero, t0, t1, 1-r1.a	; no extra final combiner