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ps.1.1
;------------------------------------------------------------------------------
; Draw stuff
;------------------------------------------------------------------------------
tex t0 ; Contains spotlight
tex t1 ; Contains base texture
tex t2 ; Normalize world pos to light
tex t3 ; Sample iris
dp3 r0, t2_bx2, v0_bx2 ; r0 = N dot L
lrp r1.rgb, t3.a, t3, t1 ; r1 = lerp( baseColor, irisSample.xyz, irisSample.a )
mul r0.rgb, r0_sat, r1 ; Saturate ( N dot L )* lerp
mul r0.rgb, r0, v0.a ; *= attenuation
mul_x2 r0.rgb, r0, t0 + ; *= 2 * spotlight
mov r0.a, t1.a
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