ps_1_1

def c0, -0.5, -0.5, -0.5, -0.5

tex t0						// Base Map
tex t1						// Gloss Map
tex t2						// Light Map
tex t3						// Reflection Map

add r1.rgb, t2, c0
+mov r0.a, t1.b				// Note: use the blue channel - texture has no alpha, so it would be opaque
lrp r0.rgb, r0.a, t3, t0
+mov r0.a, t0.a
add r0.rgb, r0, r1