ps.1.1
tex t0 ; basetexture
tex t1 ; basetexture2
tex t2 ; lightmap
; The editor uses vertex alpha as the blend factor
lrp r0, 1-v0.a, t1, t0
mul r0, r0, t2
mul_x2 r0.rgb, c0, r0 ; * 2 * (overbrightFactor/2)