ps.1.1 tex t0 ; basetexture tex t1 ; lightmap mov r0.a, 1-t1.a ;mov r0.rgb, t0 ; * 2 * (overbrightFactor/2) ;mov_x2 r0.rgb, t0 ; * 2 * (overbrightFactor/2) mul r0.rgb, t0, t1; mul_x2 r0.rgb, c0, r0 ; * 2 * (overbrightFactor/2)