worldvertextransition_micros_editmode.psh

hl2 source code. Do not use it illegal.

ps.1.1

tex t0 ; mid1
tex t1 ; mid2
tex t2 ; lightmap (optionally modulated by the macro)
tex t3 ; micros


mov_sat r0.rgb, t3					; r0 = lightmap * macro
mov_sat r0.a, 1-v0

lrp		r1, r0.a, t1, t0			; blend the midlevel textures
mul		r0.rgb, r0, r1				; multiply by lightmap

mov		r1.a, t3.b					; Blend the two micro textures (one in the blue channel and one in the alpha channel)
lrp		r1.rgb, r0.a, r1.a, t3.a	
mul_x2	r0.rgb, r0, r1				; multiply by lightmap

mul_x4	r0.rgb, c0, r0				; * 2 * (overbrightFactor/2)