Team Fortress 2 Source Code as on 22/4/2020
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ps.1.1
;------------------------------------------------------------------------------; Draw a texture . . woo hoo!; t0 - texture;; The texture coordinates need to be defined as follows:; tc0 - texcoords;------------------------------------------------------------------------------
tex t0tex t1
; Blend between grey and lightmap color based on total alpha
def c0 0.5f 0.5f 0.5f 1.0f
mul_x2 r1.rgb, c0, t1 ; Apply overbright to lightmap+ mul r1.a, t0, v0 ; base times vertex alpha; GR - workaround for const/lerp issuesmul r0.rgb, c1, t0 ; Self illum * tint+mul_sat r0.a, c1, t0lrp r1.rgb, t0.a, r1, r0 ; Blend between self-illum + lightmaplrp r0, r1.a, r1, c0 ; interpolate between grey + color
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