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 t0 tex t1
; Blend between grey and lightmap color based on total alpha
def c2, 0.5f, 0.5f, 0.5f, 1.0f
mul_x2 r1.rgb, c0, t1 ; Apply overbright to lightmap + mov r1.a, v0 ; vertex alpha lrp r0, r1.a, r1, c2 ; interpolate between grey + color
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