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; c1 - self-illum tint; c2 - envmap tint;------------------------------------------------------------------------------
def c1, 0.5f, 0.5f, 0.5f, 0.5f
tex t0tex t1tex t2tex t3
mul r0, t0, v0 ; base times vertex color (with alpha)mul r0, r0, t3 ; detail texture (with alpha)lrp r1.rgb, c3, c1, t1 ; Blend between unlit + lightmap lightingmul r0.rgb, r1, r0 ; fold in lightmap (color only)mul_x2 r0.rgb, c0, r0 ; * 2 * (overbrightFactor/2)mul r1, t2, t0 ; envmap * envmapmask (base == envmapmask)mad r0.rgb, r1, c2, r0 ; + envmap * envmapmask * envmaptint (color only)
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