Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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5 years ago
ps.1.1
;------------------------------------------------------------------------------
; Draw a texture . . woo hoo!
; t0 - texture
;
; The texture coordinates need to be defined as follows:
; tc0 - texcoords
; c2 - envmaptint
;------------------------------------------------------------------------------
tex t0 ; base color
tex t1 ; cube map
tex t2 ; envmap mask
mul r0.rgb, t1, t2 ; can't use mad cause can't use 3 texture registers
mul r0.rgb, c2, r0 ; apply the envmaptint
mad r0.rgb, t0, v0, r0
+ mul r0.a, t0, v0