pointlight.psh

real-time(实时渲染技术DirectX)Media

ps.1.1

;Needed for the complement
def c0, 1.0, 1.0, 1.0, 1.0

;This is the light texture
tex t0

;This is the same texture, but this shader only uses the
;alpha channel
tex t1

sub r0, c0, t0
sub r0, r0, t1.a
mul r0, r0, v0