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skia
/
skia
/
31ece716bead0e87adc64acd21b222aa4acb09d1
/
.
/
tests
/
sksl
/
blend
/
BlendDifference.glsl
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#version 400
out
vec4 sk_FragColor
;
in
vec4 src
;
in
vec4 dst
;
void
main
()
{
sk_FragColor
=
vec4
((
src
.
xyz
+
dst
.
xyz
)
-
2.0
*
min
(
src
.
xyz
*
dst
.
w
,
dst
.
xyz
*
src
.
w
),
src
.
w
+
(
1.0
-
src
.
w
)
*
dst
.
w
);
}