MyouProject/pixie
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fix exclusion blend

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This commit is contained in:
Ryan Oldenburg 2021-02-10 13:46:39 -06:00
parent 955a38ae6a
commit 0cf0c95791
1 changed files with 1 additions and 1 deletions
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src/pixie/blends.nim
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@ -57,7 +57,7 @@ proc blendNormal(backdrop, source: ColorRGBA): ColorRGBA =
proc blendExclusion(backdrop, source: ColorRGBA): ColorRGBA =
proc blend(backdrop, source: uint32): uint8 {.inline.} =
let v = (backdrop + source).int32 - ((2 * backdrop * source) div 255).int32
(cast[uint32](v) and uint8.high.uint32).uint8
max(0, v).uint8
result.r = blend(backdrop.r.uint32, source.r.uint32)
result.g = blend(backdrop.g.uint32, source.g.uint32)
result.b = blend(backdrop.b.uint32, source.b.uint32)