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Ryan Oldenburg 2021-01-29 14:10:36 -06:00
parent 74fcf2a9f2
commit c65acc6cd7
1 changed files with 2 additions and 2 deletions
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src/pixie/common.nim
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@ -39,14 +39,14 @@ func lerp*(a, b: Color, v: float32): Color {.inline.} =
result.a = lerp(a.a, b.a, v)
proc toPremultipliedAlpha*(c: Color): Color {.inline.} =
## Converts a color to premultiplied alpha from straight.
## Converts a color to premultiplied alpha from straight alpha.
result.r = c.r * c.a
result.g = c.g * c.a
result.b = c.b * c.a
result.a = c.a
proc toStraightAlpha*(c: Color): Color {.inline.} =
## Converts a color to from premultiplied alpha to straight.
## Converts a color from premultiplied alpha to straight alpha.
if c.a != 0 and c.a != 1:
result = c
else: