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app: improve formulas of softlight and linear light blending modes

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This commit is contained in:
Øyvind Kolås 2017-01-23 18:40:53 +01:00
parent 4a3fbb8f35
commit 774687dcfe
1 changed files with 2 additions and 2 deletions
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4
app/operations/layer-modes/gimpblendcomposite.h
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@ -802,7 +802,7 @@ blendfun_softlight (const float *dest,
{
gfloat multiply = dest[c] * src[c];
gfloat screen = 1.0f - (1.0f - dest[c]) * (1.0f - src[c]);
gfloat comp = (1.0f - src[c]) * multiply + dest[c] * screen;
gfloat comp = (1.0f - dest[c]) * multiply + dest[c] * screen;
out[c] = comp;
}
@ -1192,7 +1192,7 @@ blendfun_linear_light (const float *dest,
}
else
{
comp = dest[c] + 2 * (src[c] - 1.0);
comp = dest[c] + 2.0 * src[c] - 1.0;
}
out[c] = comp;
}