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Fix the vivid light formula

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This commit is contained in:
Alexandre Prokoudine
2017-02-04 22:58:35 +03:00
parent 3f91ad7f3c
commit 0159d0b734
1 changed files with 4 additions and 4 deletions
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8
app/operations/layer-modes/gimpoperationlayermode.c
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@ -1726,7 +1726,7 @@ blendfun_copy (const float *dest,
} }
/* added according to: /* added according to:
http://www.deepskycolors.com/archivo/2010/04/21/formulas-for-Photoshop-blending-modes.html */ http://www.simplefilter.de/en/basics/mixmods.html */
static inline void static inline void
blendfun_vivid_light (const float *dest, blendfun_vivid_light (const float *dest,
const float *src, const float *src,
@ -1743,13 +1743,13 @@ blendfun_vivid_light (const float *dest,
{ {
gfloat comp; gfloat comp;
if (src[c] > 0.5f) if (src[c] <= 0.5f)
{ {
comp = (1.0f - (1.0f - dest[c]) / (2.0f * (src[c]))); comp = 1.0f - (1.0f - dest[c]) / (2.0f * (src[c]));
} }
else else
{ {
comp = dest[c] / (1.0f - 2.0f * (src[c] - 0.5)); comp = dest[c] / (2.0f * (1.0f - src[c]));
} }
comp = MIN (comp, 1.0f); comp = MIN (comp, 1.0f);