adrido/minetest-mapper-cpp
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When using transparency, don't compute new value when pixel is already fully opaque

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This makes the code slightly more efficient, and should not affect the
generated map at all.
This commit is contained in:
Rogier 2015-06-07 21:30:45 +02:00
parent 4e6ee97936
commit 673e8c6723
1 changed files with 2 additions and 0 deletions
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PixelAttributes.cpp
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@ -259,6 +259,8 @@ void PixelAttribute::mixUnder(const PixelAttribute &p)
} }
m_h = p.m_h; m_h = p.m_h;
} }
else if (m_a == 1)
; // Nothing to do: pixel is already fully opaque.
else if ((m_mixMode & AlphaMixCumulative) == AlphaMixCumulative || (m_mixMode == AlphaMixAverage && p.m_a == 1)) { else if ((m_mixMode & AlphaMixCumulative) == AlphaMixCumulative || (m_mixMode == AlphaMixAverage && p.m_a == 1)) {
PixelAttribute pp(p); PixelAttribute pp(p);
#ifdef DEBUG #ifdef DEBUG