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Flip texture coords

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This commit is contained in:
Miloslav Číž 2018-09-06 08:55:03 +02:00
parent 7b914e0d5a
commit 184cfb633c
1 changed files with 4 additions and 4 deletions
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8
raycastlib.h
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@ -745,8 +745,8 @@ void _columnFunction(HitResult *hits, uint16_t hitCount, uint16_t x, Ray ray)
p.hit = hit;
if (_computeTextureCoords)
p.textureCoordY = ((i - z1ScreenNoClamp) * UNITS_PER_SQUARE) /
wallScreenHeightNoClamp;
p.textureCoordY = UNITS_PER_SQUARE - ((i - z1ScreenNoClamp) *
UNITS_PER_SQUARE) / wallScreenHeightNoClamp;
_pixelFunction(p);
}
@ -766,8 +766,8 @@ void _columnFunction(HitResult *hits, uint16_t hitCount, uint16_t x, Ray ray)
p.hit = hit;
if (_computeTextureCoords)
p.textureCoordY = ((i - z1ScreenCeilNoClamp) * UNITS_PER_SQUARE) /
wallScreenHeightCeilNoClamp;
p.textureCoordY = UNITS_PER_SQUARE - ((i - z1ScreenCeilNoClamp) *
UNITS_PER_SQUARE) / wallScreenHeightCeilNoClamp;
_pixelFunction(p);
}