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Use average pixel value instead of only the red channel

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Broxzier
2017-02-21 15:11:54 +01:00
committed by Michał Janiszewski
parent 6edea503b2
commit 3095106b0e
1 changed files with 4 additions and 1 deletions
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5
src/openrct2/world/mapgen.c
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@@ -800,7 +800,10 @@ void mapgen_smooth_heightmap(SDL_Surface *surface, sint32 strength)
// This assumes the height map is not tiled, and increases the weight of the edges
const sint32 readX = clamp(x + offsetX, 0, width - 1);
const sint32 readY = clamp(y + offsetY, 0, height - 1);
heightSum += src[readX * numChannels + readY * pitch];
const uint8 red = src[readX * numChannels + readY * pitch];
const uint8 green = src[readX * numChannels + readY * pitch + 1];
const uint8 blue = src[readX * numChannels + readY * pitch + 2];
heightSum += (red + green + blue) / 3;
}
}