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| author | Savely Skresanov <savask@yandex.ru> | 2012-05-28 14:18:29 (GMT) |
|---|---|---|
| committer | Savely Skresanov <savask@yandex.ru> | 2012-05-28 14:20:21 (GMT) |
| commit | 274a7fe58262c3053d2027f353b3d8290c451cb2 (patch) | |
| tree | e13ca3357c6af579adbd56a8bf95d5dae85ac126 /src | |
| parent | b6d813a54d5cf6548d55384f81946f877cc20e1e (diff) | |
| download | powder-274a7fe58262c3053d2027f353b3d8290c451cb2.zip powder-274a7fe58262c3053d2027f353b3d8290c451cb2.tar.gz | |
No rounding errors with triangle brush, so no need for epsilon (I hope).
Diffstat (limited to 'src')
| -rw-r--r-- | src/powder.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/powder.c b/src/powder.c index 3861248..83a180a 100644 --- a/src/powder.c +++ b/src/powder.c @@ -3375,8 +3375,7 @@ int InCurrentBrush(int i, int j, int rx, int ry) return (abs(i) <= rx && abs(j) <= ry); break; case TRI_BRUSH: - // -1e-9 because due to rounding errors, the corner at i=rx is not considered to be inside the brush at some brush sizes - return (j <= ry ) && ( j >= (((-2.0*ry)/rx)*i)-ry-1e-9) && ( j >= (((-2.0*ry)/(-rx))*i)-ry-1e-9) ; + return ((abs((rx+2*i)*ry+rx*j) + abs(2*rx*(j-ry)) + abs((rx-2*i)*ry+rx*j))<=(4*rx*ry)); break; default: return 0; |