From 857f39a3d76c7672bb49d95988352bb7caff41a4 Mon Sep 17 00:00:00 2001 From: Antonio Vazquez Date: Wed, 19 May 2021 17:56:12 +0200 Subject: GPencil: Apply NanoSVG fix This fix is ported from official NanoSVG git --- source/blender/io/gpencil/nanosvg/nanosvg.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'source/blender/io/gpencil') diff --git a/source/blender/io/gpencil/nanosvg/nanosvg.h b/source/blender/io/gpencil/nanosvg/nanosvg.h index 886b6402267..94dad37861a 100644 --- a/source/blender/io/gpencil/nanosvg/nanosvg.h +++ b/source/blender/io/gpencil/nanosvg/nanosvg.h @@ -2362,7 +2362,12 @@ static void nsvg__pathArcTo(NSVGparser *p, float *cpx, float *cpy, float *args, // The loop assumes an iteration per end point (including start and end), this +1. ndivs = (int)(fabsf(da) / (NSVG_PI * 0.5f) + 1.0f); hda = (da / (float)ndivs) / 2.0f; - kappa = fabsf(4.0f / 3.0f * (1.0f - cosf(hda)) / sinf(hda)); + // Fix for ticket #179: division by 0: avoid cotangens around 0 (infinite) + if ((hda < 1e-3f) && (hda > -1e-3f)) + hda *= 0.5f; + else + hda = (1.0f - cosf(hda)) / sinf(hda); + kappa = fabsf(4.0f / 3.0f * hda); if (da < 0.0f) kappa = -kappa; -- cgit v1.2.3