[Bf-blender-cvs] [493158b5aa7] greasepencil-edit-curve: GPencil: Fix bug where curve points woud dissapear

[Falk David]

Commit: 493158b5aa75667541da7ef2ce6e69c5104d11a8
Author: Falk David
Date:   Mon Sep 28 18:52:06 2020 +0200
Branches: greasepencil-edit-curve
https://developer.blender.org/rB493158b5aa75667541da7ef2ce6e69c5104d11a8

GPencil: Fix bug where curve points woud dissapear

When adaptive resolution was active, the calculated resolution for a
segment was not being claped to a minimum of 1, leading to segments
with zero points.

===================================================================

M	source/blender/blenkernel/intern/gpencil_curve.c

===================================================================

diff --git a/source/blender/blenkernel/intern/gpencil_curve.c b/source/blender/blenkernel/intern/gpencil_curve.c
index 76901f91e34..59c251197eb 100644
--- a/source/blender/blenkernel/intern/gpencil_curve.c
+++ b/source/blender/blenkernel/intern/gpencil_curve.c
@@ -960,6 +960,7 @@ static float *gpencil_stroke_points_from_editcurve_adaptive_resolu(
     bGPDcurve_point *cpt_next = &curve_point_array[i + 1];
     float arclen = gpencil_approximate_curve_segment_arclength(cpt, cpt_next);
     int segment_resolu = (int)floorf(arclen * resolution);
+    CLAMP_MIN(segment_resolu, 1);
 
     segment_point_lengths[i] = segment_resolu;
     points_len += segment_resolu;
@@ -970,6 +971,7 @@ static float *gpencil_stroke_points_from_editcurve_adaptive_resolu(
     bGPDcurve_point *cpt_next = &curve_point_array[0];
     float arclen = gpencil_approximate_curve_segment_arclength(cpt, cpt_next);
     int segment_resolu = (int)floorf(arclen * resolution);
+    CLAMP_MIN(segment_resolu, 1);
 
     segment_point_lengths[cpt_last] = segment_resolu;
     points_len += segment_resolu;