Fix T41085: Blender crashes when using "spline" or "segments" for bevel curve factor.

Root of the issue goes to the fact that bevel list calculation might drop some points
if they're at the same position. This made spline length calculation goes wrong.

Now the length of the bevel segments is stored in the bevel list, so values are
always reliable.

Initial patch by Lukas Treyer with some tweaks from me.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index c6aaeb8cc64..01770538390 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -111,6 +111,7 @@ struct ListBase *BKE_curve_editNurbs_get(struct Curve *cu);
 float *BKE_curve_make_orco(struct Scene *scene, struct Object *ob, int *r_numVerts);
 float *BKE_curve_surf_make_orco(struct Object *ob);
 
+void BKE_curve_bevelList_free(struct ListBase *bev);
 void BKE_curve_bevelList_make(struct Object *ob, struct ListBase *nurbs, bool for_render);
 void BKE_curve_bevel_make(struct Scene *scene, struct Object *ob,  struct ListBase *disp,
                           const bool for_render, const bool use_render_resolution);