[Bf-blender-cvs] [3ed1a99dd26] sculpt-dev: Fix elastic deform surface falloff crashing or breaking geometry

[Pablo Dobarro]

Commit: 3ed1a99dd26f68e493c6a553e1a020b86f1a2adf
Author: Pablo Dobarro
Date:   Fri Feb 5 20:44:45 2021 +0100
Branches: sculpt-dev
https://developer.blender.org/rB3ed1a99dd26f68e493c6a553e1a020b86f1a2adf

Fix elastic deform surface falloff crashing or breaking geometry

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

M	source/blender/editors/sculpt_paint/sculpt.c

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

diff --git a/source/blender/editors/sculpt_paint/sculpt.c b/source/blender/editors/sculpt_paint/sculpt.c
index 2d4b53bcabd..8b334dd168a 100644
--- a/source/blender/editors/sculpt_paint/sculpt.c
+++ b/source/blender/editors/sculpt_paint/sculpt.c
@@ -4505,10 +4505,16 @@ static void do_elastic_deform_brush_task_cb_ex(void *__restrict userdata,
 
     float orig_co[3];
     if (brush->flag2 & BRUSH_USE_SURFACE_FALLOFF) {
+      const float geodesic_dist = ss->cache->geodesic_dists[ss->cache->mirror_symmetry_pass][vd.index];
+
+      if (geodesic_dist == FLT_MAX) {
+          continue;
+      }
+
       float disp[3];
       sub_v3_v3v3(disp, orig_data.co, ss->cache->initial_location);
       normalize_v3(disp);
-      mul_v3_fl(disp, ss->cache->geodesic_dists[ss->cache->mirror_symmetry_pass][vd.index]);
+      mul_v3_fl(disp, geodesic_dist);
       add_v3_v3v3(orig_co, ss->cache->initial_location, disp);
     }
     else {