From 6fd68b8d76c79b9656aeda4e0ecf7502fc246db2 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Tue, 23 Aug 2011 12:09:20 +0000
Subject: [PATCH] fix [#28336] Particles: setting to zero the count of all
 elements of a group crashes Blender

---
 source/blender/blenkernel/intern/anim.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/blender/blenkernel/intern/anim.c b/source/blender/blenkernel/intern/anim.c
index ebe7325d96a..fcb8da48962 100644
--- a/source/blender/blenkernel/intern/anim.c
+++ b/source/blender/blenkernel/intern/anim.c
@@ -1351,6 +1351,10 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p
 				continue;
 
 			if(part->ren_as==PART_DRAW_GR) {
+				/* prevent divide by zero below [#28336] */
+				if(totgroup == 0)
+					continue;
+
 				/* for groups, pick the object based on settings */
 				if(part->draw&PART_DRAW_RAND_GR)
 					b= BLI_rand() % totgroup;