[Bf-blender-cvs] [6eea69a7ad3] master: Fix T70150: Explode modifier crashes with empty vertex group.

Bastien Montagne noreply at git.blender.org
Sun Sep 22 18:55:08 CEST 2019


Commit: 6eea69a7ad3eb92cf7feca2b06704a0b54ff12fe
Author: Bastien Montagne
Date:   Sun Sep 22 18:29:05 2019 +0200
Branches: master
https://developer.blender.org/rB6eea69a7ad3eb92cf7feca2b06704a0b54ff12fe

Fix T70150: Explode modifier crashes with empty vertex group.

There’s be a lot to say about that explode modifier code, for now just
follow other places in code... But the handling of 'invalid'/'unkown'
particle case is... quiet confusing to say the least.

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

M	source/blender/modifiers/intern/MOD_explode.c

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

diff --git a/source/blender/modifiers/intern/MOD_explode.c b/source/blender/modifiers/intern/MOD_explode.c
index ed42a4bf8b1..5ba61ea818b 100644
--- a/source/blender/modifiers/intern/MOD_explode.c
+++ b/source/blender/modifiers/intern/MOD_explode.c
@@ -1069,7 +1069,7 @@ static Mesh *explodeMesh(ExplodeModifierData *emd,
 
     /* override uv channel for particle age */
     if (mtface) {
-      float age = (cfra - pa->time) / pa->lifetime;
+      float age = (facepa[i] != totpart) ? (cfra - pa->time) / pa->lifetime : 0.0f;
       /* Clamp to this range to avoid flipping to the other side of the coordinates. */
       CLAMP(age, 0.001f, 0.999f);



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