[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [54464] trunk/blender/source/blender/ blenkernel/intern/smoke.c: Fix: smoke simulator flow sometimes produced NaN values, causing fire to disappear from the simulation.

[Miika Hamalainen]

Revision: 54464
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=54464
Author:   miikah
Date:     2013-02-11 13:28:18 +0000 (Mon, 11 Feb 2013)
Log Message:
-----------
Fix: smoke simulator flow sometimes produced NaN values, causing fire to disappear from the simulation.

Modified Paths:
--------------
    trunk/blender/source/blender/blenkernel/intern/smoke.c

Modified: trunk/blender/source/blender/blenkernel/intern/smoke.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/smoke.c	2013-02-11 13:24:35 UTC (rev 54463)
+++ trunk/blender/source/blender/blenkernel/intern/smoke.c	2013-02-11 13:28:18 UTC (rev 54464)
@@ -1583,7 +1583,7 @@
 	}
 
 	/* set fire reaction coordinate */
-	if (fuel && fuel[index]) {
+	if (fuel && fuel[index] > FLT_EPSILON) {
 		/* instead of using 1.0 for all new fuel add slight falloff
 		 * to reduce flow blockiness */
 		float value = 1.0f - powf(1.0f - emission_value, 2.0f);