[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [60911] trunk/blender/source/blender/ freestyle/intern/geometry/Noise.cpp: Fix for occasional crashes due to numerical instability in Freestyle Perlin noise modifiers with a large 'octaves' value.
Tamito Kajiyama
rd6t-kjym at asahi-net.or.jp
Thu Oct 24 13:41:40 CEST 2013
Revision: 60911
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=60911
Author: kjym3
Date: 2013-10-24 11:41:39 +0000 (Thu, 24 Oct 2013)
Log Message:
-----------
Fix for occasional crashes due to numerical instability in Freestyle Perlin noise modifiers with a large 'octaves' value.
Problem report by Light BWK through personal communications, thanks a lot!
Modified Paths:
--------------
trunk/blender/source/blender/freestyle/intern/geometry/Noise.cpp
Modified: trunk/blender/source/blender/freestyle/intern/geometry/Noise.cpp
===================================================================
--- trunk/blender/source/blender/freestyle/intern/geometry/Noise.cpp 2013-10-24 01:44:38 UTC (rev 60910)
+++ trunk/blender/source/blender/freestyle/intern/geometry/Noise.cpp 2013-10-24 11:41:39 UTC (rev 60911)
@@ -62,10 +62,10 @@
#define SETUP(i, b0, b1, r0, r1) \
{ \
(t) = (i) + (N); \
- (b0) = ((int)(t)) & BM; \
+ (r0) = modf((t), &(u)); \
+ (r1) = (r0) - 1.0; \
+ (b0) = ((int)(u)) & BM; \
(b1) = ((b0) + 1) & BM; \
- (r0) = (t) - (int)(t); \
- (r1) = (r0) - 1.0; \
} (void)0
static void normalize2(float v[2])
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