Fixed bug in media photons.

POV-Ray · Feb 28, 2016 · 5b5e312 · 5b5e312
1 parent 6211eee
commit 5b5e312
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Showing 3 changed files with 6 additions and 3 deletions.
diff --git a/source/base/version.h b/source/base/version.h
@@ -45,7 +45,7 @@
 #define OFFICIAL_VERSION_STRING "3.7.1"
 #define OFFICIAL_VERSION_NUMBER 371
 
-#define POV_RAY_PRERELEASE "alpha.8498421"
+#define POV_RAY_PRERELEASE "alpha.8499454"
 
 #if (POV_RAY_IS_AUTOBUILD == 1) && ((POV_RAY_IS_OFFICIAL == 1) || (POV_RAY_IS_SEMI_OFFICIAL == 1))
 #ifdef POV_RAY_PRERELEASE

diff --git a/source/core/lighting/photons.cpp b/source/core/lighting/photons.cpp
@@ -1169,7 +1169,10 @@ void PhotonMediaFunction::DepositMediaPhotons(MathColour& colour, MediaVector& m
     {
         // Add optical depth of current interval.
 
-        Od += (*i).od / (DBL)(*i).samples;
+        if ((*i).samples > 0)
+            Od += (*i).od / (DBL)(*i).samples;
+        else
+            POV_ASSERT((*i).od.IsZero());
     }
 
     // Add contribution estimated for the participating media.

diff --git a/unix/VERSION b/unix/VERSION
@@ -1 +1 @@
-3.7.1-alpha.8498421
+3.7.1-alpha.8499454