From Pierre Haritchabalet, "In IO_FluidProgram.cpp, FluidProgram_readLocalData() function is wrong. When density parameter is read, the function "setFluidViscosity()" is called instead of "setFluidDensity()".

This patch fixes osg plug'in FluidProgram_readLocalData. "

src/osgPlugins/osgParticle/IO_FluidProgram.cpp

@@ -49,7 +49,7 @@ bool FluidProgram_readLocalData(osg::Object &obj, osgDB::Input &fr)
     
     if (fr[0].matchWord("density")) {
         if (fr[1].getFloat(f)) {
-            myobj.setFluidViscosity(f);
+            myobj.setFluidDensity(f);
             fr += 2;
             itAdvanced = true;
         }