From Sohey Yamamoto, addition of TexEnvFilter support.

VisualStudio/osgPlugins/osg/dot_osg.dsp

@@ -316,6 +316,10 @@ SOURCE=..\..\..\src\osgPlugins\osg\TexEnvCombine.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\src\osgPlugins\osg\TexEnvFilter.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\src\osgPlugins\osg\TexGen.cpp
 # End Source File
 # Begin Source File

src/osgPlugins/osg/GNUmakefile

@@ -56,6 +56,7 @@ CXXFILES =\
 	TessellationHints.cpp\
         TexEnv.cpp\
         TexEnvCombine.cpp\
+        TexEnvFilter.cpp\
         TexGen.cpp\
         TexGenNode.cpp\
         TexMat.cpp\

src/osgPlugins/osg/TexEnvFilter.cpp

@@ -0,0 +1,49 @@
+#include "osg/TexEnvFilter"
+
+#include "osgDB/Registry"
+#include "osgDB/Input"
+#include "osgDB/Output"
+
+using namespace osg;
+using namespace osgDB;
+
+// forward declare functions to use later.
+bool TexEnvFilter_readLocalData(Object& obj, Input& fr);
+bool TexEnvFilter_writeLocalData(const Object& obj, Output& fw);
+
+// register the read and write functions with the osgDB::Registry.
+RegisterDotOsgWrapperProxy g_TexEnvFilterProxy
+(
+    new TexEnvFilter,
+    "TexEnvFilter",
+    "Object StateAttribute TexEnvFilter",
+    &TexEnvFilter_readLocalData,
+    &TexEnvFilter_writeLocalData
+);
+
+
+bool TexEnvFilter_readLocalData(Object& obj, Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    TexEnvFilter& texenvfilter = static_cast<TexEnvFilter&>(obj);
+
+    float lodBias = 0.0f;
+    if (fr[0].matchWord("lodBias") && fr[1].getFloat(lodBias))
+    {
+        fr += 2;
+        texenvfilter.setLodBias(lodBias);
+        iteratorAdvanced = true;
+    }
+
+    return iteratorAdvanced;
+}
+
+bool TexEnvFilter_writeLocalData(const Object& obj, Output& fw)
+{
+    const TexEnvFilter& texenvfilter = static_cast<const TexEnvFilter&>(obj);
+
+    fw.indent() << "lodBias " << texenvfilter.getLodBias() << std::endl;
+    
+    return true;
+}