diff --git a/include/osg/StateSet b/include/osg/StateSet
index 8310f7172..1fac5e1cc 100644
--- a/include/osg/StateSet
+++ b/include/osg/StateSet
@@ -486,6 +486,8 @@ class OSG_EXPORT StateSet : public Object
 
 };
 
+extern OSG_EXPORT bool isTextureMode(StateAttribute::GLMode mode);
+
 }
 
 #endif
diff --git a/src/osg/StateSet.cpp b/src/osg/StateSet.cpp
index f7bab99e7..2de565a7e 100644
--- a/src/osg/StateSet.cpp
+++ b/src/osg/StateSet.cpp
@@ -73,6 +73,11 @@ static TextureGLModeSet& getTextureGLModeSet()
     return s_textureGLModeSet;
 }
 
+bool osg::isTextureMode(StateAttribute::GLMode mode)
+{
+    return getTextureGLModeSet().isTextureMode(mode);
+}
+
 StateSet::StateSet()
 {
     setDataVariance(osg::StateAttribute::STATIC);