Index: OpenSceneGraph/trunk/include/osgAnimation/Keyframe
===================================================================
--- OpenSceneGraph/trunk/include/osgAnimation/Keyframe (revision 9877)
+++ OpenSceneGraph/trunk/include/osgAnimation/Keyframe (revision 11009)
@@ -24,4 +24,5 @@
 #include <osg/Vec3>
 #include <osg/Vec2>
+#include <osg/Matrixf>
 
 namespace osgAnimation 
@@ -115,4 +116,7 @@
     typedef TemplateKeyframeContainer<osg::Quat> QuatKeyframeContainer;
 
+    typedef TemplateKeyframe<osg::Matrixf> MatrixKeyframe;
+    typedef TemplateKeyframeContainer<osg::Matrixf> MatrixKeyframeContainer;
+
     typedef TemplateKeyframe<Vec3Packed> Vec3PackedKeyframe;
     typedef TemplateKeyframeContainer<Vec3Packed> Vec3PackedKeyframeContainer;