Add clear_tag_states() to camera

panda/src/pgraph/camera.cxx

@@ -139,6 +139,17 @@ clear_tag_state(const string &tag_state) {
   _tag_states.erase(tag_state);
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: Camera::clear_tag_state
+//       Access: Published
+//  Description: Removes all associations established by previous
+//               calls to set_tag_state().
+////////////////////////////////////////////////////////////////////
+void Camera::
+clear_tag_states() {
+  _tag_states.clear();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: Camera::has_tag_state
 //       Access: Published

panda/src/pgraph/camera.h

@@ -80,6 +80,7 @@ PUBLISHED:
 
   void set_tag_state(const string &tag_state, const RenderState *state);
   void clear_tag_state(const string &tag_state);
+  void clear_tag_states();
   bool has_tag_state(const string &tag_state) const;
   CPT(RenderState) get_tag_state(const string &tag_state) const;