diff --git a/panda/src/pgraph/shaderAttrib.cxx b/panda/src/pgraph/shaderAttrib.cxx
index af0c3f6ac7..4e2a552246 100755
--- a/panda/src/pgraph/shaderAttrib.cxx
+++ b/panda/src/pgraph/shaderAttrib.cxx
@@ -281,6 +281,18 @@ clear_shader_input(const string &id) const {
   return clear_shader_input(InternalName::make(id));
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: ShaderAttrib::clear_all_shader_inputs
+//       Access: Published
+//  Description: Clears all the shader inputs on the attrib.
+////////////////////////////////////////////////////////////////////
+CPT(RenderAttrib) ShaderAttrib::
+clear_all_shader_inputs() const {
+  ShaderAttrib *result = new ShaderAttrib(*this);
+  result->_inputs.clear();
+  return return_new(result);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: ShaderAttrib::get_shader_input
 //       Access: Published
diff --git a/panda/src/pgraph/shaderAttrib.h b/panda/src/pgraph/shaderAttrib.h
index 658a7c8faa..3c83b73617 100755
--- a/panda/src/pgraph/shaderAttrib.h
+++ b/panda/src/pgraph/shaderAttrib.h
@@ -67,6 +67,8 @@ PUBLISHED:
 
   CPT(RenderAttrib) clear_shader_input(InternalName *id) const;
   CPT(RenderAttrib) clear_shader_input(const string &id) const;
+  
+  CPT(RenderAttrib) clear_all_shader_inputs() const;
 
   INLINE bool        get_flag(int flag) const;