Cleanup Check List by Kjetil H Kulander

1. All models must be modelled with the deformation in consideration. Check the Number Of Spans on all NURBS objects.
   
   
2. Run Cleanup from the Polygons menu, and activate Nonmanifold geometry in the optionBox. Clean up if any errors occur.
   
   
3. Check the face and vertex normals. Check for border-edges.
   
   
4. The scale value should be "1" on all transform nodes.
   
   
5. Translate and rotate values should be "0" on all transform nodes.
   
   
6. Delete History!...
   
   
7. Optimize Scene!...
   
   
8. Delete unused nodes which for some reason was not deleted by Optimize scene ( materials / textures / utilities / lights / cameras / shadingGroups ).
   
   
9. Delete script nodes...
   
   
10. Delete expressions. Some plugins/scripts leave expression-nodes in the scene, which is not deleted by Optimize Scene. Run Optimize scene again if you find any expressions.
    
    
11. Some nodes could be locked. You will get an error on this when you run optimize scene. Select the node, and run the MEL command "lockNode -l 0;". You can now delete it and run Optimize Scene.
    
    
12. All scenes has a node named lightLinker1. Some times this node gets an insane amount of unneeded connections, making the scene very heavy. Use input/output-connections in the Hypergraph to check for connections. The easyest way to delete lightlinker connections is to save your file as ascii, open the file in WordPad, delete the lightlinker connections, save the file and open the file in Maya.
    
    
13. Some nodes could be "Non-deletable". Delete these through opening it in WordPad.
    
    
14. The Outliner should be well arranged, and the name of the nodes should be relevant. The objects should be arranged using groups, not layers.