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This script was created because while I was creating a LOD models , I found that eliminating polygons which was responsible for smooth hard edged look on the model left my low polygons edges looking too hard.
The idea is to bend the vertex normals around the hard edges closer or further apart to simulate the softer or harder hard edged look than what Maya gives you by default.
How to run this scipt :
Copy the script to your usual script folder. This could be your default Maya script folder under My documents
Source the file if necessary by typing : source Cas_normal_controland then pressing crtl+enter in the script editor
Run script : NC_normal_controland then pressing crtl+enter in the script editor
Combine both source and command into one short cut button on your shelf for easy access next time