To me it looks like a white or light grey lambert shader against a white background plus careful placing of key, fill and back lights. You don't need any plugins or scripts to create that. You just need good understanding on how the different types of lights work in maya and a good eye to judge what is wrong and knowledge what to do to correct it. Reading the docs about maya lights and some articles on about lighting in real world can help you to nail down some techniques but you still need to train your eyes to see
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