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Practical Maya Programming with Python

You're reading from   Practical Maya Programming with Python Unleash the power of Python in Maya and unlock your creativity

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Product type Paperback
Published in Jul 2014
Publisher
ISBN-13 9781849694728
Length 352 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Robert Galanakis Robert Galanakis
Author Profile Icon Robert Galanakis
Robert Galanakis
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Table of Contents (12) Chapters Close

Preface 1. Introspecting Maya, Python, and PyMEL FREE CHAPTER 2. Writing Composable Code 3. Dealing with Errors 4. Leveraging Context Managers and Decorators in Maya 5. Building Graphical User Interfaces for Maya 6. Automating Maya from the Outside 7. Taming the Maya API 8. Unleashing the Maya API through Python 9. Becoming a Part of the Python Community A. Python Best Practices Index

Improving the performance of PyMEL

I hope at this point, PyMEL's superiority over maya.cmds has been thoroughly demonstrated. If you have any doubt, feel free to rewrite the examples in this chapter to use maya.cmds and see how much cleaner the PyMEL versions are.

Having said that, PyMEL can be slower than maya.cmds. The performance difference can usually be made up by applying one of the following three improvements.

Defining performance

For most scripts, the performance difference is too miniscule to matter. Fast and slow are relative terms. The important metric is fast enough. If your code is fast enough, performance improvements won't really matter. Most of the tools you will write fall under this category. For example, making a pose mirroring tool go 500% faster doesn't matter if it only takes a tenth of a second in the first place.

Refactoring for performance

In most cases where PyMEL code actually needs to be sped up, rewriting small parts can make huge gains. Is your code...

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