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This question already has an answer here:

I am trying to categorize many similar threads here.

For example, I find this GIF animation freaking cool in this answer here. How can I do this kind of animations? How can I make sure it does not consume too much CPU with less CPU-intensive computers? How can I do professional screencast?

marked as duplicate by Braiam, Mitch Mar 11 '14 at 13:35

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.