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Today, I'm going to show you how to use snapshots to achieve the sorts of tricks you'd want to do in traditional CPU-based graphics. One of the old school tricks is to be able to touch pixels on the frame buffer directly, or modify the pixels of an image directly. In a GPU world, you cannot do that b/c passing memory between the CPU and GPU is extremely expensive. Snapshots to the rescue! ...

Marek Zilavy is a creative consultant for Little Galaxy, a game developed by Bitmap Galaxy. Marek was responsible for the copywriting, viral marketing, and public relations for Little Galaxy. Currently, Mark also works as a game designer for browser, Facebook and mobile titles. In August 2013, Little Galaxy was recognized as a Corona App of the Week winner. In his guest piece, Marek shares the lessons he learned while marketing Little Galaxy, and his plans to build an audience in the game's next update....