On today’s Corona Geek Hangout, Steven Johnson from Xibalba Studios introduced us to shaders, what they are, and when we might use them. We even looked at several working shader playground examples to see the code in action.READ MORE
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!READ MORE