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C / C++ /C# / [C/ Win32 GDI] How to make a bitmap 'wobble'?

« on: September 29, 2020 »

The wobble effect is one of my all-time favourites. It is simple but always nice and hypnotic to look at. I am using C and plain GDI for my projects and want to learn how to apply this effect to a bitmap. From my basic understanding, each column or row of pixels moves using sine modulation. I've heard that this probably isn't the best way to do it, but I'm admittedly terrible at math. My programming ability is that of a beginner, however I've been hacking around with the GDI and managed to learn a thing or two. Any help is appreciated!