I wanna write a code for a MCU, the MCU will output an image to a TFT screen, and here is the tricky part: I wanna make the final display to mimic old CRT， which means it will shrink, skew, and out of sync randomly, and the image will be constantly shaking. I hope the FPS would be 60, but that's not the important part, the important part is how to write those functions, for example, regarding the "out of sync" effect, like the image constantly loops from top to bottom (you know what I'm talking about, sometimes you hit the old TV in the back and it stops rolling the image) I can just make the pointer to point to a random line of image (the display-scan mode will be left to right, top to bottom), then output it via the 16bit IO as the first line of image. Now I believe you have the idea of what I'm getting at, but I really do not have much clue on what to do for the rest of the functions, for example, the shrinking effect, I want the image to be horizontally shrinked,looks slimmer — how to implement that? Certain members of array will be "lost", that's for sure. So can anyone please give me your thoughts or some link on this matter? Thanks a lot.