![]() ![]() Pixel sorting could be described as a glitchy effect which selectively orders the pixels of an image in a direction, where the pixels are ordered by luminance, grayscale, hue… Sorting is a well known subject in computer science, but existing algorithms are mostly designed for running on the CPU, because they require the manipulation of array of datas and the possibility to compare any value of the array to any other value of the same array, in any particulary order and so successively. 1) The constraints due to the usage of the GPUįirst, it is important to understand the limitations of the GPU in the context of pixel sorting. In this article I will walk you through the technique I developed to handle such a problem. My concern was to find an algorithm that could handle 4 possible directions, have different directions in different areas, and run on the graphic card. ![]() In my recent projects I have been experimenting a lot with pixel sorting.
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