![]() In a way, dithering is a sister to AA, and, similarly, you can use it creatively in order to preserve a low color count and create a cohesive color palette, or otherwise affect an overall look and style. ![]() Therefore, the amount of one color within a larger area of another color affects the overall perceived color and may convey a color gradient or smooth transition between colors by utilizing certain patterns or a sequence of patterns. Similar to the way in which anti-aliasing (or "AA") works fundamentally, dithering uses the color data from multiple pixels of differing colors to convey new color information through the application of certain dithering patterns which imply different perceived values and colors. Dithering is rarely, if ever, necessary in modern contexts, but once you truly understand how it may be used, you can decide whether or not it should be used for each individual piece or project. That is not say that dithering does not have a place in the modern pixel art landscape, or that I don’t use it when appropriate, but pixel art beginners seem to feel like they must use dithering, perhaps as a way of making sure they have a full understanding of all pixel art concepts and techniques. I hardly ever use dithering in my own pixel art because I do not find it necessary for the sort of things I usually create, particularly in my personal work-nor do I often find it aesthetically appealing, as it tends not to be when applied with reckless abandon. The things we find appealing in modern pixel art are different than they once were, but they are still influenced by techniques, including dithering, developed to cope with now obsolete restrictions. Now, any color limitations in our pixel art are self-imposed, and dithering displayed on modern screens does not convey the same effect. Some systems, like the Commodore 64, whose output used stretched or non-square pixels, gave dithering an entirely distinct look. Due to the blurring and scaling inherent in CRT display technology, dithering patterns were less visible than they would be on modern displays. In historical applications of pixel art, dithering was often a necessity, as old platforms were limited in various ways.
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