How do screens smoothly scale resolutions that aren’t multiples of each other? E.g. playing 1080p or 720p video on a 900p screen, or reducing my phone’s resolution from 1440p to 1080p?
In: Technology
A lot of math and programming.
Long story short, the system (phone, computer, whatever) has software and sometimes hardware that quickly does the needed calculations to adjust to resolution to the screen. If it does not divide evenly a system of correction is used. Pixels are “averaged together” or combined in some way to make a fitting scaled down version.
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