The title won’t make sense if I don’t explain as I barely understand the basics. I have recently learned about the rolling shutter effect from this video:
I have seen several posts here on reddit illustrating what happens when the camera shutter is the same as for example the blades of a helicopter. I get that the blades appear to not move but why I don’t get is why the blades aren’t frozen and also bent as seen in the rolling shutter effect.
Example of helicopter blades for example:
https://youtu.be/yr3ngmRuGUc
In: Technology
Former game developer here,
This totally happens. When I was in game development, 32fps was the ideal render speed, now days it’s 60fps.
So imagine we have a rotating object in the game. Every 1/60 of a second the object will have rotated some number of degrees and we render that single frame. You can imagine the object may rotate just less than 360 degrees every frame. What would that look like? A point of reference is behind where it was previously, when it should be ahead! You’d see it in like a rotating wheel of a car, for example.
If you have a robust render engine, it would actually catch this sort of artifact and mitigate it with heuristics. Ideally you would limit rotation so that the object always rotates enough to look like it’s advanced, but not so much that it looks like it rotated backward.
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