What is cutoff when calculating speed in this equation?

Asked Oct 04 '20 at 16:19

Active Oct 04 '20 at 16:19

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I saw a twitter post mention the following as way to make movement frame-rate independent:

changeRate = 1 - exp(-2.0 * PI * cutoff / fps)
speed -= speed * changeRate

What is cutoff? And is fps a constant or the actual fps?

As someone unfamiliar with game development, I'm probably doing all these wrong, but the equation above is the green ball:

asked Oct 04 '20 at 16:19

cantdoart

When referring to "a twitter post" it's always useful to add a link to the said twitter post. – Vaillancourt Oct 04 '20 at 17:32
Also, you have access to the source code of that moving ball, why don't you just look for the answers? – Vaillancourt Oct 04 '20 at 17:37
Hey @Vaillancourt, here's the link to the tweet. I wasn't sure if I was allowed to link to sites like that. – cantdoart Oct 04 '20 at 20:48
The codesandbox link is code I wrote. I don't think it's right, but there for reference. – cantdoart Oct 04 '20 at 20:49

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