seenry/osvgen

Why Does This Exist

Let's say you have a taiko map, and you want to have a gradual SV change over the course of however many beats.

You could either create however many timing points and set the SV multipliers by hand... or instead you can use osvgen (http://seenry.github.io/osvgen)!

Tutorial/Example

Below I have a map where I want to create an SV gradient between two timing points:

We'll want to open up the .osu file for the beatmap to get timing point information:

We can copy these lines into the first two boxes of osvgen.

By default, osvgen will take us from 1.00x to 2.00x speed. You can change these if you want, but for this example, the default will do.

For my beatmap, there are (28 + 1/4) measures from timing point 1 to timing point 2. Since I'm using 1/4 snapping there are (28 + 1/4) * 4 = 113 beats meaning I will want to insert 113 - 2 = 111 timing points (-2 because we already have our first and last timing points).

The offset gets applied to every timing point (I made it -3 so that even if there are small rounding errors, the timing point will come before the note). An exception is when the first timing point is uninherited in which case no offset is applied to the first timing point.

We can copy the output and replace the two timing points in the .osu file

After saving, if we reload our map, we can see our timing points have been added~

Final Notes

Hopefully this is useful to some people. If you run into any issues, feel free to create a github issue for it and I'll help/fix things if I can lol.

Happy mapping!