Smoothens the spline by moving it's node points.
Note that the spline should have plenty of node points to perform a relax. The most common use case for this generator is to smooth the Pathfinding genenerator output.
- Blur: the amount of smoothness applied to line in each iteration.
Iterations: the number of blur iterations. Increasing this number (and lowering the Blur amount at the same time) will give more clean and predictable result, but will increase the generate time.
Relax generator is relatively fast and there's no need to worry about the generate time unless the line is too complicated. But using extremely high values of iterations could be an overkill anyways, and won't differ from less iterated result. Increase this value if you get an unapproprite smoothing in particular cases.