How to Generate splines in real time? Like GTA 5 gasoline trail

[Everynone]

So like most other articles I’ve read,
people are having the same issues of
splines not generating in real time,
at best they duplicate the actor over
and over instead of adding additional
points to the first spline spawned.

Real-time splines have always been a thing, it’s actually fairly straightforward:

How can I draw a spline drawn by the player's movements?

It’s probably still in the Relative transform mode while you will want Absolute Location & Rotation for this: [image] This may have more to do with the size of the world; float precision could be a culprit here and is a normal behaviour. You’d need to include more details here - what the worlds is made out of and what distances we’re dealing with. But this is probably unrelated to the spline itself, though. It’s part of the engine: [image] But you should be using your own mesh and your o…

Once you have a spline, add spline mesh components, by default they have no collision but it can be added:

You will need collision for interaction, it does no need to visualised but can be to display a gasoline trail. You will need particles once lit.

You will need collision for
interaction

edit: or perhaps not since the plan is to turn it into a shape