How do I make a trail like this one.

hello , how do i make my character to have a trail like this ( prntscr.com/e3jie7 ) the trail doesnt fade in the end. and whenever i move the character the trail is infinite and spawns another line.

2 ways. First method is:

Every X seconds| Spawn Trail

But as you can see the trail is very smooth so maybe only spawn trail when the object switches direction.

In this case, you would need to manipulate the Trail itself by setting the origin to 0 and then lengthening as the object travels. When the object shifts direction, spawn another trail and discontinue the lengthening of the previous trail.

Thanks that's very helpful.