How can I draw a line with a mouse (like on Paint)

Development Programming & Scripting
1

I guess it is a very, very tricky question. How can one draw (like we do on Paint) any line (2d or maybe 3d line) in a 3d world with a mouse using bluprints? Can this line have a collision event? Can this line have characteristics like the length of the line, the positions of ends of the line?

2

Look into splines you should be able to do what you want with them.

3

Landscape Splines are the tool which works in Unreal Engine Editor. Too bad no one can use them in the “game mode”

4

There is a spline component which you can spawn and set the spline points via BP dynamically during runtime.