how do i draw a volumetric trail on a fast moving object object | godot 4.x

[junior fog]

Have you checked out this page?
https://docs.godotengine.org/en/stable/tutorials/3d/procedural_geometry/index.html

Basically you'll take the position of the node that has the trail and generate new vertices from there and add them to a mesh.

For something simpler, you could try to make a 2D trail and then use billboarding to always keep it facing the camera, although I'm not sure how good that would look

[teal chasm]

i did, something i gave a try for a week and failed massivly

i have also tried using particle trails

i have searched the githubs, i did not find any that are 3d that work (3d as 3d object stretching/curving to make a trail)

i also tried putting an low poly cilinder and doing scale and rotation, it look too unratural, and when FPS was different, it was getting longer or shorter depending on the fps limit

[junior fog]

Were you updating its length in _physics_process? That should be framerate-independent

[teal chasm]

it must me in _physics_process

it is bullet balistics anyway