How to implement physics sub-stepping?

[dthecoolest]

@ct0l

use this article,

As @mc3334 said altering Roblox’s timestep is not possible with the tools we are given.

@mc3334

Roblox engine task scheduler runs 60/s, and the physics engine is limited to that as well

Physics engine can actually change between 60hz 120 hz and 240 hz with the new adaptive timestepping, default is 240 hz.

@Hajimalago

• We will support 60hz, 120hz and 240hz stepping frequency of the bodies within our engine.

However physics sub stepping is still possible but painful as you basically have to do it manually similar to the video below by predicting the value of forces half the time step and averaging the force. I’ve done it for my character controller similar to suspension which somewhat works.

PhysicsCharacterController | Mover Constraints based character controller

Hey there thanks for the compliments. I will also CC @JoyfulFlowerMary and @coolerthanbatman123 as they were discussing this issues as well. Here is a video of the issue. Your suspicion is right. Just found out about this fps plugin controlling tool which is very useful. From the video I can conclude that it is caused by the dampening not being sufficient while the spring force is very high which is done to mimic humanoids. self._vectorSpringDragForce.Force = Vector3.new(0,-…

It also gets more complicated to predict and calculate these forces if there are other factors such as roblox rotational dampening (this primarily stumpted me from applying it to a raycast 4 wheel suspension vehicle)

Eliminating rotational air resistance

I have a double pendulum made up of 3 parts and 2 hinge constraints that is losing energy. [Double Pendulum] A thread I made last year suggests that Roblox only has air resistance for rotating bodies. Does anybody know how I can eliminate that? Place file: Double pendulum.rbxl (21.1 KB)