Velocity questions

[Stazis555]

Hi there, I have couple of questions related to the velocity, sorry if it is repeated, couldn't find any duplicates. Using bevy_rapier_2d.

1. What is the unit when you setup the velocity component (linvel)? Kinda confusing setting it big values since as far as i get it should be in meters, not in pixels. Although I'm setting it to velocity.linvel = 200.0 * direction; where direction is a normalized vector. pixels_per_meter(100.0) and object is Collider::cuboid(25.0, 25.0)
2. Should be velocity multiplied by delta time or is it executed in fixed timestamp and added "gradually" according to the fixed delta?

[sebcrozet]

Hi!

1. With bevy_rapier2d, all the user-facing lengths are expressed in pixels. So if you set pixels_per_meter(100.0), a velocity of 200.0 means 2 meters per second.
2. You don’t have to multiply the velocity by the delta-time. The integration will deal with it for you.