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godotengine / godot

Godot Engine – Multi-platform 2D and 3D game engine
https://godotengine.org
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3D-Vehicle with convex collisions is unstable #64842

Open abgenullt opened 2 years ago

abgenullt commented 2 years ago

Godot version

4.0 alpha 14

System information

Windows 10, RX560

Issue description

Hi,

If you create a vehicle and use convex collision shapes, it will become unstable.

I've attached a sample that contains a blue and a red car. The blue car contains convex shapes. If you e.g drive and hold the brake, it floats on the ground. The red car uses a simple box shape and is stable.

Regards

abgenullt

Steps to reproduce

Build a vehicle and use convex collision shapes. Maybe the stability depends on the amount of shapes..

Minimal reproduction project

car_sample.zip

RanDev199 commented 1 year ago

I have this same problem

Calinou commented 1 year ago

Can you test this with https://github.com/godot-jolt/godot-jolt?

abgenullt commented 1 year ago

The result with jolt is better but again, not as perfect as with simple box shapes..