Backport 4.0 GodotPhysics fixes for 3.6

[elvisish]

Godot version

4.0 beta 14

System information

Windows 10

Issue description

Recent updates to 4.0 such as #71447 and #70660 would be beneficial to projects close to completion in 3.x, but not using Bullet Physics (Gridmaps, for instance, have collision issues in 3.5 when using bullet that doesn't happen with GodotPhysics). I'm reopening this here as I previously incorrectly opened it as a proposal: godotengine/godot-proposals#6158

Steps to reproduce

Most of the bugs are listed here: #45333 (comment)

Minimal reproduction project

N/A

[Calinou]

cc @peastman @Malcolmnixon

Note that it may be better to wait a little until physics work stabilizes in 4.0, so we can backport completed work once rather than having to backport fixes several times.

[elvisish]

cc @peastman @Malcolmnixon

Note that it may be better to wait a little until physics work stabilizes in 4.0, so we can backport completed work once rather than having to backport fixes several times.

I absolutely agree, while I'd love the fixes now, I think it would be best to plan for 3.6 having solid physics that can support games being finished with 3.x.

[elvisish]

cc @peastman @Malcolmnixon

Note that it may be better to wait a little until physics work stabilizes in 4.0, so we can backport completed work once rather than having to backport fixes several times.

Have there been enough improvements in 4.0 and 4.1 to warrant a backport to 3.6 yet? 4.2 is just around the corner and physics seem a lot more solid than they were in 3.5.

[AThousandShips]

4.2 is just around the corner

4.2? 4.1 hasn't even been released, it's not even in feature freeze yet

[elvisish]

4.2 is just around the corner

4.2? 4.1 hasn't even been released, it's not even in feature freeze yet

I honestly don't know why I thought it had been already, I think I was getting confused with 4.1 being around the corner (still interested if it'll be backported now as 4.0 is nearly done with).

[Saul2022]

.

Have there been enough improvements in 4.0 and 4.1 to warrant a backport to 3.6 yet? 4.2 is just around the corner and physics seem a lot more solid than they were in 3.5.

While it true i think it could be better to wait more, as i think that there could be more fixes incoming when w4 hires the physics engineer they plan, so then they can merge the 4.x changes without doing it more often.