3D KinematicBody is not correctly detecting collision with PlaneShape

[CowThing]

Operating system or device - Godot version:
Windows 10 64bit - Godot 2.1 RC1

Issue description (what happened, and what was expected):
The KinematicBody is_colliding() function does not return true when the body is colliding with an object that has a PlaneShape collision shape. It does still get stopped by the object, but doesn't report the collision.

Steps to reproduce:
Create a StaticBody with a PlaneShape collision. Create a KinematicBody with a simple BoxShape collision, and add a script to it to move into the StaticBody. Print is_colliding()

[ghost]

I can confirm this happens on Linux 64bit 2.1 RC1

[pkowal1982]

Still present on 2.1.2. I'm attaching test scenes, the one called test_plane.tscn should print COLLISION on contact like test.tscn.
godot_collision_bug.zip

[bojidar-bg]

For the record, this is a duplicate of the archived #962 (but the other was closed as no one answered on it, so this should stay).

I should have been fixed in c79be97 -

-Added kinematic collision with plane (please test well). #911

But seems like it wasn't...

[LeonardMeagher2]

@bojidar-bg
#962 was fixed with bullet (still an issue with godot's physics)
also you're correct that it wasn't fixed with that commit related to #911

this is present currently in master as of Dec 19th 2017

[ghost]

Can confirm in master 394e6d5

[sketchyfun]

Area's don't appear to detect plane collision shapes either

[newbie2356]

is_on_floor() reports false when using a planeshape collision shape.

[reduz]

@AndreaCatania ?

[AndreaCatania]

The plane shape is not meant to be a floor, but is meant to kind of world margin... For this reason it doesn't work properly.

[henriquelalves]

Can confirm this on current master (0babb)

[madmiraal]

This is fixed in Bullet physics with #35945 and Godot physics with #39361.