Reset child mesh rotation

JFerret · January 23, 2020, 3:56pm

I have a sphere physics impostor and a regular cube mesh as a child.
The sphere rotates on the z axis.

How do i reset the child mesh z rotation to zero?

RaananW · January 23, 2020, 4:00pm

Wanna share a playground so we can help with code?

Will help us a lot to understand exactly what you are trying to achieve.

JFerret · January 23, 2020, 4:33pm

I want to reset the cube z rotation to zero in the render loop.
The cube should not rotate, only the sphere.

Evgeni_Popov · January 23, 2020, 6:39pm

You can try to apply the sphere inverse transformation to the cube:

scene.onBeforeRenderObservable.add(() => {
    cube.rotationQuaternion = BABYLON.Quaternion.Inverse(sphere.rotationQuaternion);
});

[EDIT]Added a texture to the sphere, else we don’t see it is rotating[/EDIT]

JFerret · January 23, 2020, 6:40pm

Thank you!

It works as i wanted