Question 186389 in Javascript Question posted in
A very good W3school tutorial can be found here.

Javascript – How to prevent character from rotating when moving perpendicular to a hillside collider

You can see the problem when moving perpendicular to the collider: https://8observer8.github.io/webgl10-js/lighthouse-oimophysics-webgl-js/

enter image description here

I use OimoPhysics but there is no such tag. This is a task common to all physics engines. There is a ball that slides down an inclined surface. It will rotate around an axis pointing upwards in the direction of greatest friction. It can only rotate around the upward axis, rotations around the other axes are frozen.

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  1. Chosen as BEST ANSWER
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    I created the issue on GitHub: https://github.com/saharan/OimoPhysics/issues/65


  2. 0

    It will be a long wait for the OimoPhysics developers to solve this problem. I replaced OimoPhysics with Ammo.js and the problem went away: https://8observer8.github.io/webgl10-js/lighthouse-ammo-webgl-js/

    enter image description here

    Ammo.js works for bigger angle (42 degrees) too:

    enter image description here

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