Im trying to figure out what I need to do here, when I rotate the mesh the movement is going out of whack, very noticable when you bank to 90 degrees and try to pitch and change heading, I know I need to translate this somehow to relative rotation but Im not sure how to go about it, perhaps yall can help.
Iām not sure to understand what you want to do. If you want to change the orientation of the cube a make it follow the direction, maybe you want to keep the Y up. In that camera, I would use Quaternion | Babylon.js Documentation as a second step to align the cube up vector to the world up vector.