Freeze Rotation

[Gam3r GEEk]

I will just get straight to the question,
how can I stop a object from rotating on the X and Z axis but continue to rotate on the Y?

[Norbo]

You can set the inverse inertia tensor matrix so that certain axes have essentially infinite inertia, preventing rotation around them. To do what you want specifically:

Code: Select all

                    Matrix inertiaTensorInverse = box.localSpaceInertiaTensorInverse;
                    inertiaTensorInverse.M31 = 0;
                    inertiaTensorInverse.M32 = 0;
                    inertiaTensorInverse.M33 = 0;
                    inertiaTensorInverse.M11 = 0;
                    inertiaTensorInverse.M12 = 0;
                    inertiaTensorInverse.M13 = 0;
                    box.localSpaceInertiaTensorInverse = inertiaTensorInverse;

where each row 1 is X, row 2 is Y, and row 3 is Z.

[Gam3r GEEk]

Thanks that should do it.