The issue of Gimbal Lock in rotation within Three JS

Question

The issue of Gimbal Lock in rotation within Three JS

It appears that the quaternion rotation in Three JS can still experience Gimbal Lock.

To replicate the issue, follow these steps:

1) Go to the Three JS Editor. 2) Add a Cylinder and set the z value to 1.57 (the middle text box for rotation). 3) Try changing the values in y or x radians (the left or right text boxes for rotation).

You'll notice that both x and y rotations produce the same result. Any suggestions on how to prevent this?

As far as I know, Three JS uses quaternions by default and Gimbal Lock typically occurs when using Euler angles.

Thank you!

javascript rotation three.js quaternions euler-angles

Answer 1

Answer №1

When working with code in three.js, consider adjusting the quaternion property of an object rather than the rotation property. This approach can help prevent gimbal lock issues that may arise when using quaternions.

In most editors, editing is limited to euler angles. However, since multiple euler angle representations can map to the same quaternion, the resulting rotation can be ambiguous;

Answer 2

When working with code in three.js, consider adjusting the quaternion property of an object rather than the rotation property. This approach can help prevent gimbal lock issues that may arise when using quaternions.

In most editors, editing is limited to euler angles. However, since multiple euler angle representations can map to the same quaternion, the resulting rotation can be ambiguous;

Answer 3

Answer №2

When you want to rotate a mesh object using quaternion, you can achieve this by setting the rotation with the desired quaternion values instead of Euler angles.

var custom_quaternion = new THREE.Quarternion();
custom_quaternion.setFromAxisAngle(new THREE.Vector(0,1,0), Math.PI/2);
mesh.rotation.setFromQuaternion(custom_quaternion, "XYZ", true);

Answer 4

When you want to rotate a mesh object using quaternion, you can achieve this by setting the rotation with the desired quaternion values instead of Euler angles.

var custom_quaternion = new THREE.Quarternion();
custom_quaternion.setFromAxisAngle(new THREE.Vector(0,1,0), Math.PI/2);
mesh.rotation.setFromQuaternion(custom_quaternion, "XYZ", true);

The issue of Gimbal Lock in rotation within Three JS

Answer №1

Answer №2

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