Question by Fillipuster · Sep 06, 2017 at 10:13 PM · rotation 3d vector3 quaternion directional

Using a directional vector to orient a sphere?

I'm trying to make an artificial horizon/attitude indicator using some data from another game (KSP). This involves rotating a sphere around based on a directional vector from the other game.

The x, y and z components of the vector range between -1 and 1. My aim is to "translate" this in to a orientation/rotation of a sphere so that the sphere "look" in the same direction.

The problem is, I'm a complete doofus when it comes to quaternions and rotation in 3D space in general, that is why I am here. I have tried to use the yaw, pitch and roll degrees from the other game to rotate the sphere with euler angles, but run in to a strange problem where the sphere will "flip" when it reaches the top of either hemisphere. (video of "flipping" if interested: https://my.mixtape.moe/ynaabg.mp4).

Any help and/or guidance is much appreciated.

-FP

Unity Answers is in Read-Only mode

Unity Answers content will be migrated to a new Community platform and we are aiming to launch a public beta on June 13. Please note, Unity Answers is now in read-only so we can prepare for the final data migration.

For more information and updates, please read our full announcement thread in the Unity Forum.

Answers Answers and Comments

152 People are following this question.