Trying to rotate something relative to camera the same way something else is rotated relative to the player

Questions & Answers
1

It’s really confusing me. Here’s what I thought should work- or rather the latest of several failed attempts:

var relativeRot : Quaternion = headPos.rotation.LookRotation(targetedModel.forward,targetedModel.up);
modelFruit.rotation = transform.rotation * relativeRot;

“modelFruit” is the transform of an object fixed to the camera, “transform” is the overlaid scope the model fruit and my script are attached to, “targetedModel” is the transform of the actual fruit object in the scene, and “headPos” is the transform of the player in the scene.

I was trying to get it so that the object in the scope is rotated the way it would appear to be rotated if you were looking at it from the player’s point of view, but I can’t see how to convert that into Quaternion functions.

2

If your objects are parented in roughly the same manner, you might find it easier to work with the localRotation property of their transforms.

If you’re lucky, this may be as simple as reading one and assigning it directly to the other. If not, you can probably do more or less the same plus some offset. At the very least, you can probably compare differences across frames, to make sure that one object rotates as the other does.