Look Rotation Viewing Vector Is Zero log every update

[neichner]

In the AngularClamp method there is a bug that causes Quaternion.LookRotation to get Vector3.zero values, which aren't allowed.

For extremely low values, this will cause an issue because Unity's internal Normalize method does the following:

float num = Vector3.Magnitude(this);
if ((double) num > 9.999999747378752E-06)
  this = this / num;
else
  this = Vector3.zero;

This will return a Vector3.zero which will then be put in the Quaternion.LookRotation() method.
This will cause unity to throw the log message: Look Rotation Viewing Vector Is Zero.
Which happens every update and is slightly annoying.

So the fix here is to do the same check with checking the magnitude for that same low value that unity internally does.

[keveleigh]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[Ali-Can-Keskin]

I receive the same log spam when I try to run Input Simulation on WebGL builds, while trying to get the hand simulation running.