Axis Input "Dead" problematic for diagonal input

Just wanted to point out that when using the Input Manager and setting "Dead" (the portion where Joystick Movements are ignored) creates problems.

Example Analog Stick:

When setting Dead to "0.0" you get the raw values - good
When setting Dead to "0.5" you get a new scale from 0 to 1 STARTING with 0.0 where previously 0.5 was

Why is this a problem? Diagonal movement magnitude is reduced by Dead:
- if your Diagonal Vector consisted out of Vector2(0.707,0.707), it will now read: Vector2(0.414,0.414)
- a magnitude of 1 will become 0.58 if Dead is at 0.5
- Dead higher 0.0 will always decrease your diagonal input magnitude


this is why (geometry):


these are also the readings i get when i set one axis at Dead:0.5 and the other at Dead:0.0
(somehow one analog stick of mine affects both "y axis" and "axis 5" for x-movement, making this test easy)



Verdict: Always clamp the analog-stick-magnitude yourself and leave Dead on 0.0
Fix for UnityDevs: offer Flag "startFromDead": don't rescale the axis from the dead-value, just start with the Dead value and Clamp every input below Dead to zero.

This is how i do it to have homogenous magnitudes in all directions and Dead:

Spoiler

Code (csharp):

1. //GAMEPAD
2. moveDir = new Vector3(Input.GetAxis("x axis"), 0F, Input.GetAxis("y axis"));
3.  
4. //Clamping and Dead
5. float moveDirMag = moveDir.magnitude;
6. float axisDead = 0.2F;  
7. if(moveDirMag    < axisDead){
8.     moveDir = Vector3.zero;
9. }else{
10.     moveDir = moveDir.normalized *Mathf.Clamp(moveDirMag, axisDead, 1F);
11. //  moveDir = moveDir.normalized *Mathf.InverseLerp(axisDead, 1F, moveDirMag);//if you want to start at 0F magnitude, untested
12. }

If you need to start the magnitude at 0F rather than with axisDead, you need to rescale the value according to your new-axis-min (=axisDead) and 1F. I didn't test it, but inverse lerp on magnitude should achieve this