ZDoom

Edited the wiki page, hopefully is clear enough.

8-)

[wiki=Weapon_properties#Weapon.LookScale]It is on the wiki[/wiki], but lacks the actual documentation.

Oh, I guess it was undocumented, because I never noticed it being a thing.

Yeah. It first made it into 4.0.0.

This was added some 4 months ago, but this thread was forgotten.

Oh, finally. This is going to be quite useful for scopes / aiming down sights.

[url=https://github.com/coelckers/gzdoom/commit/cabe0c583e85ca382aae3e2b35878d5ad9cd4cd9]This was added[/url].

class PistolTest : Pistol {
	override void PostBeginPlay() {
		super.PostBeginPlay();
		LookScale = 0.1;    //10% look sensitivity
	}
}

https://github.com/coelckers/gzdoom/pull/780

As it stands, adjusting the view sensitivity for a player can be done in a roundabout way by fiddling with a weapon's FOVScale and DesiredFOV to "trick" the engine into thinking the player has a higher or lower FOV than they actually do.

This pull request implements a canonical way to do the same without "hacks" by adding a simple multiplier LookScale to the weapon. For example, setting LookScale = 0.5 sets the player's look sensitivity to half.
[code]class PistolTest : Pistol {
override void PostBeginPlay() {
super.PostBeginPlay();
LookScale = 0.1; //10% look sensitivity
}
}[/code]

8-)