The function Input.MOUSE_MODE_CAPTURED, is failing

[HectorVe]

Godot version

3.4.4

System information

Win10, OpenGL3

Issue description

When the function is called, and I try rotate the Camera3D, the movement is incorrect of mouse

Steps to reproduce

func _input(event):
if event.is_action_pressed("ui_cancel"):
mode = true if !mode else false

	if mode:
		Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)
		get_tree().paused = true
	else:
		# THE BUGED FUNCTION IS THE NEXT
		Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
		get_tree().paused = false

Minimal reproduction project

corregir_error.zip

[BraqueDown]

NOTE: The code in the Steps to reproduce are not at all representative of the code in the MRP, and does not reflect the actual problem.

Having looked at the MRP, your issue is that InputEventMouseMotion.relative returns shorter distances when using MOUSE_MODE_CAPTURED than with MOUSE_MODE_VISIBLE. (Making this a duplicate of #54818.)

There's a great explanation here: #56669 (comment)

MOUSE_MODE_CAPTURED causes InputEventMouseMotion to be triggered more often every frame, spreading the distance out in smaller parts.

Your camera rotation script stores this motion in camera_change. You run your aim() function once per rendered frame before zeroing out camera_change, but there can be multiple InputEvents every rendered frame. You're discarding most of your mouse motions. Since these motions are much smaller with MOUSE_MODE_CAPTURED, your apparent sensitivity is lower.

To fix this, you can either:

1. Fire the aim() function in your _input function instead of _process and pass event.relative as an argument into aim(). This means the function will only fire when the mouse is moved.
2. Increment camera_change by event.relative instead of assigning it. This will make sure that every mouse motion is included in camera_change before it's cleared.

TL;DR

Change this:

func _input(event):
	if event is InputEventMouseMotion:
		camera_change = event.relative

to this:

func _input(event):
	if event is InputEventMouseMotion:
		camera_change += event.relative

[Calinou]

Duplicate of #54818.

@BraqueDown Thanks for the insightful explanation 🙂

[HectorVe]

Thanks @BraqueDown ♥, I could fix the error with your help, and I see I'm very bad for find solutions. -_-

[BraqueDown]

No problem!
You can close this issue now.