FreeCamera with noRotationConstraint invert controls

Questions
1

Hi all,

I saw that a freecamera with noRotationConstraint actually invert the control.
https://playground.babylonjs.com/#YGHUGN#2

Why is that?

Regard
Johnny

2

!noRotationConstraint adds an angle limit on X. see :

I guess it’s for legacy reason.

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4

sorry, I don’t understand your question

5

Here is the https://playground.babylonjs.com/#YGHUGN#9

Current camera.rotation is Math.PI, 0, 0 can watch a sphere, but the rotation.x is beyond the limit. What kind of camera rotation can see the sphere while the rotation.x is within the range?

6

There are an infinite number of camera orientation possible that will the sphere visible…depending on camera position.

7

Hi Cedric,

The current camera.rotation vector is <Math.PI, 0, 0>. Is it possible to have another rotation vector, and the camera then has the same rotation view as <Math.PI, 0, 0>, such as <3*Math.PI, 0, 0>? In addition, we require the rotation.x is within the range var limit = 1.570796;

8

depending on camera position, for a same target position, rotation will change :

https://playground.babylonjs.com/#YGHUGN#12

Here, I moved the camera and reset the sphere as target. rotation.x is now closer to 0, within range.

limit = 1.570796 means you can’t turn more than half a circle around the object. so you can’t place the camera anywhere you want to see the object.

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