Orbit-camera setting zoom distance with a tween

Help & Support
1

Hi, Im using the orbit-camera script and I want to tween the current distance between the camera and its target using the tween library but I cant figure out how to access the variable (what is the variable I need?) to make the move.

I’m guessing it should be something like this but I dont know what variable to use…

this.cameraScript.tween(this.cameraScript.currentDistance()).to(newDistance), this.tweenTime, pc.SineOut).start();

Cheers

2

Project sample reference: Orbit camera | Learn PlayCanvas

Refer to the mouse and touch controls where they zoom in/out:

https://playcanvas.com/editor/code/438243?tabs=6861120&line=123

MouseInput.prototype.onMouseWheel = function (event) {
    this.orbitCamera.distance -= event.wheel * this.distanceSensitivity * (this.orbitCamera.distance * 0.1);
    event.event.preventDefault();
};

this.orbitCamera is the a reference to the orbit camera script. distance is the distance from the camera to the focus point

3

Thanks but when I do something simply like:

this.orbitCamera.distance=20;

(where this.orbitCamera refers to the orbitCamera script on my camera), it has no effect on the camera at all.

Im not sure what Im doing wrong.

4

Should work unless some other script is also updating the property. Also, check the min/max distance limits on the orbit camera.

I would recommend to start debugging in the orbit camera script on the distance property to see what values it is being updated with

5

Just tried it directly in the project and it seems to be working fine as long as the number is within the limits of distanceMax and distanceMin

6

Aah, it looks like its not working because the cameras target position is tweening at the same time. I guess this must be overriding it. Pity I cant seem to do both at the same time but I guess this will do.