Consistently shifting the Aframe camera towards the focal point

Is there a way to continuously adjust the view of my Aframe scene based on the current viewing direction?

It seems like there are two key components needed for this: (1) obtaining the current viewing direction in the correct format, and (2) creating and updating a continuous animation that aligns with the camera's viewing direction.

I was able to retrieve the camera's viewing direction using this code snippet:

        <script>
AFRAME.registerComponent('listener', {
  tick: function () {
    var position = this.el.getAttribute('position');
    var rotation = this.el.getAttribute('rotation');
  }
});
        </script>

Now, how can I generate an animation that moves according to the camera's viewing angle, perhaps adjusting with the current tilt?

I attempted the following approach for motion:

AFRAME.registerComponent('listener', {
  tick: function () {
    var camp = document.querySelector("#cameraWrapper");
    camp.setAttribute('position', camp.getAttribute('position').add(0.1)););
  }
});

Answer №1

In my opinion, the direction of view should be in the type THREE.Vector3(), and you can retrieve the direction like this:

var camera = document.querySelector("a-camera");
var direction = new THREE.Vector3().copy(camera.getWorldDirection());

Since the tick function runs in every render loop, using the component tick function for movement implementation may eliminate the need for an animation. Simply move the camera a small step in the viewing direction. The code would look something like this:

tick: function() {
    var camera = document.querySelector("a-camera");
    var stepFactor = 0.1;
    camera.parent.position.add(this.direction.multiplyScalar(stepFactor));
}

I included the required scripts and structured the HTML page to facilitate camera movement. The component is attached to the a-camera entity, hence, this.el holds the a-camera DOM element.

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