Recreating Cameras - Memory Cost

gamedev44 · January 16, 2019, 7:23pm

I’m having a tricky time resetting the arccamera and freecamera, so I decided to just dispose them and recreate them. I’m doing this when a user loads a new file, so it is not in the midst of a lot of action.

I’m wondering if this will cause some kind of memory leak, by disposing and recreating the cameras many times (for example 20) over a 20 minute session.

Leon · January 17, 2019, 8:11am

If you are calling the dispose() function of the camera that should cleanup everything and not cause any problems.

Since the camera inherits from Node it behaves the same as a cube or a sphere when it comes to being removed.

You can se the source code here if you would like to know what happens

github.com

BabylonJS/Babylon.js/blob/master/src/Cameras/camera.ts#L834


    var direction = Vector3.Normalize(forwardWorld);



    return new Ray(origin, direction, length);

}



/**

 * Releases resources associated with this node.

 * @param doNotRecurse Set to true to not recurse into each children (recurse into each children by default)

 * @param disposeMaterialAndTextures Set to true to also dispose referenced materials and textures (false by default)

 */

public dispose(doNotRecurse?: boolean, disposeMaterialAndTextures = false): void {

    // Observables

    this.onViewMatrixChangedObservable.clear();

    this.onProjectionMatrixChangedObservable.clear();

    this.onAfterCheckInputsObservable.clear();

    this.onRestoreStateObservable.clear();



    // Inputs

    if (this.inputs) {

        this.inputs.clear();

    }

gamedev44 · January 17, 2019, 4:13pm

Great Thanks!

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Recreating Cameras - Memory Cost

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