zoomCamera Puzzle with Offset

I just had to extend the zoomCamera function with a offset. If anyone got the same “issue” here is the altered function:

// zoomCamera puzzle
function zoomCamera(objSelector, duration, offset, doSlot) {

    duration = Math.max(0, duration);

    var objNames = retrieveObjectNames(objSelector);

    var zoomObjects = [];
    objNames.forEach(function(name) {
        var obj = getObjectByName(name);
        if (obj) {
            zoomObjects.push(obj);
        }
    });

    if (!zoomObjects.length) {
        return;
    }

    var camera = appInstance.getCamera();

    var pos = _pGlob.vec3Tmp, target = _pGlob.vec3Tmp2;
    v3d.CameraUtils.calcCameraZoomToObjectsParams(camera, zoomObjects,
            pos, target);

    if(offset){
        pos.x += offset;
        pos.y += offset;
        pos.z += offset;
    }

    if (appInstance.controls && appInstance.controls.tween) {
        // orbit and flying cameras
        if (!appInstance.controls.inTween) {
            appInstance.controls.tween(pos, target, duration, doSlot);
        }
    } else {
        // TODO: static camera, just position it for now
        if (camera.parent) {
            camera.parent.worldToLocal(pos);
        }
        camera.position.copy(pos);
        camera.lookAt(target);
        doSlot();
    }
}

I just added the variable offset which is just a number, which gets added to the calculated position when set. This way I can control the distance of the camera to the object I would like to zoom on.

There will be for sure a better approach, but this one is working for me. Maybe the devs can implement that functionality in the future to the function “the right way”.