camera fly to & occluded annotations

[deez]

Hi, I'm new to all this but I have exhausted my search results so I though I would reach out to the community.  I'm leaning toward babylon.js for a project but I am looking specifically for support for two distinct features. 

1. ability to have camera fly to another point in a scene
2. use occluded annotations

See example: http://xeogl.org/examples/#presentation_annotations_tronTank

Does babylon have any build in functionality to support this?  Is there a similar demo available in the playground?

Thanks in advance!

[brianzinn]

#1 If you change camera position and target - should work as you expect.

#2.  if that is the label - there are things like trackable labels (http://doc.babylonjs.com/overviews/gui).  If you mean occlusion queries that is in 3.1 (http://doc.babylonjs.com/overviews/occlusionquery)

[deez]

Thanks for the response.

1.  I was looking for a way to pan the camera to a new position.  I found a technique using animation.

2.  Trackable labels.  Got it.

[brianzinn]

Cool you got #2.  For #1 you can do animation and that's a pretty good way - just set start and end position and # frames with animation target as camera (animations have easing functions, which look nice, too).  You can also move yourself in one go by setting position or gradually by Lerp (http://doc.babylonjs.com/classes/3.0/vector3#static-lerp-start-end-amount-rarr-vector3-classes-3-0-vector3-)

runRenderLoop(() => {
     var lerp = BABYLON.Vector3.Lerp(startPosition, endPosition, fracDistance);
     camera.position = lerp
}

Adam put up a cool PG using SlerpToRef, but it's for rotation and you just want position, but at least you can play with the fraction and see how it affects movements:
http://playground.babylonjs.com/#UMQ4UR#2