I'd like to add a scale in my scene, then resize the scale on zoom.
I work with an orthographic camera and the trackball orthographic controller.
The scale lets the user know the dimensions of the image he is looking at - (see green scale on the left of the screenshots)
Before zoom:
After zoom:
Which would be the best approach with THREEJS? - have a 'scale' object in the scene and resize it somehow? - overlay a div on top of the renderer and also resize it somehow? - overlay a new renderer?
Is there any example of such implementation somewhere already?
Best,