Spherical thumbnails

Spherical 360-degree images deserve better than a plain ol' paint-chip thumbnail images, don't you think? I suggest that we display them as small balls. Maybe we should call them thumb-tips or thumb-marbles. Anyway, let's do a little hacking to make this happen.

Add a sphere to the Thumbnail class

In the Thumbnail class, add a sphere variable:

    public Sphere sphere;

Modify setImage to recognize a photosphere image:

    public void setImage(Image image) {
        // ...
        // show it
        if (image.isPhotosphere) {
            UnlitTexMaterial material = (UnlitTexMaterial) sphere.getMaterial();
            material.setTexture(image.textureHandle);
        } else {
            image.showThumbnail(cardboardView, plane);
        }
    }

We must also change setVisible to handle both the plane and sphere variables, as follows:

    public void setVisible(boolean visible) {
        if(visible) {
            if(image.isPhotosphere){
                plane.enabled = false;...