A little more foam.

The pictures show a difference. The controls let you explore it. Change one cup while keeping the other two beside it.

The comparison uses one fixed glass scale. Adding foam there adds volume, rather than taking milk from another setting.

The barista uses different, simplified rules: air increases the volume of the same milk; a deeper wand reduces the drawn bubble size. Its timing and temperature are accelerated design choices, not a fluid simulation or a way to learn safe steaming.

Blender supplies the editable pitcher, cup and wand. Three.js draws the scene. Colours, bubbles and the drink descriptions are illustrative, not predictions of taste. Reloading resets your cups.