We're used to seeing notifications everywhere, from our phones to our computers and Windows Mixed Reality is no exception. Referencing to Windows 10 notification toasts, we tried multiple combinations of layout, materials, light, and motion with simple interactions.
Teaming with Alex Gough, I mainly focused on reactive materials and motion through strokes, panel brightness, transparency, and color. Materials also appear to be aware of the cursor's location, such as appearing more solid when hovering over a panel or becoming luminous via a lighting effect only on buttons.
Notifications are '2.5D' mini-panels that always faces the user since it's meant to be noticed, but not obtrusive so that it doesn't interfere with the overall 3D experience. When a toast appears, it can be dismissed either by time-out or the user can hover on the toast to reveal buttons that they can act upon such as 'Ignore'.
Below are samples from three different visual explorations of materials (light, dark, and flat), and motion studies that allowed us to get a feel of how fast the interaction behaviors should feel.