Process

Understanding the Technology and Setting the Design Goals

The optics scientist team assembled the varifocal display, in order to best demostrate the strength of the scientific solution to normal people, they needed an interaction approach and content. My first step was to communicate with the optics scientists to understand how the device works and what porpose they wanted to achieve. Known that the headset enables the viewer to have a clearer, more comfortable 3D vision experience at a near-eye distance than traditional VR optics solutions, the demostration should allow the viewer to see the change and improvement.

Design goals:

• The 3D scene should have multi-distance layers: near, medium, far.
• Design the near scene with more details to reinforce the display's high resolution capability.
• Design a moving object in the scene to allow the viewer to interact with and lead his eyes focal point from far to near, so that he can identify the difference between viewing the near scene and far scene.
• Should allow the viewer to switch on and off the varifocal lenses so that he can compare the vision with and without the varifocal solution.
• Design the scene that is aesthetically pleasing, meaningful, and fun. Reinforce the immersion with sound effects.

Modeling

Modeling -> UV unwrapping -> texturing

Building the Scene in Unity3D

putting the scene models -> adding sky box -> adding water effects -> adding particle effects -> adding wind zone

Implementing the Interaction

The viewer is able to control the movement of the crane through eye-checking sensor or Ardrino. The position of the crane on the path is converted from a series of vibrating sensor data. In order to reduce the vibration of the crane, and ensure natural movements which are ease-in, ease-out, smooth turning, the crane is implemented to lerp its position to an transparent agent on the path.

Code sample: