Conclusion:
Oculus is cool, Unity is powerful.
Process:
Trying to build a landscape VR environment
Design decisions:
Use UniSky for weather and atmosphere FX
Time/Weather/Style(realistic, comic, etc)/Theme switches
Layers:
Sky + Sun
Thick Cloud 积雨云层
Thin/Sparse Cloud (Landscape viewable from here)
Characters (角色、生物层）
Vegetation（植被层）
Ground
