Qumulus is a weather and atmospherics module for Quest3D. It features:

• Realistic display of the weather and celestial bodies
• Rain, snow, everything from a sunny day to lightning and thunder
• Six cloud families, lightning, fog, sun, moon, stars
• Easy implementation in any Quest3D project
• No pixel shaders used, it is all optimized for performance
• Dynamic weather conditions, editable in runtime or in the Quest3D editor
• A modular setup, ensuring ease of use and allowing on-the-fly upgrades
• Documentation and tutorials in the Developer’s Manual
• Over a hundred templates, ready to use in any project

The Qumulus demo won 3rd prize in the official Quest3D demo competition 2006.