I would like Babylon Engine to have a photorealistic sky, with procedural animated volumetric clouds, time of day with moving sun / moon, night with procedural realistic stars, nightfall and sunset with realistic lightning...
..and why not add a realistic water reflection! Something that is even better than what's found on today's AAA games.
BabylonJS deserves it
After lots of research, I found this amazing ShaderToy which meets all above requirements: https://www.shadertoy.com/view/ltl