» Firmament
…visualization of the sky’s color using ray marching to model Rayleigh and Mie scattering.
This program was developed as part of my group project for the lecture on Mathematical Modeling and Simulation at KIT. It allows for rendering an idealized version of the sky for any given coordinate and time on earth.
Sources are available on Github and cgit.
Sunrise as seen from Karlsruhe Palace in January
Sun rotating around the earth
Full view of the sky in August
Literature
- Nishita et al. Display of the Earth Taking into Account Atmospheric Scattering. In Proceedings of the 20th Annual Conference on Computer Graphics and Interactive Techniques - SIGGRAPH ’93, 175–82. ACM Press, 1993.
10.1145/166117.166140 - Hillaire. Physically Based Sky, Atmosphere and Cloud Rendering in Frostbite
- Appendix D: Solar radiation, ME 4131: Thermal Environmental Engineering Laboratory Manual