OpenBSD ports

The astro/calcmysky port

calcmysky-0.2.1 – simulator of light scattering by planetary atmospheres


CalcMySky is a software package that simulates scattering of light by the
atmosphere to render daytime and twilight skies (without stars). Its primary
purpose is to enable realistic view of the sky in applications such as
planetaria. Secondary objective is to make it possible to explore atmospheric
effects such as glories, fogbows etc., as well as simulate unusual environments
such as on Mars or an exoplanet orbiting a star with a non-solar spectrum of

The simulation is based on E. Bruneton's Precomputed Atmospheric Scattering
( paper and the updated implementation of
the demo ( This
in particular limits the atmosphere to spherical symmetry (which means localized
clouds are not supported, and ground albedo is the same all around the globe).

An additional capability is simulation of solar eclipses, which is currently
limited to two scattering orders, while the non-eclipsed atmosphere can be
simulated to arbitrary order.

This package consists of three parts:

 * `calcmysky` utility that does the precomputation of the atmosphere model to
    enable rendering,
 * `libShowMySky` library that lets the applications render the atmosphere
 * `ShowMySky` preview GUI that makes it possible to preview the rendering of
    the atmosphere model and examine its properties.

Only for arches
aarch64 aarch64 alpha amd64 amd64 arm arm hppa i386 i386 mips64 mips64 mips64el mips64el powerpc powerpc powerpc64 powerpc64 riscv64 riscv64 sparc64

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