Simple solar system OpenGL model.
Right now the model has following features:
- Following planets are present:
- Mercury
- Venus
- Earth with Moon
- Mars
- Planets' orbit planes (ecliptic) are inclined to the Sun's equator plane at the correct angle
- Planets' axial tilts are correct
- Moon orbit plane is inclined to ecliptic at the correct angle
- Ascending nodes of orbits are placed correctly
- Arguments of perihelion of orbits are respected
- Time goes in real scale: 1 day per 1 second by default, configurable in sources
- All stellar bodies orbital and siderial periods of revolutions are correct
- All size ratios are correct
- w, a, s, d, z, x - camera movement along three axes
- left, right, up, down arrows, PgUp and PgDown - camera rotation along three axes
- t - toggle speed acceleration by factor of 100
- r - return camera to initial position
- f - toggle fullscreen mode
- o - toggle orbits
- q - quit program
- v - toggle VSync (default is on)
- h - show help message
Buttons on the left edge of screen are for quick go-to function - when the a particular button is clicked, camera is moved to corresponding planet.
You will need:
- Working C++ compiler (g++ or clang++)
- OpenGL headers and libraries
- SDL2 and SLD2_ttf headers and libraries
- GNU compatible make
Compilation is straightforward:
make CXX=g++
or
make CXX=clang++
Makefile supports CXXFLAGS and LDFLAGS variables.
You will need:
- Visual Studio with C++ compiler or Windows SDK (cl.exe, link.exe and nmake.exe)
- OpenGL headers and .lib's. I guess they are installed with Visual Studio
- SDL2 development libraries from http://libsdl.org/download-2.0.php for Visual C++
- SDL2_ttf development libraries from http://www.libsdl.org/projects/SDL_ttf/ for Visual C++
glext.hheader from http://www.opengl.org/registry/oldspecs/glext.h
First of all, unpack SDL2 and SDL2_ttf zip's to this directory. Then copy glext.h to include\GL and move all files from lib\YOURARCH to lib, where YOURARCH is either x86 or x64. Finally launch "Visual Studio command prompt" from Start menu, cd into this directory and type:
nmake -f Makefile.vc
If all goes well, you will get solar.exe file. In order to run it, copy all *.dll files from lib to this directory.
The program itself is licensed under 2-clause BSD license, see LICENSE. Textures are taken from http://www.celestiamotherlode.net, which claims they are free for non-commercial use. Vera.ttf font file is from ttf-bitstream-vera font package with compatible license.