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Oxybelis - OpenGL planet renderer

Compilation

To compile this project, simply run make in the project root. The executable can be found in build/target/, or can be run directly using make run.

Dependencies

On linux, the project has no dependencies except for X11 and GL, as a GLFW static library is included. On windows, GLFW must be provided by the system.

Controls

Left mouse button - click window to enable controls, click again to release the mouse.

When the controls are enabled: Mouse movement to control camera pitch and yaw. Q/E to control camera roll. W/S to move forward and backwards. A/D to move right and left. Space/Shift to move up and down. Keyboard arrow up/down to speed camera up and slow down. Esc to quit.

AMD

On AMD cards (at least on mine) the program occasionaly shows a black screen or artefacts on linux. In that case please restart the program until it is fixed. On windows, however, it doesnt work at all. Other cards should be fine.

Screenshots

Evening From Space Light Shafts Northpole Shadows

References & Credits

Eric Bruneton, Fabrice Neyret. Precomputed Atmospheric Scattering. Computer Graphics Forum, Wiley, 2008, Special Issue: Proceedings of the 19th Eurographics Symposium on Rendering 2008, 27 (4), pp.1079-1086.

Franklin Crow, 1977, Shadow algorithms for computer graphics, In Proc. SIGGRAPH, ACM Press, ACM, 242–248.

Brano Kemen, 2009, "Outerra: Logarithmic Depth Buffer". https://outerra.blogspot.com/2009/08/logarithmic-z-buffer.html

Eric Bruneton, 2017, "Precomputed Atmospheric Scattering: a New Implementation". https://ebruneton.github.io/precomputed_atmospheric_scattering/

Eugene Hopkinson, "VoxelStorm". http://voxelstorm.com/

Gianni Milanesi, "A 2D constrained Delaunay triangulation library”. https://github.com/MetricPanda/fast-poly2tri

Lode Vandevenne, "LodePNG". https://lodev.org/lodepng/

Camilla Lowy, Marcus Geelnard & contributors, "GLFW - An OpenGL library". https://www.glfw.org/

Jason Bevins, 2003-2007, "libnoise: a portable, open-source, coherent noise-generating library for C++". http://libnoise.sourceforge.net/index.html

David Herberth & contributors, ”Multi-Language Vulkan/GL/GLES/EGL/GLX/WGL Loader-Generator based on the official specs”. https://glad.dav1d.de/

darth_biomech, "Milky Way Skybox". https://steamcommunity.com/sharedfiles/filedetails/?id=670717906