Voxel Space like algorithm implemented in Plan9.
Install git from https://github.com/oridb/git9 then
% git/clone git://github.com/mauri870/VoxelSpace9.git
You can also grab a tarball
% hget https://github.com/mauri870/VoxelSpace9/archive/main.tar.gz | tar xvz
Compilation is done with mk, altrough you can build on linux using plan9port
% mk
On linux
% make
In order to run use a rc script provided with the code
% RunVoxelSpace
Use WASD to move around or toggle cameraautomove from the settings by clicking the right mouse button.
The original sources for the colormaps/heightmaps are listed below.