Smooth Voxels uses vertice averaging instead of marching cubes and offers a text-based file format easy to keep and edit, along with advanced control of geometry and material. The code is not on Github, but here's the author who is responsive by email and might be interested.
Smooth Voxels uses vertice averaging instead of marching cubes and offers a text-based file format easy to keep and edit, along with advanced control of geometry and material. The code is not on Github, but here's the author who is responsive by email and might be interested.