Very similar technique (raycasting), but for different type of data. https://github.com/s-macke/VoxelSpace https://github.com/s-macke/VoxelSpace The text in t

Very similar technique (raycasting), but for different type of data. https://github.com/s-macke/VoxelSpace https://github.com/s-macke/VoxelSpace The text in the README describes the technique very well. The JavaScript code is a little bit more complicated to read because most of the source contains the usual organizational tasks around the algorithm (initialization, keyboard input, ...). But this is also true for the provided C-code of this article.