wtf is voxelspace?

Voxel Space is a project that recreates a classic 1990s terrain-rendering technique in just a few lines of code. It lets you build a 2.5D landscape, like flying over mountains and valleys in an old flight simulator, without needing a modern 3D graphics engine. The repo includes a live web demo so you can see the effect immediately, along with the code and map files to run it yourself. The method works by reading two simple 2D images: a height map (which says how tall the terrain is at every point) and a color map (which says what color to draw). The algorithm then draws the scene column by column across the screen, from back to front, painting vertical lines whose length depends on the terrain height and distance. Because the color map already includes shading and shadows, the engine doesn't have to calculate lighting, it just draws what the map says. This approach was made famous by NovaLogic's 1992 helicopter game Comanche, which looked years ahead of its time despite running on hardware far weaker than any phone today. Anyone curious about retro game graphics, demoscene-style coding, or how to make a convincing landscape with minimal code would find this instructive. It's a teaching tool more than a production library, useful for learning, prototyping, or just appreciating an elegant hack. The key tradeoff is that it's a 2.5D engine, not full 3D. You can't represent overhangs, buildings, or anything requiring more than one height per map position. It also can't show geometry above the terrain, only the ground itself. The terrain maps included are reverse-engineered from the original Comanche game, and the README notes the Voxel Space technique may still be patented in some countries, so it's best treated as an educational reference rather than something to ship in a commercial product.