planet4dPlanet4D Videos Theory; Planet4D From Circle I; From Circle to Hyperspheres. Episode I : When Tonnetze go 4D. Episode I. Episode II. Episode III. Episode IV. Chapters. 0 Intro; 1 NewtonPlanet texture maps, drawing and rendering galleries, 3D objects, and tutorials. Welcome to JHT's Planetary Pixel Emporium. While the primary focus here is planetary texture