Surfaces in Space vs Escher Blocks

A 3D viewer for mathematical surfaces. Visualize and interact with parametric shapes including spheres, tori, Klein bottles, Möbius strips, and more. Features: - An expanding catalogue of both vertex-based, tessellated surfaces, and a physical objects category - Rotate, zoom, and pan with (multi-)touch gestures - Auto-rotate along an axis, adjust speed with a dismissible slider - Adjustable tessellation detail via a dismissible slider - Adjustable tessellation fill: solid or wireframe - Adjustable vertex primitives: points, lines, triangles - Adjust point size with a dismissible slider - Optional ripple effect on vertex-based surfaces - Optional rotating light for most surfaces - Customizable background color, background image - Save 10-bit snapshots - Restore previous session, start fresh, or randomize launch - Import .stl (STL) or .obj (OBJ) files for viewing - choose culling mode: none, back, or front - spatial environments: standard / default, Milky Way panorama, a black hole, and - free camera mode: toggle on/off in settings to freely move camera around environment - control free camera mode with a game controller or keyboard (wasd + arrows)

Escher Blocks — An isometric sketchbook. Escher Blocks is a drawing app for creating block-based 3D art and isometric line drawings. Stack colorful cubes to form shapes, then trace their edges to explore structure and depth. Start with blocks, move to lines, or draw directly in 3D—it’s entirely up to you. Use imagination and creativity to build impossible objects and optical illusions & forms that loop, twist, and gently challenge how depth and perspective are perceived, all within a clean isometric grid. Whether you’re learning 3D perspective, practicing technical drawing, or simply doodling, Escher Blocks makes 3D drawing feel intuitive, expressive, and fun. Key Features: * Build 3D forms by stacking colored cubes * Create impossible objects and paradoxical structures * Convert blocks into clean isometric line drawings * Draw edges and wireframes directly in 3D space * Learn perspective by seeing blocks before drawing lines * Lightweight, distraction-free drawing experience * Designed for artists, students, and 3D enthusiasts