Real-time fragment shader raytracer
ThinkInsideTheBox is a professional-grade 3D physics simulation studio that runs entirely in your browser. Build real-time physics scenes with rigid body dynamics, cloth simulation, GLSL shader editing, procedural mesh generation, and JavaScript physics scripting. No downloads or installs required.
Features include adjustable mass, friction, and restitution for rigid bodies; Verlet-integrated cloth with configurable wind and pin points; a full GLSL shader editor; procedural geometry from code; per-frame JavaScript scripting; GIF recording; and cloud storage with one-link sharing.
The simulation studio is completely free to use. Cloud storage plans are available for saving and sharing scenes online.