Software & Documentation. (Purchase at website.) Welcome! TheRayTracer™ Classic w/ User's Guide, 2nd Ed. @ $79.99 is the Windows® 8, 8.1, 10 Home/Pro 3D CAD software application for rendering mathematically modeled graphical objects in overall photorealistic computer scenes and/or prototypes with all the aesthetics of shapes, color, lighting, and shadows. It has an interactive, textual user-interface (TUI) with a fast ray-tracing engine; and, it generates bitmaps as color output. Your computer scenes and/or prototypes can be a mixture of simple and compound objects. It uses pure Constructive Solid Geometry (CSG)--which consists of the Boolean operations union, intersection, and difference. Use it for building hierarchical compound objects from a pool of 10 primitives (n/i plane), which themselves first transform into simple objects and subsequently may become part of a reusable compound object/sub-object. Also, it features breakthrough technology for simple and compound transparent objects. I disruptively refer to the driving mechanism of the graphics engine as a software laser engine-device (SLED) rather than the textbooks' "camera" because of the contrasting directionality of the emanating rays for the two distinct concepts. Follow our company (top of page) to receive the latest updates. Features include: Interactive, Textual User-Interface (TUI)... Fast Ray-Tracing Engine ... Driven by the innovative Software Laser Engine-Device (SLED) ... Pure Constructive Solid Geometry (CSG) ... Eleven Primitives ... Simple & Compound Objects ... Shapes/Color/Lighting/Shadows ... Phong Shading ... Transformations ... Transparency/Reflection ... Hierarchical Mediums ... Platonic Solids (Convex Polyhedra) ... Checkerboards ... 3D Cartesian Coordinate System (xyz) ... Bitmap Output File Format (.BMP) ... Ray-Tracing Interface Input File Format (.RTI) ... User's Guide, 2nd Edition (43 pages) ... Text Prompts ... Laser Beam Coordinates Readout ... Elapsed Time Readout.