Collins Engineering, Inc. specializes in 3D CAD (Computer-Aided Design) software. The product TheRayTracer™ Classic v3.0 is capable of handling simple and complex objects, including different shapes, color, lighting, shadows, reflections, and transparency. It has an interactive, textual user-interface (TUI) and a fast raytracing engine. It is driven by the innovative Software Laser Engine-Device (SLED). The companion handbook, TheRayTracer™ User's Guide, is in its 3rd edition and has 49 pages. Another product, TheRayTracer™ SDK v3.0, is a utilities software development toolkit. Written in pure C, it is lifted verbatim from TheRayTracer™ Classic v3.0. It has 49 functions plus data structures (771 lines of source code, plus header). Owner Paul Collins has over thirty-five years in the computer industry and began programming when he was in high school. He developed TheRayTracer™ from scratch in '08-'09, '11. He personally holds multiple certifications with Microsoft and Cisco.