# collinsengineering.com > AI-optimized mirror of collinsengineering.com containing 25 pages totalling 1,124 words of clean markdown content, structured data, and semantic HTML. Original source: https://collinsengineering.com/. Last updated: 2026-06-16T05:14:52.394Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Grand Reopening: June 28th, 2026](/content/site-root.html): Grand Reopening: June 28th, 2026 TM "A Commitment to Excellence in Engineering!TM" Computer Software Manufacturer Worcester, MA 01609 1-833-825-8176 ******************** TheRayTracer TM Classic w/ TheRayTracerTM User's Guide @ $79 for Windows(R) 11 Pro/Home Shop 24/7 ******************** CLICK ON SAMPLE IMAGES BELOW FOR MORE DETAIL: Bagel Tubes Jewels Transparency ******************** CLICK ON SAMPLE TEXTUAL USER-INTERFACE (TUI)… (88 words) ## Articles & Blog Posts - [collins-engineering-inc/shopping-store/users-guide-photo/index.html](/content/collins-engineering-inc/shopping-store/users-guide-photo/index.html) (1 words) - [Cartoon Convertible](/content/collins-engineering-inc/gallery/cartoon-convertible/index.html): “Cartoon convertible” made from simple and compound objects, showing motion with the help of the shearing transformation.  The “curved” windshield and inset headlights are transparent. BACK (28 words) - [Little Red House on the Prairie](/content/collins-engineering-inc/gallery/little-red-house-on-the-prairie/index.html): “Little Red House on the Prairie” with sunny blue sky.  The front of the house has an opened wooden door showing a tiled floor.  Also in front is a picture window.  There is beige paint on the inside walls as can be seen through the multiple windows.  In addition to the sun, there is a… (92 words) - [Suspended Objects](/content/collins-engineering-inc/gallery/suspended-objects/index.html): Three simple objects suspended inside a giant, hollow, “yellow” sphere, which also encloses the Software Laser Engine-Device (SLED) and the light source, with a somewhat mild “sunny” affect in the backdrop.  BACK (34 words) - [All Simple Objects](/content/collins-engineering-inc/gallery/all-simple-objects/index.html): All simple objects—sphere, checkerboard, cylinder, cone, cube (hexahedron), octahedron, tetrahedron, icosahedron, dodecahedron, and torus (toroid)—on a gray plane. BACK (22 words) - [House (interior)](/content/collins-engineering-inc/gallery/house-interior/index.html): Interior view of the house:  Picture window and opened door let light in from the front-left outside light source.  There is also a light source inside the house to illuminate, and show definition of, the fireplace.  BACK (39 words) - [Phong Shading](/content/collins-engineering-inc/gallery/phong-shading/index.html): Two objects with high numerical “Phong-shading” exponents. BACK  (10 words) - [[“Ghost” Sailboat](/content/collins-engineering-inc/gallery/ghost-sailboat/index.html)](/content/collins-engineering-inc/gallery/ghost-sailboat/index.html): “Ghost” sailboat on still waters with silvery moon in midnight blue sky.  (The sail is two dimensional, created by intersecting a cone with a square.)  Note: No image enhancement was done after the render. BACK (37 words) - [SDK Info](/content/collins-engineering-inc/shopping-store/sdk/index.html): Source Code!! Another quality product from Collins Engineering, Inc.!  TheRayTracerTM SDK Utilities Software Development Kit Lifted verbatim from TheRayTracerTM Classic v3.0 Written in pure C 49 functions plus data structures; 771 lines of source code, plus header color: 11 matrix: 8 point: 10 ray: 4 vector: 16 All the building blocks: you focus on the… (78 words) - [Cover Sheet](/content/collins-engineering-inc/cover-sheet/index.html): TheRayTracer TM Classic v3.0, along with TheRayTracerTM User's Guide, 3rd Ed., for Windows(R) 11 Pro/Home @ $79.   Recommended for ray-tracing enthusiasts with some mathematical ability on high-end personal computers and laptops. In our online Shopping Store, extra TheRayTracer User's Guides are available @ $49 each, and extra TheRayTracer Classic software are available @ $39 each.… (191 words) - [Bio](/content/collins-engineering-inc/bio/index.html): Paul A. Collins ~ Brief Bio President & CEO Wrote TheRayTracer from scratch in the C programming language,  along with its User’s Guide, during ’08-‘09, ’11; 20 months total Familiar with C++ Thirty-five years in the computer industry Wrote my first industrial ray tracer in ’89-‘90 Founded Collins Engineering in ’88; Incorporated it in ‘12… (112 words) - [Gallery](/content/collins-engineering-inc/gallery/index.html): 1. All Simple Objects 2. Cartoon Convertible 3. “Ghost” Sailboat 4. House (interior) 5. Little Red House on the Prairie 6. Phong Shading 7. Suspended Objects 8. Tin Man 9. Toy Biplane 10. “Winter Wonderland” Holiday Images HOMEPAGE (29 words) - [Features](/content/collins-engineering-inc/features/index.html): Interactive, Textual User-Interface (TUI) Fast Ray-Tracing Engine Software Laser Engine-Device (SLED) Pure Constructive Solid Geometry (CSG) 11 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, 3rd Edition (47… (65 words) - [Policy](/content/collins-engineering-inc/policy/index.html): Privacy Policy — We do not share our customer data with third parties and, furthermore, we keep it secure within the corporate cloud and duplicate it in our corporation onsite. Terms & Conditions — Products are not returnable. End-User License Agreement (EULA) — Piracy of our products [software and/or documentation] is strictly prohibited by and… (65 words) - [Shopping Store](/content/collins-engineering-inc/shopping-store/index.html): Coming soon! Products TheRayTracer Classic v3.0 with TheRayTracer User's Guide, 3rd Ed. @ $79 TheRayTracer Classic v3.0 (alone) @ $39 TheRayTracer User's Guide, 3rd ed. (alone) @ $49 TheRayTracer SDK v3.0 with TheRayTracer User's Guide, 3rd Ed. @ $199 TheRayTracer SDK v3.0 (alone) @ $179 TheRayTracer RTI Files (13 samples) @ $39 User's Guide Photo… (60 words) - [About – CollinsEngineering](/content/collins-engineering-inc/about/index.html): Address: Collins Engineering, Inc. Worcester, MA  01609 Phone: 1-833-825-8176 Website: www.CollinsEngineering.com Email: Admin@CollinsEngineering.com HOMEPAGE (15 words) - [Testimonials](/content/collins-engineering-inc/testimonials/index.html): Great for 3D Graphics Artists/Designers who know some math and who want all the aesthetics of shapes, color, lighting, and shadows in their opus! ~ PAC 3/17/2026 Email us with your testimonial! Testimonials@CollinsEngineering.com HOMEPAGE (35 words) - [[Screenshot\#3](/content/collins-engineering-inc/screenshot3/index.html)](/content/collins-engineering-inc/screenshot3/index.html): HOMEPAGE (2 words) - [[Bagel](/content/collins-engineering-inc/bagel/index.html)](/content/collins-engineering-inc/bagel/index.html): Bagel on a red & white checkered tablecloth.  The bagel is a toroid compound object, and the overall scene has color, lighting and shadows. HOMEPAGE (26 words) - [[Screenshot\#2](/content/collins-engineering-inc/screenshot2/index.html)](/content/collins-engineering-inc/screenshot2/index.html): HOMEPAGE (2 words) - [Tubes](/content/collins-engineering-inc/tubes/index.html): Oxidized copper tubes reflected in a faint, angled mirror.  The tubes are hollow cylindrical compound objects, and the overall scene has color, lighting and shadows. HOMEPAGE (27 words) - [Transparency](/content/collins-engineering-inc/transparency/index.html): Glass sphere embedded inside of a glass cone.  This compound object consists of individual transparent objects with differing indices of refraction, and the overall scene has color, lighting and shadows. HOMEPAGE (32 words) - [Jewels](/content/collins-engineering-inc/jewels/index.html): Emerald, ruby and sapphire jewels on an infinite clay plain.  These are icosahedron, octahedron, and dodecahedron platonic solids (convex polyhedra), respectively; and the overall scene has color, lighting and shadows. HOMEPAGE (32 words) - [[Screenshot\#1](/content/collins-engineering-inc/screenshot1/index.html)](/content/collins-engineering-inc/screenshot1/index.html): HOMEPAGE (2 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/robots.txt): Crawler directives