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- David K. Buck and Aaron A. Collins are pleased to announce the release of the
- new DKBTrace Version 2.10 program, over the weekend of April 14, 1991.
-
- The program is a ray tracer written completely in C. It is a photo-realistic
- 3-D object rendering shader, suitable for realizing the output of CAD programs
- or generally wasting LOTS of CPU time drawing pretty pictures. It features a
- command-line interface and reads plain text input files in an easy to use and
- understand "structured" scene description language. It writes output files in
- several popular 24-bit image formats, including DKB/QRT "Raw" and Truevision
- Targa-24 formats.
-
- DKBTrace supports spheres, planes, triangles, smooth (Phong) triangles,
- arbitrary quadric surfaces (spheres, ellipsoids, cones, cylinders, planes,
- paraboloids, hyperboloids, etc.) and quartic surfaces (which include tori,
- lemniscates, foliums, etc.) It also supports constructive solid geometry
- and composite objects, so a nearly infinite variety of object shapes can be
- produced from the several simpler geometric primitives.
-
- Lighting and shading models used are: diffuse, ambient, reflection, refraction
- and alpha (transmittance), and Phong specular highlighting. These combine
- with a rich set of procedural textures and atmospheric effects (fog) to make
- realistic and interesting looking scenes.
-
- The object coloration textures available are: checkers, marble, wood, Bozo,
- granite, agate, spotted, gradients, and image-mapping. Image-mapping allows
- the use of IFF (32 color and HAM), GIF (2-256 color), or 24-bit DKB/QRT "Raw"
- images. Several surface perturbing (or bump-mapping) textures such as waves,
- ripples, bumps, dents, and wrinkles are available for use in combination with
- the coloration textures to help make more natural-looking object textures.
-
- The program has been made freely distributable, however the author retains
- the copyright to the program. He specifically authorizes free distribution on
- BBS'es, networks or by magnetic media. Source code, documentation, and sample
- scene description data files are available in separate archives, and make and
- link files are provided for Amiga, IBM PC, Macintosh, VAX/VMS and many Unix
- Systems.
-
- DKB 2.10 is available from a wide variety of sources including Internet and
- Compuserve's COMART section. There is a Ray-Trace specific bulletin board in
- the Chicago area called the "You Can Call Me RAY" BBS, which has become the
- "unofficial" DKB support BBS, where both David and Aaron can be reached.
- The number there is (708) 358-5611, at 2400 baud, 8 bits, no parity, 1 stop.
-
-