Ray Tracing News Guide

"Light Makes Right"

Compiled by Eric Haines, 3D/Eye Inc, 1050 Craft Road, Ithaca, NY 14850 erich@eye.com . Opinions expressed are mine, not 3D/Eye's.

Archive locations: anonymous FTP at ftp://ftp.povray.org/pub/povray/Ray-Tracing-News/, ftp://princeton.edu/pub/Graphics/RTNews/, ftp://wuarchive.wustl.edu/graphics/graphics/ray/RTNews/,and others.

Cumulative table of contents started by Joe Cychosz, 3ksnn64@ecn.purdue.edu (Thanks, Joe!).

For a wider view of the world, check out the Mother of all Ray Tracing Pages.

RTNv9n2: January 24, 1996

Introduction
Advice to Authors, by Anonymae

RTNv9n1: January 18, 1996

Introduction
Results of the Name that Area Ratio Contest, by Eric Haines and Arijan Siska
Another Contest: Sphere in Box ratio, by Eric Haines
Ray Tracing Roundup
A Freeware modeller supporting VRML, by Stephen Chenney
3D Point Hashing, by Steve Worley
5D vs. BSP and ABVH, by Nguyen Duc Cuong aka "JuHu"
Interacting with Ray Traces, by Bert Peers
Hierarchical Techniques for Glossy Global Illumination, by Per Christensen
Global Illumination SIGGRAPH meeting, by Greg Ward
Total Internal Reflection, by Eric Haines, Greg Ward, and Chris Larson
Pretemporal Imaging Systems, by Ken Musgrave and Eric Haines
PNG Status, by Tim Wegner and Tom Lane
Cinematography References, by Dan Wexler
Getting Rid of the Divide, by Frank Compagner and Bob Pendleton

RTNv8n3: August 2, 1995

Introduction
Contest: Name that Area Ratio
Ray Tracing Roundup
On-Line Computer Science Bibliography Collection, by Alf-Christian Achilles
Comments on RTNv8n1, by Alexander Enzmann
Dore' Now Free, and Dore' Mailing List, by Len Wanger
Fooling Around, by Eric Haines
Beware of VIDEA! by W. Purgathofer, E. Groeller, M. Feda
Still More on Optical Ray Tracing, by Dan Reiley
Raytracing and 3D Studio, by Michael Adams and Brian Hoffman
Testing SIPP versus Raytraces under DOS, by Alexander Enzmann

RTNv8n2: May 16, 1995

Introduction
Ray Tracing Roundup
Scanline vs. Ray Tracing, by Loren Carpenter and Sam Richards
Pyramid Clipping, by Erik Reinhard and Erik Jansen
Copyrighting Raytraced Images, by J Edward Bell, Benton Holzwarth, and Keith
Octrees and Whatnot, by Steve Worley and Eric Haines
Learning Radiance, by Kevin Matthews
Radiance vs. Pov, by "Cloister Bell"
Overlapping Refractors, by Steve Worley and Eric Haines
Raytracing Particle Systems, by Jos Stam
Answers/References on Cone Tracing, by Brent Baker
Dumb Radiosity Question, by Steve Worley and Eric Haines
Good Book on 3d Animation, by Scott McCaskill
Animation Books, by Dave DeBry
Fast Algorithms for 3D Graphics, by Glaeser: Any Good? by Brian Hook
Order of Rendering and Fast Texturing, by Bruno Levy, Dan Piponi, and Bernie Roehl
FREE E-Mag on VR, Computer Graphics, et al: Issue 2, by David Lewis
Color Quantization Bibliography, by Ian Ashdown

RTNv8n1: January 23, 1995

Introduction
People
Fetishes and Perversions, by Doug Andersen
Ray Tracing Roundup
New Web Sites of Note, by Eric Haines
MGF: Materials and Geometry Format, by Greg Ward
Blue Moon Rendering Tools RenderMan Implementation, by Larry Gritz
RenderMan Implementation Paper On-Line, by Philipp Slusallek
TGA BBS CD ROM review, by Eric Haines
Review of Syndesis Avalon CDROM, by Keith Rule
SIRDS/SIS/stereograms/Holusions/whatever, by Eric Haines
Two Books on Stereograms, by Eric Haines
Siggraph Report: The Exhibits, by Techs Avery
Scanline Rendering Previewer, by Eric Haines due to Chris Cason
Raysmith, by Eduardo Bustillo Iceta
Terminology Survey Results, by Peter Shirley
Radiosity Online: A Bibliography, by Ian Ashdown
Jevans' Temporal Coherence for Ray Tracing, by Eric Haines
Reviews of _Encyclopedia of Graphics File Formats_, from Steve Lamont, John Grieggs, Tom Lane, Brian Erwin, and Andy Key
SDSC Image Tools library, by Matt Hughes
LUG Library v1.0, by Raul Rivero

RTNv7n5: October 13, 1994

Introduction
New People
Ray Tracing Roundup
Recent Ray Tracing Papers
Rumor Mill
AERO Animation/Simulation System version 1.5.1, by Thomas Braeunl
A Brief Review of [an old] AERO, by Dave Negro
Photon Tracing, by Chris Thornborrow and Greg Ward
Faster Than POV-RAY 2.1, by Dieter Bayer
Z Buffer Based Rendering Program, by Raghu Karinthi
Gossamer, a Free Macintosh VR/3D Renderer, by Jon Blossom
Antialiasing Issues, by Arijan Siska
Microcosm, by Abe Megahed of Cosmic Software
Fisheye Lens Distortion, by Greg Ward
Optical Ray Tracers
Correcting Normal Direction, by Gavin Bell
Graphics Gems IV Table of Contents, by Paul Heckbert
Beyond Graphics Gems, by Paul Heckbert
Radiosity vs. Ray Tracing, by Rico Tsang
ACM SIGGRAPH Online Bibliography Updated, by Frank Kappe
How to be Notified of New POV Releases
PoVSB Windows-based Modeler v0.85, by Jeff Hauswirth
Porting Rayshade, PBM, etc from Unix to DOS, by Mike Castle
REYES & Patents, William C. Archibald
Going from AutoCAD and 3DS into Ray Tracing, by Sean Ross
Computer Lego Modeling, by Paul Gyugyi
Rowe's Ray Tracing World BBS, by Harry Rowe
On Using BSP trees, by Benton Jackson
Books about Commercial Renderers, by Don Lewis, Jimbo and Yury German

RTNv7n4: July 14, 1994

Introduction and Announcement
Call For Participation: POV Ray Tracing CD ROM, by Christopher Cason
Tracers and Tracings #1, by Tom Hoover
Review of Tracers and Tracings CD ROM, by Eric Haines
Ray Tracer Comparison, by Amanda L. Osborne
Blob Sculptor, by Alfonso Hermida
Book Announcements, and Modeler vs. Scripting Language, by Mitch Waite
A Quick Writeup of Ray Tracing for the Macintosh CD, from notes by Eduard Schwan
Ray Tracing Roundup
POV-Help, by Chris Cason
Lenticular 3D, by Keith Rule
POV Official News, Issue #1, POV Team
A Quick Explanation of Radiosity Computation vs. Output, by Steve Hollasch
A Grand Unified Modeller (GUM), by Lex van der Sluijs
New (at least to me) Bulletin Boards, collected by Eric Haines
GemCAD Review, by Greg Prior
A Summary of the Reyes Algorithm, by Steve Demlow
Version 1.7 of Polyray Available, by Alexander Enzmann
Use of External Program Calling for Polyray, by Alexander Enzmann
POV-Ray Legal Stipulations Correction, by Dan Farmer
3D Graphics Book List, by Brian Hook

RTNv7n3: July 6, 1994

Introduction
Ray Tracing Roundtable at SIGGRAPH '94, by Eric Haines
Books at SIGGRAPH '94, by Eric Haines
Radiosity: A Programmer's Perspective, by Ian Ashdown
Computational Geometry in C, by Joseph O'Rourke
Simple Databases Available For Rendering (Global Illumination), by Peter Shirley
Radiance Version 2.4 Available, by Greg Ward
Faster Ray-Torus Intersection, by Eric Haines
RAT PACK: Free Ray Tracing Research Software, by Tom Wilson
Light Beams Tricks, by Chris Thornborrow
On-Line Ray Tracing Bibliography, by Ian Grimstead
Polynomials, by Han-Wen Nienhuys
Shadow Caching Observation, by Han-Wen Nienhuys
Small Comment on GGems III bsp.c, by Han-Wen Nienhuys
Fogsources, by Han-Wen Nienhuys
The Rayce Ray Tracer, by Han-Wen Nienhuys
Ray Tracing Roundup
A Storage Trick for 3D Polygons, by Eric Haines
Illumination-Related Abstracts from the Proceedings of Graphics Interface '93
Design and Aims of the YART Graphics Kernel, by Ekkehard 'Ekki' Beier
Distribution Ray Tracing, by Marc Levoy
Ray Tracing, Antialiasing, and What To Do Instead, Steven Demlow
Yet Another Illumination Ph.D., by George Drettakis

RTNv7n2: February 2.01, 1994

Introduction
Ray Tracing Roundup
A Note on SPD Platform/Compiler Results (SPARC II), by David Hook
OORT - Object Oriented Ray Tracer, by Nicholas Wilt [and Eric Haines]
Partial Evaluation Applied to Ray Tracing, by P.H. Andersen
Comparison of Ray Traversal Methods, by Erik Jansen
Sphere Tessellation//Gamma Correction, by Olin Lathrop
Computational Geometry On-Line Bibliography, by Bill Jones
Summary of Advanced Rendering Papers from Eurographics '93, by Erik Jansen
RAT, Another Ray Tracer, by Tom Wilson
Fast Raytracing via SEADS, by John Chapman and Wilfrid Lefer
Parallel Ray Tracing Schemes, by Rainer Menes
Notes on Parallel Ray Tracing, by Hsiu Lin and Sam Uselton
Parallel Texturing, by Jon Leech and Brian Corrie
Mapping Texture on a Sphere, by Ron Capelli
Computational Geometry in C, by Joseph O'Rourke
Programming for Graphics Files in C and C++, by John R Levine
Point in Polygon, the Quick Answer, by Wm. Randolph Franklin and Eric Haines
Elib and NetNews Information, by Eric Haines
CFP: 5th Eurographics Workshop on Rendering, by Georgios Sakas
CFP: 5th EG workshop on Animation & Simulation, by Gerard Hegron
Morphology Digest, by Henk Heijmans
Position of the Sun, by Joe Cychosz

RTNv7n1: February 2, 1994

Introduction
Quick Book Reviews, by Eric Haines
Ray Tracing Roundup
3D Artist Magazine Information, by Tim Riley
Updated Graphics CD-ROM from Knowledge Media, by Paul A. Benson
The Desert Isle List, by Amanda Osborne
Raytrace Utilities List for DOS (and Windows), by Amanda Osborne
Brief Reviews of a Bunch of Useful PC Stuff, by Tim Lister
Tree and Plant Image Generation, by Phil Drinkwater and Jason Weber
POV-Ray 2.0 Released, by Dave Buck
JPEG Texture Maps, by Petri Nordlund
ArchiCAD Model Translator, and other notes, by Paul D. Bourke
New Radiance Version Available, by Greg Ward
Previewer Program for Radiance, by Greg Ward
IRIT Solid Modeller Version 4.0, by Gershon Elber
Object-Oriented Graphics: GOOD 0.50, by Ekkehard Beier
GFX News, by Eric Hsiao
New Wavefront Listserv, by George H. Otto
Optimized POV 2.0 version, by Peter K. Campbell
Errata for "Adventures in Ray Tracing", by Alfonso Hermida

RTNv6n3: September 28, 1993

Introduction
New People
Ray Tracing Roundup
Free Ray Tracer Summary, compiled by Eric Haines
Ray Tracer Races, Round 2, by Eric Haines
An Enhanced Standard Procedural Databases Package, by Eric Haines
Shadows from Refractive Objects, by Steven Collins
Shadows Through Transmitters, by Eric Haines, Greg Ward, Alexander Enzmann, Stephen Coy, and David Hook
Faster Bounding Volume Hierarchies, by Brian Smits and Eric Haines
Simple Sun Position Program, by James Ashton
Sphere and Cylinder/Cone/Disc/Annulus Definition, by Eric Haines
Ray Tracing Roundup
Simple Sphere Tessellation, by Mike Castle
Syndesis CD-ROM Review, by Eric Haines
Ray Tracing Related Abstracts from the Proceedings of Graphics Interface '93
Ray Tracing Papers in the First Bilkent Computer Graphics Conference, ATARV-93, Ankara, Turkey, July 1993
Fourth Eurographics Workshop on Rendering, Paris, France June 14-16, by Francois Sillion
Gamma Correction Frequently Asked Questions, by Graeme Gill
3D Studio Rendering, by Chris Williams
Ray-Bezier Patch Intersection, by Chuck McKinley, Max Froumentin
Turbulence and Noise, by Ken Perlin
Ray Tracing Research Ideas, by Klaus Lisberg Kristensen & Christian Gautier
POV-Ray Utilities, by Dan Farmer
SPD Platform/Compiler Results, by David Hook

RTNv6n2: July 1, 1993

Introduction
New People
Ray Tracer Races, Round 2, by Eric Haines
Simple, Fast Triangle Intersection, part II, by John Spackman
Review: _Photorealism and Ray Tracing in C_ (and others), by Eric Haines
Comments on Various Ray Tracing Speedups, by Andrew Woo (awoo@alias.com)
Errata to _Photorealism and Ray Tracing in C_, compiled by Eric Haines
InterChange Plus Model/Texture Data CD-ROM, by John Foust
Ray Tracing Roundup

========Net News Cullings========

Re: Intersection Between a Line and a Polygon (UNDECIDABLE??), by Allen B
Obfuscated Postscript Ray Tracer, by Takashi Hayakawa

RTNv6n1: January 27, 1993

Introduction
New People, New Places, etc
An Easily Implemented Ray Tracing Speedup, by Steve Worley
Color Storage, by Greg Ward
Bounding Areas for Ray/Polygon Intersection, by Steve Worley and Eric Haines
Simple, Fast Triangle Intersection, by Chris Green and Steve Worley
Ray Tracing Roundup
Spectrum Overview, edited by Nick Fotis
Comments on the Glazing Trick, by Eric Haines

========Net News Cullings========

Announcing the ACM SIGGRAPH Online Bibliography Project, by Stephen Spencer
A Brief History of Blobby Modeling, by Paul Heckbert
Cool Raytracing Ideas, Karen Paik
Optical Effects and Accuracy, by Sam Uselton
Map Projections Reference Book, by Mike Goss
A Brief Review of Playmation, by Chris Williams
PV3D Quick Review, by David Anjo
Bounding Volumes (Sphere vs. Box), by Tom Wilson
Raytracing Swept Objects, by Mark Podlipec
Ray Transformation, by Kendall Bennett

RTNv5n3: September 2, 1992

Introduction
Intersection Between a Line and a Polygon (UNDECIDABLE??), by Dave Baraff, Tom Duff
Fastest Point in Polygon Test, by Aladdin Nassar, Philip Walden, Eric Haines, Tom Dickens, Ron Capelli, Sundar Narasimhan, Christopher Jam, and (last but not least) Stuart MacMartin
Polygon Intersection via Barycentric Coordinates, by Peter Shirley
Many-Sided Polygon Intersection, by Eric Haines, Benjamin Zhu
Code for Point in Polygon Intersectors, by Eric Haines

RTNv5n2: August 26, 1992

Introduction - SIGGRAPH roundtable, etc
New People, New Addresses, etc
BSP Traversal Errata, by Kelvin Sung
The Art of Noise, by Steve Worley
Ray Tracing Roundup, by Eric Haines
Graphics Gems III Residency Mask errata, by Joe Cychosz
Any Future for Efficiency Research?, by Eric Haines
NuGrid Update, by Mike Gigante

========Net News Cullings========

Spline Patch Ray Intersection Routines, by Sean Graves
Xdart, from Mark Spychalla
4D Space Viewing Software, by Steve Hollasch
BYU Modelling and Visualization Package - Free Demo, by Stacey D. Son
New Radiosity Program Available, by Guy Moreillon
Optics Lab Information, by Anthony Siegman
Ray Tracing (or Casting) Applications, by Tom Wilson
Goofy (?) Idea, Gary McTaggart
Constant Time Ray Tracing, by Tom Wilson, Eric Haines, Brian Corrie, and Masataka Ohta
VLSI for Ray Tracing, by Kenneth Cameron, George Kyriazis, Peter De Vijt, Jon Leech, Sam Uselton, Thierry Priol, and "Dega Dude"
The Moon Revisited, by Tom Duff
Soft Shadow Ideas, compiled by Derek Woolverton
Book Announcement: Multiprocessor Methods for Computer Graphics Rendering, by Scott Whitman

RTNv5n1: July 10, 1992

Introduction - SIGGRAPH roundtable, etc
New People, New Addresses, etc
Texturing Parameterization, by Haakan "Zap" Andersson
NuGrid results, by Mike Gigante
Recursive Ray Traversal, by Erik Jansen and Wim de Leeuw, Response by Kelvin Sung
Ideal Grid/Object Densities, by Dan Gehlhaar, Marc Andreessen
BVH Traversal Results, by Nicholas Wilt
Ray Tracing Roundup, by Eric Haines
Mail Based 3D File Server, by Bob Lindabury
Imagine That, by Steve Worley
Correct Roots for Torus Intersection, by Haakan "Zap" Andersson
Information on Taos Parallel Processor, by Paul Wain
The Glazing Trick, by Haakan "Zap" Andersson
Bug in Ray-Convex Polyhedron Intersector in Graphics Gems II, Eric Haines

RTNv4n1: March 1, 1990

Introduction
New People, Address Changes, etc
Ray Tracing Abstract Collection, by Tom Wilson
Report on Lausanne Hardware Workshop, by Erik Jansen
New Version of SPD Now Available, by Eric Haines
Teapot Timings, by John Spackman
The Very First Point in Polygon Publication, by Chris Schoeneman
The Acne Problem, by Christophe Schlick
Shirley Thesis Available via Anonymous FTP, by Pete Shirley
Some Thoughts On Anti-aliasing, by Zap Anderssen, Eric Haines
New VORT Release, and the VORT Chess Set, by Eric H. Echnida, David Hook
Best (or at least Better) of RT News, by Tom Wilson
At Long Last, Rayshade v4.0 is Available for Beta-testing, by Craig Kolb
Parallel Ray Tracer, by Kory Hamzeh, Mike Muuss, Richard Webb
Distributed DKB, by Jonas Yngvesson
Quadrangle Tessellation, by Christophe Schlick
New Release of Radiance Software & Bug Fixes, by Greg Ward
Radiance Timings on a Stardent, by Eric Ost
RTSYSTEM Fast Ray Tracer, by Patrick Aalto
DKBTrace Beta Available, by David Buck
"Computer Graphics" 2nd Edition Corrections, Software, etc by Brown Emailer
Papers which are currently available from the Net via anon. FTP, J. Kouhia

========Net News Cullings========

Ray-Cylinder Intersection Tutorial, by Mark VandeWettering
C++ Fractal and Ray Tracing Book, by Fractalman
Ray/Spline Intersection Reference, by Spencer Thomas
Superquadric Intersection, by Rick Speer, Michael B. Carter
Comments on Interval Arithmetic, by Mark VandeWettering, Don Mitchell
Platonic Solids, by Alan Paeth
Moon Problems, by Ken Musgrave, Pete Shirley
Ken gave another problem with rendering the moon:
Shadow Testing Simplification, by Tom Wilson
SIMD Parallel Ray Tracing, by George Kyriazis, Rick Speer
Rayscene Animator, by Jari K{hk|nen [sic]
SIPP 2.0 3d Rendering Package, by Jonas Yngvesson and Inge Wallin
3DDDA Comments, by John Spackman
Radiosity Implementation Available via FTP, by Sumant
Dirt, by Paul Crowley
Thomson Digital Images University Donation Program, by Michael Takayama
A Brief Summary of Ray Tracing Related Stuff, Angus Y. Montgomery

RTNv3n4: October 1, 1990

Introduction
New People, Address Changes, etc
Photorealism, and the color Pink (TM), from Andrew Glassner
DKBTrace v2.0 and Ray Tracing BBS Announcement, by David Buck, Aaron Collins
Article Summaries from Eurographics Workshop, by Pete Shirley
Convex Polyhedron Intersection via Kay & Kajiya, by Eric Haines
New Radiosity Bibliography Available, by Eric Haines
A Suggestion for Speeding Up Shadow Testing Using Voxels, by Andrew Pearce
Real3d, passed on by Juhana Kouhia, "Zap" Andersson
Utah Raster Toolkit Patch, by Spencer Thomas
NFF Shell Database, by Thierry Leconte
FTP list update and New Software, by Eric Haines, George Kyriazis

========Net News Cullings========

Humorous Anecdotes, by J. Eric Townsend, Greg Richter, Michael McCool, Eric Haines
Graphics Interface '91 CFP
Parametric Surface Reference, by Spencer Thomas
Solid Light Sources Reference, by Steve Hollasch, Philip Schneider
Graphics Gems Source Code Available, by Andrew Glassner, David Hook
Graphics Gems Volume 2 CFP, by Sari Kalin
Foley, Van Dam, Feiner and Hughes "Computer Graphics" Bug Reports, by Steve Feiner
Radiosity via Ray Tracing, by Pete Shirley
Algorithm Order Discussion, by Masataka Ohta, Pete Shirley
Point in Polygon, One More Time..., by Mark Vandewettering, Eric Haines, Edward John Kalenda, Richard Parent, Sam Uselton, "Zap" Andersson, and Bruce Holloway
Quadrant Counting Polygon In/Out Testing, by Craig Kolb, Ken McElvain
Computer Graphics Journals, by Juhana Kouhia

RTNv3n3: July 13, 1990

Introduction
Ray Tracing Roundtable Announcement
New People, Address Changes, etc
Jarke van Wijk Thesis Availability, by Erik Jansen
New Name For "Distributed Ray Tracing", by Paul Heckbert et al
NFF Files from Thierry Leconte
RADIANCE Software Available, by Greg Ward
Rayshade Updates & SPD Bug, by Craig Kolb
New Version of Vort Ray Tracer, by David Hook
Graphics Interface '90, by Eric Haines
Real3d Review, Haakan "ZAP" Andersson
Bits From a Letter by David Jevans
On Antialiasing, & Light and Such, by Haakan "ZAP" Andersson

========Net News Cullings========

Summary: Uniform Random Distribution of Points on Sphere's Surface, Marshall Cline
Ray Tracing & Radiosity, by Frank Vance, Mark VandeWettering
Ray-Tracing the Torus, by Prem Subrahmanyam, Bob Webber
Need Help on Superquadrics, by Wayne McCormick, Robert Skinner
Ray Tracing Penumbral Shadows, Prem Subrahmanyam
Ray with Bicubic Patch Intersection Problem, Wayne Knapp, John Peterson, Lawrence Kesteloot, Mark VandeWettering, Thomas Williams
Rendering Intersecting Glass Spheres, by John Cristy, Craig Kolb
DKBPC Raytracer, by Tom Friedel
New release of IRIT solid modeller, by Gershon Elber
Easier Use of Ray Tracers, by Philip Colmer, Mark VandeWettering, Jack Ritter
Raytracer Glass, by F. Ken Musgrave, Michael A. Kelly
Ray Intersection with Grid, by Alasdair Donald Robert McIntyre, Rick Speer
Database for DBW-Render, by Prem Subrahmanyam

RTNv3n2: March 20, 1990

Introduction
New People, Address Changes, etc
FTP Site List, by Eric Haines
RayShade Posting and Patches and Whatnot, by Craig Kolb
Common Rendering Language, by Eric Haines
Avoiding Re-Intersection Testing, by Eric Haines
Torus Equation Correction, by Pat Hanrahan
"Introduction to Ray Tracing" Shading Model Errata, by Kathy Kershaw
Comments on Last Issue, by Mark VandeWettering
An Improvement to Goldsmith/Salmon, by Jeff Goldsmith
Fiddling with the Normal Vector, by H. 'ZAP' Anderson
A Note on Texture Sampling, by Eric Haines
Unofficial MTV Patches, by Eric Haines

========Net News Cullings========

OFF Databases, by Randi Rost
VM_pRAY is now available, by Didier Badouel
Superquadrics, by Prem Subrahmanyam, Patrick Flynn, Ron Daniel, and Mark VandeWettering
Graphics Textbook Recommendations, by Paul Heckbert, Mark VandeWettering, and Kent Paul Dolan
Where To Find U.S. Map Data, by Dru Nelson
References for Rendering Height Fields, Mark VandeWettering
RayShade 3.0 Released on comp.sources.unix, by Craig Kolb
Bibliography of Texture Mapping & Image Warping, by Paul Heckbert
More Texturing Functions, by Jon Buller
Ray/Cylinder Intersection, by Mark VandeWettering
C Code for Intersecting Quadrics, by Prem Subrahmanyam
Parallel Ray Tracing on IRISs, collected by Doug Turner

RTNv3n1: January 2, 1990

Introduction
New People
Archive Site for Ray Tracing News, by Kory Hamzeh
Ks + T > 1, by Craig Kolb and Eric Haines
Quartic Roots, and "Intro to RT" Errata, by Larry Gritz and Eric Haines
More on Quartics, by Larry Spence
Question: Kay and Kajiya Slabs for Arbitrary Quadrics? by Thomas C. Palmer
Ambient Term, by Pierre Poulin
Book Reviews on Hierarchical Data Structures of Hanan Samet, by A. T. Campbell, III
Comparison of Kolb, Haines, and MTV Ray Tracers, Part I, by Eric Haines
Raytracer Performance of MTV, by Steve Lamont
BRL-CAD Ray Tracer Timings, by Gavin Bell
BRL-CAD Benchmarking and Parallelism, by Mike Muuss

========Net News Cullings========

Rayshade Patches Available, by Craig Kolb
Research and Timings from IRISA, by Didier Badouel
Concerning Smart Pixels, by John S. Watson
Input Files for DBW Render, by Tad Guy
Intersection with Rotated Cubic Curve Reference, by Richard Bartels
Needed: Quartz surface characteristics, by Mike Macgirvin
Solution to Smallest Sphere Enclosing a Set of Points, by Tom Shermer
True Integration of Linear/Area Lights, by Kevin Picott

RTNews9 v2n8: October 27, 1989

Introduction
Tracing Tricks, edited by Eric Haines Ambient Light Efficiency Schemes Bounding Volume Hierarchy Octree Bounding Box Intersection Spline Surface Intersection Acknowledgements Bibliography

RTNews8 v2n7: October 13, 1989

Introduction
New People and Address Changes
Solid Surface Modeler Information, by Eric Haines
Minimum Bounding Sphere Program, by Marshall Levine
Parallelism & Modeler Info Request, by Brian Corrie

========Net News Cullings========

Ray Tracer Available, by Craig Kolb
Source from Roy Hall's Book, by Tim O'Connor
More on Texture Mapping by Spatial Position, by Paul Lalonde
Procedural Bump-mapping Query, by Prem Subrahmanyam
Ray Tracer Performance on Machines, by Gavin A. Bell, Steve Lamont
Projective Mapping Explanation, by Ken "Turk" Turkowski
Intersection Calculation Problem Request, Jari Toivanen
Mathematical Elements for Computer Graphics - Call for Errata, by David Rogers
Raytracing on NCUBE Request, by Ping Kang Hsiung
Intersection Between a Line and a Polygon (UNDECIDABLE??), by Dave Baraff, Tom Duff

RTNews8 v2n6: September 20, 1989

Introduction
New People and Address Changes
Q&A on Radiosity Using Ray Tracing, by Mark VandeWettering and John Wallace
Dark Bulbs, by Eric Haines
MTV Ray Tracer Update and Bugfix, by Mark VandeWettering
DBW Ray Tracer Description

========Net News Cullings========

Wanted: Easy Ray/Torus Intersection, by Jochen Schwarze
Polygon to Patch NFF Filter, by Didier Badouel
Texture Mapping Resources, by Eric Haines, Prem Subrahmanyam, Ranjit Bhatnagar, and Jack Ritter

RTNews7 v2n5: August 29, 1989

Introduction
A SIGGRAPH Report, by Eric Haines
Ray Tracing Poll, from the roundtable discussion
_An Introduction to Ray Tracing_, Announcement and Errata
_Graphics Gems_ Call for Contributions, by Andrew Glassner
New People and Address Changes
Bugs in MTV's Ray Tracer, by Eric Haines
Bug in SPD, from Pete Segal
Solid Textures Tidbit, by Roman Kuchkuda
Sundry Comments, by Jeff Goldsmith
Texture Mapping Question, by Susan Spach

========Net News Cullings========

Ray Traced Image Files, Prem Subramanyan
Image Collection, by Paul Raveling
MTV-Raytracer on ATARI ST - precision error report, by Dan Riley
Question on Ray Tracing Bicubic Parametric Patches, by Robert Minsk

RTNews7 v2n4: June 21, 1989

Introduction
Hardcopy News
New (and Used?) People
Minimum Bounding Sphere, continued, by Jack Ritter
Comments on "A Review of Multi-Computer Ray-Tracing", by Thierry Priol
Query: Dataflow architectures and Ray Tracing, by George Kyriazis

========Net News Cullings========

Re: Pixar's noise function, by Jon Buller
Re: DBW_render for SUN 3 ? by Tad Guy
Re: Steel Colors, by Eugene Miya
Dirty Little Tricks, by Jack Ritter
Obfuscated Ray Tracer, by George Kyriazis
Contents of FTP archives, skinner.cs.uoregon.edu, by Mark VandeWettering

RTNews7 v2n3: May 12, 1989

Introduction
New People, by Carl Bass, Paul Wanuga
QRT Ray Tracer (and five other Amiga Ray Tracers), by Steve Koren
New Version of MTV Ray Tracer, by Mark VandeWettering
Re: Ray Traced Bounding Spheres, by Earl Culham
Noise and Turbulence Function Code, Pascal and C, by Jon Buller, William Dirks

RTNews6 v2n2: February 20, 1989

Introduction, by Eric Haines
New Subscribers, by Turner Whitted, Mike Muuss
The BRL CAD Package, by Mike Muuss
New Book: _Illumination and Color in Computer Generated Imagery_, Roy Hall (Eric Haines)
Uniform Distribution of Sample Points on a Surface
Depth of Field Problem, by Marinko Laban
Query on Frequency Dependent Reflectance, by Mark Reichert
"Best of comp.graphics" ftp Site, by Raymond Brand
Notes on Frequency Dependent Refraction
Sound Tracing
Laser Speckle

RTNews6 v2n1: January 6, 1989

Introduction, by Eric Haines
New Members, by David Jevans, Subrata Dasgupta, Darwin Thielman, Steven Stadnicki, Mark Reichert
Multiprocessor Visualization of Parametric Surfaces, by Markku Tamminen, comments from many others
Miscellany, by K.R.Subramanian, David F. Rogers, Steven Stadnicki, Joe Smith, Mark Reichert, Tracey Bernath
Supersampling Discussion, by David Jevans, Alan Paeth, Andrew Woo, Loren Carpenter
Distributed Ray Tracer Available, by George Kyriazis
Ray Tracing Program for 3b1, by Sid Grange
Map Archive, by Gary L. Crum
Index of Back Issues, by Eric Haines

RTNews5 v1n11: November 4, 1988

Intro
New People
Ray/Triangle Intersection with Barycentric Coordinates, by Rod Bogart, Jeff Arenberg
Transforming normals, by David F. Rogers
2D box-test, by Jack van Wijk
Re: Neutral File Format, by Jeff Goldsmith
RT and Applications, by Cary Scofield
Re: Goldsmith and Eyes, by K.R.Subramanian (subramn@cs.utexas.edu)
Wood Textures, by Rod Bogart
Shadows, Mirrors, and "Virtual Lighting", by Steve Stadnicki
Re: Basics of Raytracing, by David Jevans
Re: What is Renderman Standard?, by Steve Upstill
Free On-Line Computer Graphics References
Latest Mailing List, Short Form, by Eric Haines

RTNews5 v1n10: October 3, 1988

Intro
New Addresses and People
Bitmap Stuff, by Jeff Goldsmith
More Comments on Kay/Kajiya
Questions and Answers (for want of a better name)
More on MTV's Public Domain Ray Tracer (features, bug fixes, etc)
Neutral File Format (NFF), by Eric Haines

RTNews4 v1n9: September 11, 1988

Intro
Capsule Autobiographies, by more new people
The Continuing Saga of MTV's Raytracer, by Mark VandeWettering
Public Domain Ray Tracer Q & A, by Mark VandeWettering
Public Domain Ray Tracer Utilities, by Tom Vijlbrief
Sorting Unnecessary on Shadow Rays for Kay/Kajiya? by Eric Haines and Mark VandeWettering
Summary of Replies to Vectorizing Ray-Object Intersection Query, by Tom Palmer
The Ray Tracer I Wrote, by George Kyriazis
New Bitmaps Library Available, Jef Poskanzer

RTNews4 v1n8: September 5, 1988

Intro
Capsule Biographies
SIGGRAPH '88 RT Roundtable Summary, by Paul Strauss and Jeff Goldsmith
Commercial Ray Tracing Software and SIGGRAPH, by Eric Haines and others
A Letter, by Jeff Goldsmith
Best of USENET
Postscript Ray Tracer, John Hartman and Paul Heckbert

RTNews3 v1n7: June 20, 1988

Introduction
New People and Addresses
Non-article on RenderMan and Dore', by Eric Haines
Ray Tracing Bibliography Update, by Paul Heckbert and Eric Haines
Commercial Ray Tracing Software, by Eric Haines
Benchmarks, by Jeff Goldsmith

RTNews3 v1n6: April 6, 1988

RT News, Hardcopy Form, by Andrew Glassner
New People
Question for the Day, by Rod Bogart
Re: Linear-time Voxel Walking for BSP, by Erik Jansen
Some Thoughts on the Theory of RT Efficiency, by Jim Arvo
Automatic Creation of Object Hierarchies for Ray Tracing, by Eric Haines
Best of USENET

RTNews2 v1n5: March 26, 1988

Intro, Eric Haines
Mailing list changes and additions: Kuchkuda, Lorig, Rekola
More on shadow testing, efficiency, etc., Jeff Goldsmith
More comments on tight fitting octrees for quadrics, Jeff Goldsmith
LINEAR-TIME VOXEL WALKING FOR OCTREES, Jim Arvo
Efficiency Tricks, Eric Haines
A Rendering Trick and a Puzzle, Eric Haines
PECG correction, David Rogers

RTNews2 v1n4: March 8, 1988

Surface acne, by Eric Haines
Goldsmith/Salmon hierarchy building
Efficiency tricks followup, by Ohta, Goldsmith, Haines

========Net News Cullings========

Spatial Subdivision, by Ruud Waij, Paul Heckbert, Andrew Glassner

RTNews2 v1n3: March 1, 1988

Mailing list updates
Another Dore' article
Teapot in a football stadium, by Glassner, Arvo, Haines
Efficiency Tricks, by Jeff Goldsmith
More book recommendations, by Jeff Goldsmith
Bug for the day, by Eric Haines
A pet peeve, by Jeff Goldsmith

RTNews2 v1n2: Februrary 15, 1988

Dore'

RTNews1 v1n1: January 15, 1988

Introduction
Subdivision and CSG, by Erik Jansen
Spline surface rendering, and what's wrong with octrees, by Eric Haines
Top ten hit parade of computer graphics books, by Eric Haines
Normal vectors and octree relies, by Olin Lathrop and Eric Haines
Subspaces and simulated annealing, by Jim Arvo

RTNews1 the start: Sometime after Siggraph '87

Introduction
SPD and NETLIB, by Eric Haines
Spline Surfaces, by John Peterson, Haines, Goldsmith, Kay
Abnormal Normals, by Eric Haines

Eric Haines / erich@eye.com