Greg Roelofs

Quick Index to Greg's Web Pages:

* Home Page and Brief Bio

* Early Life

* College Years at the University of Minnesota

* Vaguely Amusing College Stories

* Bachelorhood

* Grad School Years at the University of Chicago

* Doctoral Research at NASA Ames

* Philips Research in Silicon Valley

* AlphaWorld Multi-resolution Map (appears to have died the final death, alas)

* Introduction

* AlphaWorld Monorail

* About the Map (statistics)

* Complete version (very wide)

* News

* Frequently Asked Questions (FAQ)

* Top Level

* Quick Navigation

* Density Map (also animated version)

* VRML Model

* Other Maps (someday)

* Yahoo! Search

* Résumé (detailed version)

* Hobbies:

* 3D modeling [New!]

* 43487 galaxies from the 2-Micron All-Sky Survey

* ~1200 local galaxies (more accurate!)

* very simple geometric model

* vertically exaggerated model of a San Francisco hike

* aggregate traces of some LinkedIn rides in the South Bay

* one of many ski traces (no terrain or map)

* Linux, the OS for Real Stud Hombre Cybermuffins

* Stupendously Cool Linux Pictures

* Stupendously Cool Linux Penguins

* Still More Cool Linux Pictures

* Linux Virtual-Beer Logo Concept (ancient)

* The Future of Linux Panel Discussion, 14 July 1998

* Prepared Question #1

* Audience Q & A

* Phil Hughes Questions

* Prepared Question #2

* More Audience Q & A

* Door Prizes and Demos

* Linux User Group of Davis PNG Presentation, 7 March 2000

* Slide 1
* Slide 2
* Slide 3
* Slide 4
* Slide 5
* Slide 6
* Slide 7
* Slide 8
* Slide 9
* Slide 10
* Slide 11
* Slide 12

* OS/2 and Other Warped Concepts

* Spiffy Ray-traced OS/2 Pictures

* More Spiffy OS/2 Pictures and Games Previews

* OS/2 Background Pictures from David Barnes

* OS/2 BAUG DevSIG Tip o' the Month, February 1995

* Example: Multi-compiler Makefile

* Example: Using Predefined Macros

* Books, Both Good and Bad

* Amateur Photography

* Large, Multi-legged Creatures

* More Multi-legged Creatures

* Doom (cough)

* Writings

* Personal Life

* Wedding Pics (never fear, only two of them)

* Roelofs, Pennsylvania and Roelofs Gully, Michigan

* The Dark Side

* Programming and Other Hackery

* PNG (Portable Network Graphics) Home Page

* PNG Information:

* A Basic Introduction to PNG Features

* Current Status of PNG

* Status Snapshot of February 1999

* Status Snapshot of June 2000

* Frequently Asked Questions (FAQ)

* Configuring IIS 4.0 for PNG

* History of PNG

* News (and More History) of the PNG Development Group

* 1995
* 1996
* 1997
* 1998
* 1999
* 2000
* 2001
* 2002
* 2003
* 2004
* 2005
* 2006
* 2007
* 2008

* PNG Technical Documentation

* PNG Specification and Extensions:

* Joint W3C and ISO/IEC version

* PNG Extensions and Register of Public Chunks and Keywords

* Older versions:

* Version 1.2 (includes Gamma Tutorial and Color Tutorial)

* Version 1.1

* Version 1.0

[cover] * PNG: The Definitive Guide (O'Reilly book)

* Detailed table of contents

* Source code

* Errata list

* Random notes and timeline

* Complete text (GNU Free Documentation License)

* PNG-Supporting Applications:

* Applications with PNG support:

* Browsers

* Image Viewers

* Image Editors

* Image Converters

* 3D Applications

* Games / Entertainment

* Office / Business Applications

* Scientific / Graphing Applications

* Miscellaneous Applications

* PNG Support in VRML Browsers

* ImageTexture Examples on Opaque Materials:

* Palette-based Textures

* 8-bps Grayscale and RGB Textures

* 16-bps Grayscale and RGB Textures

* ImageTexture Examples on Partially Transparent Materials:

* Palette-based Textures

* 8-bps Grayscale and RGB Textures

* 16-bps Grayscale and RGB Textures

* Hardware with PNG Support

* PNG Programming Resources:

* PNG-supporting Libraries and Toolkits

* libpng home page

* PNG Source Code

* png2linuxlogo

* pngcheck

* pnggen

* pngmeta

* pngquant

* pnmtopng

* ptot (png2tiff)

* tiff2png

* PNG Support in Mozilla (old)

* Build Notes (older)

* PNG Images:

* Willem van Schaik's PNG Test Suite

* ...without broken PNGs

* PNG VRML Texture Suite in 2D

* Ray-traced PNG Interlacing Demo (also JPEG version)

* Miscellaneous Transparent PNGs using IMG Tags

* ...with a background image (fairly unreadable!)

* Miscellaneous Transparent PNGs using OBJECT Tags

* ...with a background image (fairly unreadable!)

* strict HTML 4.0 version

* Miscellaneous 32-bit RGBA PNGs

* Photographic PNGs with Alpha Channels:

* Icicles

* Redbrush flower (Ohia Lehua)

* Magnolia tree

* Horned Owl

* Browser Gamma-Correction Consistency Test

* Single-page Quick Test

* Unlabelled GIFs on HTML Colors ("control group") or CSS colors

* Unlabelled PNGs on HTML Colors or CSS colors

* Gamma-labelled PNGs (1/1.6) on HTML colors or CSS colors

* Gamma-labelled PNGs (1/2.2) on HTML colors or CSS colors

* sRGB-labelled PNGs on HTML colors or CSS colors

* ICC-profile-labelled PNGs (1/1.0) on HTML colors or CSS colors

* Browser Color-Correction Test

* Netscape Navigator / PNG bKGD Test

* Screenshots of Browsers and PNG Transparency, Gamma and Color Correction:

* Arena beta 3b for Linux (one of the first)

* CSCMail 1.7.8 for Linux (pretty good)

* Dillo 0.6.2 for Linux (pretty good)

* iCab 1.9 beta for Mac OS (also pretty good)

* Internet Explorer 5.0 for Mac OS (pretty good)

* Internet Explorer 7.0b1 for Windows (pretty good)

* Konqueror 3.0 for Linux (getting there but needs work)

* Mozilla 2000年04月14日 for Linux (at last!)

* also using random-dithered binary transparency

* NetPositive 2.2 for BeOS (pretty good)

* OmniWeb 3.1rc2 for Mac OS X Server (pretty good)

* Opera 6.0b1/TP1 for Windows and Linux (pretty good)

* Oregano 2 for RISC OS (pretty good)

* WebTV (getting there but needs work)

* Links to Other PNG Resources and Images

* MNG (Multiple-image Network Graphics) / JNG Home Page

* News and History of the MNG Developers

* 1996
* 1997
* 1998
* 1999
* 2000
* 2001
* 2002
* 2003
* 2004
* 2005
* 2006

* MNG Technical Documentation

* MNG Specification 1.0 - includes subsets:

* MNG-LC (low complexity)

* MNG-VLC (very low complexity)

* JNG (JPEG Network Graphics: JPEGs with PNG transparency)

* Applications with MNG Support:

* Browsers

* Image Viewers

* Image Editors

* Image Converters

* 3D Applications

* Games / Entertainment

* Office / Business Applications

* Scientific / Graphing Applications

* Miscellaneous Applications

* Hardware with MNG Support

* MNG-supporting Libraries and Toolkits

* MNG and JNG Images

* Links to Other MNG Resources

[Info-ZIP] * Info-ZIP Home Page

* News, History and Other Stuff

* Frequently Asked Questions (FAQ)

* License

* Zip

* UnZip

* Pocket UnZip

* WiZ

* zlib Home Page

* zlib Documentation

* Manual

* Technical Details

* Deflate Algorithm

* License

* Frequently Asked Questions (FAQ)

* XV Jumbo Patches

* NetPBM Alpha-Channel Hacking

* Collected Net (and Other) Humor:

* Roger Zelazny:

* The Agnostic's Prayer

* Travelling through Shadow

* Usenet:

* The Signs of Doom Interpreted (no, not the game...)

* Smiley Sex

* The Cave Newt Pledge

* Poetry:

* Physics Theoretical

* The Story of Mel, a Real Programmer

* Love Guppy

* My Buddy

* Dorothy Parker on Gun Control

* Bill Bixby Memorial Haiku

* The Fateful Journey of Montgomery Scott

* Songs:

* Unix Wizard

* The Programmer Song

* The Philosopher Song

* My Favourite Things...

* Star Trek Christmas Carols

* Gingrich the Newt

* Essays:

* Dave Barry: Cybermuffin

* How to "Fly" a Plane

This photograph is copyright © 1993 Dan Warsinger. Dan was an amazingly studly photographer, both technically and professionally; he was also a really nice guy. Highly recommended for anyone getting hitched in the Yosemite area. And no, Greg is not Weird Al.