Grafica Obscura

Curated by Paul Haeberli

Horiz Bar

Welcome to Grafica Obscura, my computer graphics notebook. This is a compilation of technical notes, pictures, essays and complete junk that I've accumulated over the years. For maximum enjoyment, check the viewing notes provided.

Contents

A Paper Folding Project
Here are step by step instructions on how to make a folded paper sculpture.
Japanese English Advertising Slogans
Beautiful and poetic word combinations from Japan.
A Gallery of Pictures
A collection of digital pictures. This includes photographic and synthetic images.
Synthetic Lighting for Photography
Modifying photographic lighting as a post process.
A Note on Shadows
A quote from Carlos Casteneda about shadows.
Dynadraw
A paint program that uses dynamics to filter mouse positions.
The SGI Typeface Collection
Here's a booklet showing various typefaces designed at SGI over the last few years.
Futurist Programming Overview
Background on the Futurist Programming movement. For open minds only.
A Multifocus Method for Controlling Depth of Field
This technical note describes a technique for combining several images to increase or control depth of field in photography.
Properties of Light
A note on the properties of various kinds of light. This describes lighting in terms of fall off, diffusion and wrap.
Image Merging
Creating an accurate panorama from a series of independent images is hard, but not impossible using a projective warp.
Image Interpolation and Extrapolation
Linear interpolation can be used to implement many image processing operations efficiently. Here we show how to control contrast, color saturation, and image sharpness.
Texture Mapping Applications
Many unusual uses for texture mapping are surveyed in this technical paper.
Image Production for Mosaic
Tools and hints for creating images for HTML documents.

Future Additions

Watch for more insane stuff coming in the future. In the mean time please have a look around.


This is a publication of GRAFICA Obscura.
paul@sgi.com