Comments for Robert Kooima

Comment on About by steve smith

steve smith — Tue, 30 Mar 2010 18:41:55 +0000

Robert -

Good work on many fronts.

Have you made any more progress toward an open-source real-time dome rendering environment?

- Steve

Comment on About by Seedload

Seedload — Thu, 18 Mar 2010 20:56:49 +0000

Your Generalized Perspective Projection article is great. Thank you. I am writing an app for a handheld device and want to create the illusion that the screen is a glass pane into another world, using the orientation sensor to adjust the scene relative to the viewer. Kinda like looking into a little box. I was going to do this with a skew which isn’t quite right but probably would have done the trick. This is the much better answer. Glad I continued my search and found this. Thanks big time! I’ll let you know how it goes.

Comment on Generalized Perspective Projection by Seedload

Seedload — Thu, 18 Mar 2010 20:39:51 +0000

Wow, great article. I was looking for how to do this for a mobile device application, changing the perspective of the scene to match the information that I get from the orientation sensor. For reasons you explain above, a simple rotation doesn’t work. I was going to do a skew, but this is a much better answer. Thanks. Fantastic resource. Now, to make it work:)

Comment on How to Set the Near Clipping Distance to Zero by Ola

Ola — Tue, 09 Feb 2010 00:48:46 +0000

Actually, you need to watch out for geometry passing into the z=0 plane (not the view point), which is infinite, so I can see no way of avoiding this producing weirdness…

Comment on How to write IEEE doubles to a binary file in Haskell by Erik

Erik — Sun, 28 Jun 2009 20:11:19 +0000

There is also the package data-binary-ieee754 on hackage, which does exactly this (and more).

Comment on Generalized Perspective Projection by Robert Kooima » Blog Archive » Generalized Perspective Projection (revised)

Tue, 23 Jun 2009 20:44:22 +0000

[...] prepared a revised and updated print version of my previous post on Generalized Perspective Projection. Here’s the PDF. Category: Articles, OpenGL [...]

Comment on Generating Source Code Contour Images by Darren LeGrange

Darren LeGrange — Thu, 09 Apr 2009 20:04:11 +0000

Thank you very much Robert. I’ve been considering how to accomplish this very task and your instructions are spot-on. Saved me a bunch of work with an elegant output.

Comment on How to view crossed-eye stereo pairs by Robert Kooima » Blog Archive » Generalized Perspective Projection

Robert Kooima » Blog Archive » Generalized Perspective Projection — Thu, 28 Aug 2008 20:21:01 +0000

[...] About « How to view crossed-eye stereo pairs [...]

Comment on How to Set the Near Clipping Distance to Zero by ArcNebula devBlog » Blog Archive » How to Set the Near Clipping Distance to Zero

Fri, 25 Jul 2008 16:31:17 +0000

[...] discovered this article when looking for something else on the net. It has some detailed maths, quite a cool piece of [...]

Comment on All OpenGL Extension Specifications in one ZIP by mjc

mjc — Fri, 11 Jan 2008 02:53:18 +0000

It’s not a single-file archive, but there’s an easy way to get hold of the official extension registry.

If you build GLEW from source (http://glew.sourceforge.net)
using ‘make extensions’ the specs will be auto downloaded,
via wget. You can then find them in glew/auto/registry,
along with a few miscellaneous text and html files.

Even so, your all-in-one zip file is handy.