Kernel Development from Scratch

I’ve started a series of articles for the new Greek magazine: Linux Inside. The articles aim to introduce the reader to kernel development, by starting from scratch and building up a small working kernel.

The first issue of Linux Inside, which should be available by now, includes the first part of the series which covers setting up the development tools for compiling and running the kernel both on the real machine and in a simulator, bootstrapping with multiboot boot loaders, and text output by driving the VGA in text mode.

For obvious reasons the full source code supplementing each article could not fit in the pages of the magazine, only the most relevant snippets are included. So make sure to follow the URL at the start of the article to download the full source code and have it handy while you read. The source code for the first article can be found here.

So go grab a copy of the Linux Inside magazine and let me know what you think. Each article will also contain exercises for the readers, so have a go at them and send me your code! I’ll try to include it in the next issue.

Oh and of course each article will be released under a free license (I’m thinking either GNU FDL or CC BY-SA) when each issue goes out of circulation.

edit: Just made a website for the series.

Introductory OpenGL tutorials continued

Just a short notice, the second part of my “introduction to 3D graphics with OpenGL” series should be available as we speak. This time, we’ll perform the full set of transformations that we described while discussing the rendering pipeline in the previous issue. We’ll use the matrix stack to separate the model from the view parts of the modelview matrix, and render multiple objects properly. And finally we’re going to explain the mathematical model of shading and illumination, and we’ll apply lighting to our object in order to increase the realism of our simple 3D environment tremendously.

So, go and grab a copy of the november-december issue of the greek linux format magazine, and let me know what you think. As always I look forward to your comments, suggestions, corrections, etc.

By the way, due to popular demand, I will upload the first tutorial of the series in a couple of weeks, after the previous issue of linux format goes out of circulation.

Introductory OpenGL tutorials

I recently started writing a series of introductory tutorials about graphics programming with OpenGL, for the greek linux format magazine.

The articles are written for the complete begginer, who hasn’t had any previous exposure to graphics programming. However, familiarity with the C programming language is definitely required.

What I’m aiming for, is to thoroughly explain the underlying theory, in order to provide a stepping stone for someone who would like to eventually delve deeper into graphics algorithms, rather than just present raw examples for doing this and that with OpenGL.

In any case, the first article of the series will be published in the september-october issue of the greek linux format magazine, which should be available during the next few days. Any feedback, is greatly appreciated.

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