Programming - kometblog

Older posts from 2008

Newer posts from 2008

Collision Detection with Occlusion Queries Redux

Jul 23, 2008

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Tags: Algorithms, Collision detection, Game programming, OpenGL, Source code, Video games

Here we describe a method for checking collisions between arbitrary objects drawn by the GPU. The objects are not limited to any shape, complexity or orientation. The objects that are checked for collisions can be the same objects that are drawn on the screen. The algorithm is pixel perfect but without further refining is limited to 2D collisions.

Blog Experiment: More SQL and Text Matching

Apr 25, 2008

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Tags: Search algorithms, SQL

In Viewer2, there is a feature that allows fast text searches on huge databases with tens of thousands of filenames. Here’s how I did it.

Blog Experiment: Desaturating and resizing images

Apr 22, 2008

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Tags: Re-targeting, Resizing, SDL, Seam carving

Playstation 3 vs. Atari VCS

Mar 28, 2008

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Tags: Atari, Demoscene, Playstation 3, PS3, Video

More demoscene stuff: a very recent PS3 demo (a real-time animation for you not in the know) and a very recent Atari VCS demo. The Atari VCS (redubbed Atari 2600) was pretty much the first game console for the masses and it was released in 1977. The Playstation 3 was released in 2006.