Implementing glAlphaFunc in OpenGL ES2.0

In OpenGL ES 2.0 glAlphaFunc isn’t available, you have to implement it in a fragment shader. There isn’t a lot of reference out there for this (not that I could find anyway) so I thought I’d write this up.

It’s actually quite simple to implement …

Integrating Bullet Physics

Bullet is an open source collision and physics simulation library written by Erwin Coumans who I believe worked or maybe still does work at SCEA (Sony Computer Entertainment America). Bullet provides a C++ API to a very robust Collision, Rigid Body and Soft body simulation system. At its core Bullet …

Starting Out On The iPad

Why the iPad?

When the iPad was announced I decided it was time to take the plunge and develop a game for it. Although the iPhone is a powerful piece of hardware I just find the screen too limiting. Every game leaves you wishing you had transparent fingers. The iPad …

Subversion and Apple Filemerge Integrtaion

NOTE: This is an old article I wrote in January 2007, it’s still relevant today. It was originally posted on luckydonkey.com which I am in the process of retiring.

If you want visual diff’s while developing on OSX using subversion then this page has a good description …