Rendering 2D Shadows in iPhone Games with cocos2d: A Deep Dive into Depth Buffers and Accurate Shadow Rendering

Understanding the Issue with Displaying Texture Images on Devices: A Guide to Working Around Non-Power of Two Dimensions

Understanding Graphics Libraries for iPhone Development

Understanding Lag in iPhone Apps with OpenGL ES: Optimizing Performance and Creating a Smooth User Experience

Here is the complete code for a simple Android application that uses OpenGL ES and PVRTC texture compression:

Optimizing Depth Precision to Fix Black Pixels on 3D Models