Convex hulls and why they matter for collisionThe problem: collision is everywhere in games Every game has to answer one question over and over: did this thing touch that thing? Did the bullet hit the enemy? Did the player land on the platform? DMay 8, 2026·8 min read
Decals in games are not talked about enoughWhat a decal is A decal is a flat texture stuck onto an existing 3D surface. It doesn't add new geometry. It just paints something on top of what's already there. Bullet hole on a concrete wall? DecalMay 3, 2026·5 min read
2D Rendering Concepts: A Reference1. The Core Insight: 2D Is 3D With a Flat Camera A modern 2D game is rendered by a 3D engine. Every sprite is a flat rectangle (a quad) in 3D space. Every tile is a quad. Every UI element is a quad. TMay 3, 2026·15 min read
2D Asset Primitives: A Reference1. Sprite A 2D image with transparency, drawn in the world with a transform. A sprite is the atomic unit of 2D games. The image data is just a PNG. What makes it a sprite is how it's used: positioned May 3, 2026·16 min read
Skinning and Why Smooth Weights MatterIntroduction You know what a 3D mesh is. You know what a skeleton is. There is a thing in the middle that connects them. That thing is skinning. And it makes or breaks how a character looks when it moMay 3, 2026·2 min read
How spatial audio works in gamesIntroduction A while ago I started wondering how games make sound feel like it's coming from a real place. Like in Counter-Strike when you can hear someone walking through a room two corridors over, oApr 29, 2026·8 min read
A visual guide to voxelsWhat's a voxel? A voxel is to 3D what a pixel is to 2D. A pixel is a tiny square in a 2D image. A grid of pixels makes a picture. Your screen is a grid of pixels. Zoom into any photo and you see them.Apr 26, 2026·4 min read
