Rich Geldreich

Things learned while running your own self-funded startup

Here's a brain dump of the things we've learned while running our business and shipping our first product ( Basis ). My experience at Valv...

Tech company patterns

First off, I'm not finished with this blog post. Don't take it too seriously. This is not about any one company . Some aren't even from me....

Lessons learned while developing Age of Empires 1 Definitive Edition

In late 2016 I began helping Forgotten Empires on Age 1 DE , a UWP app shipping in the Windows Store on Feb 20th. I only helped occasionall...

CPNG, a backwards compatible fork of PNG

Age of Empires Definitive Edition's pathing and movement

Typical Age DE forum post: The pathfinding in the game is terrible. First off, Age of Empires Definitive Edition is a remaster of...

Near-lossless image formats using ultra-fast LZ codecs

I think simple ultra-high speed lossy (or near-lossless) image codecs, built from the new generation of fast LZ codecs, are going to become ...

Faster LZ is not the answer to 150-250 GB video game downloads

When the JPEG folks were working on image compression, they didn't create a better or faster LZ. Instead they developed new approaches. I se...

The Truth on OpenGL Driver Quality

The driver landscape is something that any practicing GL dev must face unless you like having only a fraction of potential customers able t...

Lz_xor

If LZ compression is compilation , what other instructions are useful to add? I've spent the last several years, off and on, trying to figur...