# FuryGPU — downloaded reference material

FuryGPU is a full-stack custom GPU built solo by **Dylan Barrie** (a games-industry
rendering engineer) over ~4 years, as his first-ever FPGA design. It is a real
plug-into-your-PC graphics card: custom SystemVerilog RTL on a Xilinx Zynq
UltraScale+ (Kria SoM), a custom PCB, custom Windows drivers, and a custom
graphics API — capable of running Quake at playable framerates.

## Key facts (from the site and video)

- **Architecture:** fixed-function tile-based rasterizer (mid/late-90s feature set,
  no programmable shaders), four independent tile rasterizers, full fp32
  front-end.
- **Clocks:** 400 MHz GPU core, 480 MHz texture units.
- **Texturing:** mipmapped textures with point/linear and bilinear filtering,
  dedicated texture caches (see the "Texture Units" blog post for the deep dive).
- **Host interface:** PCIe Gen2 x4 with custom Windows drivers.
- **Software:** custom API called **FuryGL** (Vulkan-inspired); no D3D/Vulkan
  support since there are no shaders. Games must be ported by hand.
- **Status:** creator has expressed intent to open-source it, but no timeline;
  as of this download the RTL is *not* published.
- The 2025 video shows cubemap support being added (unfiltered, edge artifacts
  still present — sample selection across cube faces is hard in hardware).

## Folder contents

| Path | What it is |
|---|---|
| `links.md` | Original links this download was based on |
| `website/www.furygpu.com/about.html` | Project overview page |
| `website/www.furygpu.com/blog/hello.html` | Blog post: project history and origins (Mar 2024) |
| `website/www.furygpu.com/blog/furygpu-texture-units.html` | Blog post: texture unit design deep-dive (Mar 2024) |
| `website/www.furygpu.com/index.html`, `blog.html` | Site home and blog index |
| `youtube/Cubemaps!.mkv` | 66-sec demo video (Apr 2025): cubemap rendering on FuryGPU |
| `youtube/Cubemaps!.info.json` / `.description` / `.webp` | Video metadata, description, thumbnail |

Sources: https://www.furygpu.com/about · https://www.youtube.com/watch?v=LViPHnp7zJY
(no captions existed for the video; it is a silent demo, so the clip itself was saved)