Hoodoo GPU architecture custom campaign

This is the repository containing levels of the custom campaign for the game Turing Complete.

This campaign is usable only on the SAVE_BREAKER/alpha branch of the game

Features

• Introduction to signed fixed-point numbers
• Explaining the basics of rasterization, including color interpolation and barycentric coordinates
• Build a GPU capable of rendering 3D models

Installation Instructions

First of all, you need to download the campaign:

1. Download one of the releases on the right side
2. Unpack the contents (You should get a bunch of folders starting with gpu_)
3. Move the folders into the level directory in your Turing Complete game files
4. Start the game

Then you have three ways to play the campaign:

1. In the main menu, press Q and in the console type load gpu_campaign, and press Enter. That will load the campaign screen. Unfortunately with this approach you have to load the campaign screen again after completing each level.

2. Using dev_mode you can add the gpu_campaign level to the main campaign screen. That makes it much easier to open the campaign each time you complete a level.

3. Using dev_mode you can add all the levels of the campaign to the main campaign screen. This approach is the most work, but after completing a level you are moved back directly to the campaign.

Preview

Roadmap

Legend:
✔️ - Done
🔨 - In Progress
⭕ - Not Done Yet
❌ - Probably won't be supported

• V1:
  • ✔️ Fixed-point numbers introduction
  • ✔️ Basics of triangle processing - interpolation, barycentric coordinates
  • ✔️ Vector and Matrix operations
  • 🔨 Setting up the MVP matrix and projecting vertices
  • 🔨 Decoding five simple commands (draw, get_status, change_ram_offset, change_triangle_count, change_mvp)
  • 🔨 Getting the rasterizer and vertex transformer together into Hoodoo V1
• V2:
  • ⭕ Half-pixel correction
  • ⭕ Alpha composition
  • ⭕ Backface culling
  • ⭕ Hardware dithering
  • ⭕ Double buffering
  • ⭕ Z-buffer
  • ⭕ More rasterizers in parallel
  • ⭕ Fully programmable pipeline

Contributing

If you want to contribute to the campaign, feel free to report bugs, make feature requests and send PRs!

Enjoy!