CUBY - Stable 3D Pixel Art for Godot 4.5.1+

Bring stable retro-style 3D pixel art to your Godot (4.5+) Forward+ projects with CUBY, a plug-and-play rendering toolkit inspired by modern texel-splatting and pixelated cubemap techniques.

CUBY is designed for developers who want the look of classic low-res 3D visuals without the usual camera shimmer and unstable pixel crawling. It combines cubemap rendering, palette quantization, dithering, LUT workflows, stylized lighting and billboard systems into a single package.

Perfect for:

• Retro-inspired 3D games
• Stylized low-resolution worlds
• Atmospheric pixel-art environments

✨ Features

Advanced Quantization & Dithering

• Multiple quantization modes:
  • None
  • Naive
  • Luma
  • Luma Chroma
• Adjustable quantization levels
• Multiple dithering patterns:
  • 2x2
  • 4x4 Bayer
  • Fake diffusion
• Geometry-only, sky-only or full-scene application

Stylized Lighting

• Standard PBR shading
• Toon shading mode
• Configurable outlines
• Temporal accumulation system for distant stability

Dynamic Retro Sky System

• Custom procedural sky shader
• Day/night cycle script
• Sun & moon rendering
• Dynamic cloud support
• Lightning effect support
• Atmospheric gradients
• LUT-based palette control

LUT & Palette Workflow

• Full Texture3D LUT support
• Built-in Palette → LUT converter
• Compatible with palettes from sites like Lospec
• Apply LUTs independently to:
  • Geometry
  • Sky
  • Particles

Custom Billboard & Particle System

Designed specifically for cubemap rendering:

• Cubemap-facing billboards
• Cylindrical grass billboards
• Stable fake spherical normals
• Directional and scattered facing modes
• Great for:
  • Grass
  • Leaves
  • Foliage
  • Stylized particles

Plug-and-Play

• Config preset resource
• Ready-to-use shaders
• Example materials
• Day/night controller script
• Sky assets
• Palette workflow tools

🛠️ Easy Setup

1. Drop the plugin into your addons folder
2. Enable it in Project Settings → Plugins
3. Configure the included .tres settings resource
4. Add the optional sky shader and  day/night script
5. Have fun!

🎨 Highly Customizable

CUBY was built to be flexible rather than restrictive.

• Use LUT-based palettes
• Tune temporal accumulation
• Adjust fallback
• Build your own custom shaders using the provided global uniforms

📦 License & Usage

Everyone who purchases CUBY is free to:

• Use it in personal or commercial projects
• Modify the source code and shaders
• Ship games and products containing the plugin
• Sell games made with it

However, you may NOT:

• Resell the plugin itself
• Redistribute the plugin files
• Reupload modified versions as standalone packages

The plugin is licensed for integration into your own projects, not for redistribution.

❤️ Made for Retro Rendering Enthusiasts

CUBY was built for developers chasing stable pixelated 3D visuals, MS-DOS, GameBoy and other retro graphics without sacrificing flexibility and artistic control.

If you make something cool with it, feel free to share it!

📝 User Manual

https://docs.google.com/document/d/16MEwlNQoI1Pm_KrkvT3x0k-e4lFzCExqtDZAK7AzfSA

Tested successfully with Godot 4.5.1 and 4.6.3.
Only compatible with Forward+.
Not mobile/web compatible!