Liquid-Red

A Python 3D rasterizer engine running entirely in the terminal. No GPU, no display server - just ASCII characters and math.

Built on perspective projection, barycentric rasterization, a z-buffer, and Lambert shading.

Guide

• Getting Started
  • Installation
  • Quick Start
• Examples
  • Cube Example
  • Coordinate System
  • Corridor Scene

API Reference

• API Reference
  • Camera
  • Renderer
  • Geometry
  • Objects
  • Events

Features

• Perspective projection with configurable focal length and zoom

• Z-buffer for correct depth ordering

• Barycentric triangle rasterization

• Lambert shading with ASCII intensity ramp

• Camera with yaw/pitch rotation and jump physics

• Plane helpers (draw_plane_xy, draw_plane_xz, draw_plane_yz)

• Solid cube + wireframe edges

• Keyboard input via pynput