Raymatic

Raymatic is a short experimental puzzle game made in two weeks, powered by a custom CPU-based ray tracing and path tracing engine I developed over six weeks as part of Year 1, Block C at BUAS.

Goal

Rotate procedurally deformed 3D objects until their shadows match a target shape. A concept inspired by Shadowmatic, reimagined with real-time CPU ray/path tracing. Each level challenges your perception and spatial reasoning in a calm, minimalist environment.

How To Play

Follow the tutorial in the game.

Engine Highlights

• Built from scratch in C++ – no external rendering libraries
• Fully CPU-based real-time ray tracing & path tracing
• Acceleration Structure – Uses TinyBVH 1.5.0 for fast scene traversal

Lighting System

• Direct lighting: Point, Spot, Directional, and Area (Quad) lights
• Indirect lighting: Skydome illumination, Emissive geometry, and multi-bounce global illumination via path tracing

Physically-Based Materials

• Ray-traced: Diffuse, Reflective, Dielectric (Glass)
• Path-traced: Emissive and Lambertian with metallic/smoothness blending for flexible surface creation

Rendering Features

• HDR Skydome lighting
• Texture mapping
• Depth of Field
• Anti-aliasing
• Stochastic sampling