WebGPU real-time ray tracer

Web-RTRT is a real-time ray tracing implementation that runs directly in web browsers using the WebGPU API. It implements the ReSTIR (Reservoir Spatiotemporal Importance Resampling) algorithm to achieve high-performance, physically-based rendering with global illumination effects in real-time.

Key Features

• ReSTIR Algorithm — Implements reservoir spatiotemporal importance resampling for efficient real-time ray tracing with reduced noise
• WebGPU Rendering — Leverages modern browser graphics API for high-performance GPU-accelerated rendering
• Real-time Global Illumination — Provides physically-based lighting with indirect illumination effects
• Denoising & Super Resolution — Includes post-processing options for improved visual quality on various hardware
• Multiple Scene Support — Comes with several demonstration scenes including room, seahouse, and sponza environments

Philosophy

The project demonstrates that advanced real-time ray tracing techniques previously limited to native applications can now run efficiently in web browsers using modern graphics APIs.