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![Doom 3 IceBridge Direct3D 12 Path Tracing](https://i.imgur.com/DRjYU5J.jpeg)
![IceBridge Prey Support](https://i.ibb.co/sdYqLS1f/image-14.webp)
![IceBridge Quake 4 Support](https://i.ibb.co/r2xbFYtM/image-13.webp)
## Overview
This is **Doom 3 running through IceBridge**, a Direct3D 12 renderer layer designed to bring modern GPU rendering features to classic idTech 4 technology while keeping the original game’s dark, industrial atmosphere intact.
This is **Doom 3, Prey, and Quake 4 running through IceBridge**, a Direct3D 12 renderer layer designed to bring modern GPU rendering features to classic idTech 4 technology while keeping the original atmosphere and visual identity of each game intact.
IceBridge is now a **unified code base** supporting:
- **Doom 3**
- **Prey**
- **Quake 4**
This demo shows Doom 3 rendered with **Direct3D 12**, **path tracing**, **final gather**, and **global illumination**, adding richer lighting, more natural shadowing, improved reflections, and a deeper sense of atmosphere without rebuilding the game’s original art direction from scratch.