# LB04 Global Ilumination and Path Tracing

### Resources

{% embed url="<https://blogs.nvidia.com/blog/what-is-path-tracing/>" %}

{% embed url="<https://www.youtube.com/watch?v=frLwRLS_ZR0>" %}

{% embed url="<https://rayground.com/view>" %}

{% embed url="<https://madebyevan.com/webgl-path-tracing/>" %}

An excellent introduction on the application of path tracing in Disney Movies

{% embed url="<https://graphics.pixar.com/library/PathTracedMovies/paper.pdf>" %}

### Software-based

#### Voxel cone

{% embed url="<https://www.youtube.com/watch?v=EJTc_t3G-js>" %}

#### RESTIR

{% embed url="<https://research.nvidia.com/publication/2021-06_restir-gi-path-resampling-real-time-path-tracing>" %}

{% embed url="<https://interplayoflight.wordpress.com/2023/12/17/a-gentler-introduction-to-restir/>" %}

## Lumen&#x20;

<https://www.quora.com/Is-Unreal-Engine-5s-Lumen-ray-tracing>

{% embed url="<https://dev.epicgames.com/documentation/en-us/unreal-engine/lumen-technical-details-in-unreal-engine>" %}

Unreal Engine 5's **Lumen** is a real-time global illumination and reflections system designed to provide high-quality dynamic lighting. It uses a combination of multiple techniques to achieve efficient real-time GI.&#x20;