I've created a free editor tool that provides advanced configuration options for Unity's built-in lightmapping system, unlocking hidden features not accessible through Unity's own Lightmapping window. Lightmapping Extended includes support for all Beast XML settings that are compatible with Unity, many of which are not included in Unity's own documentation. Notable Features: Lightmapping Settings Presets - store project-wide presets that can be applied to multiple scenes Image-Based Lighting - light your scene with a panoramic HDR image. Path Tracer GI - a fast, multi-bounce lighting solution. Monte Carlo GI - a very slow but extremely accurate lighting solution. Download for free on the Asset Store Full source is also available on GitHub Feel free to post any questions and comments in this thread.