# Mesh LOD

> LOD Group is a flexible Unity LOD solution. It provides more optimization options than the Mesh LOD feature, but has a larger memory footprint and computational overhead.

Mesh LOD is a Unity feature that reduces the number of polygons to draw with minimum memory footprint and computational overhead.

| **Page**                                                                                                                                            | **Description**                                                                     |
| --------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- |
| [Introduction to Mesh LOD](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/mesh-lod/mesh-lod-introduction.md)                     | Overview of the Mesh LOD feature and its limitations.                               |
| [Generate LODs on import](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/mesh-lod/mesh-lod-generate-lods.md)                     | Learn how to generate LODs at import time.                                          |
| [Mesh LOD runtime quality](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/mesh-lod/mesh-lod-quality.md)                          | Learn about settings that let you configure how Unity selects Mesh LODs at runtime. |
| [How the Mesh LOD generator works](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/mesh-lod/mesh-lod-generator.md)                | Overview of the Mesh LOD generator and the LOD generation process.                  |
| [Make Mesh LOD transitions smooth](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/mesh-lod/lod-transitions-mesh-lod.md)          | To make LOD transitions smooth when using Mesh LOD, enable cross-fading.            |
| [Troubleshooting Mesh LOD visual artifacts](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/mesh-lod/mesh-lod-troubleshooting.md) | Learn how to avoid and mitigate visual artifacts in generated LODs.                 |

## Additional resources

* [Introduction to level of detail (LOD)](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/level-of-detail.md)

* [LOD Group](/engine/6000.7/manual/analysis/graphics-performance-profiling/lod/lod-group.md)