Lightmaps are pre-calculated lighting textures that store illumination for static geometry. Unity generates them via a multi-step process that transforms 3D meshThe main graphics primitive of Unity. Meshes make up a large part of your 3D worlds. Unity supports triangulated or Quadrangulated polygon meshes. Nurbs, Nurms, Subdiv surfaces must be converted to polygons. More info
See in Glossary data into optimized 2D textures. Both the Realtime Global IlluminationA group of techniques that model both direct and indirect lighting to provide realistic lighting results.
See in Glossary system and the Baked Global Illumination system use lightmaps, and therefore need lightmapA pre-rendered texture that contains the effects of light sources on static objects in the scene. Lightmaps are overlaid on top of scene geometry to create the effect of lighting. More info
See in Glossary UVs.
| Page | Description |
|---|---|
| Lightmap generation process | Learn how Unity generates lightmaps. |
| Baked lightmap UVs | Learn how baked lightmap UVs are per-mesh so all instances share the same UVs. |
| Real-time lightmap UVs | Learn how Unity computes real-time lightmap UVs. |
| Generating lightmap UVs | Generate lightmap UVs on import or use your own. |
| Lightmap packing | Learn how Unity packs lightmaps and select the Unity lightmap packer. |
| Check lightmap UVs | Check real-time and baked lightmap UVs. |
| Lightmap UVs reference | Learn about the model import settings. |