18 lines
1.4 KiB
Markdown
18 lines
1.4 KiB
Markdown
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# Preparing Sprites For Lighting
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To light __Sprites__ with __2D Lights__, the [Sprite Renderer](https://docs.unity3d.com/Manual/class-SpriteRenderer.html) component of the Sprite is assigned a material with a Shader that reacts to 2D Lights. With the 2D Lights preview package installed, dragging Sprites onto the Scene automatically assigns the ‘Sprite-Lit-Default’ material to them which enables them to interact and appear lit by 2D Lights.
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Alternatively, you can create a custom Shader that reacts to Lights with the [Shader Graph package](https://docs.unity3d.com/Packages/com.unity.shadergraph@5.6/manual/Getting-Started.html). The Shader Graph package is available for download via the Package Manager.
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## Upgrading to a compatible Shader
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If you are installing the 2D Lights package into a Project with pre-existing Prefabs, materials or Scenes, you will need to upgrade any materials used to a lighting compatible Shader. The following functions automatically upgrade a Scene or Project automatically in a one way process. Upgraded Scenes or Projects cannot be reverted to their previous state.
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### Upgrading a Scene
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To upgrade the currently opened Scene, go to __Edit> Render Pipeline > UniversalRP 2D Renderer > Upgrade Scene To 2D Renderer__
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### Upgrading a Project
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To upgrade all Prefabs and materials in your Project, go to __Edit > Render Pipeline > UniversalRP 2D Renderer > Upgrade Project To 2D Renderer__
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