45 lines
2.6 KiB
Markdown
45 lines
2.6 KiB
Markdown
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# Terrain Layers
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The **Terrain Layers** section contains a few tools to help manage Terrain Layers on Terrain.
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## Terrain Palette
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A **Terrain Palette** is a preset asset file that stores a collection of Terrain Layers. This preset file is similar to other Toolbox presets, which you can save or share.
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~~~~
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## Material Layer Palette
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The **Material Layer Palette** is a reorderable list that contains imported layers. Use the **Import From Terrain** button to import layers from a selected Terrain. Use the Add (**+**) and Remove (**-**) buttons on the bottom right to add or remove a layer. Alternatively, drag a layer row, and move it up or down to change its position in the list.
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When using the High Definition Render Pipeline, you cannot use more than eight layers. When using the Universal Render Pipeline or the built-in Terrain system, there's no limit to the number of layers, but increasing the number of splatmaps uses more memory, which might impact performance.
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The list order affects which channel and splatmap a layer uses. For example, the image below displays the respective splatmap and channel each layer uses when you assign them to a Terrain.
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| Position | Splatmap | Channel |
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| ---------- | ----------- | ------- |
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| Position 1 | SplatAlpha0 | Red |
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| Position 2 | SplatAlpha0 | Green |
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| Position 3 | SplatAlpha0 | Blue |
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| Position 4 | SplatAlpha0 | Alpha |
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| Position 5 | SplatAlpha1 | Red |
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## Edit Layers
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When you are done configuring the Layer Palette, click **Add to Terrain(s)** to add the layers to Terrain in the Scene.
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| **Property** | **Description** |
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| ------------------------- | ------------------------------------------------------------ |
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| **Clear Existing Layers** | Enable this checkbox to remove any existing layers on the Terrain before adding new layers from the palette. |
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| **All Terrains in Scene** | Enable this checkbox to apply changes to all Terrain in the Scene. Disable this checkbox to apply changes only to selected Terrain in the Scene. |
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| **Add to Terrain(s)** | Add palette layers to Terrain. |
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| **Remove All Layers** | Remove all layers from Terrain. |
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