obsidian/MyObsidianVault/Knowledgebase/Godot/2D/Use Sprite Atlas Tile as Texture Rect (e.g. for ScrollContainer).md

To use a tile from an atlas for a TextureRect in a ScrollContainer in Godot 4.3, follow these steps:

1. Create or Load a TileSet Atlas:

   • Import your sprite sheet into Godot and create a TileSet resource. Define the tile regions in the TileSet editor[3].

2. Set Up the AtlasTexture:

   • For each tile you want to use, create an AtlasTexture resource. Set its atlas property to your sprite sheet and define the region to crop the specific tile[4].

3. Configure the TextureRect:

   var atlas_texture = AtlasTexture.new()
   atlas_texture.atlas = preload("res://path_to_your_spritesheet.png")
   atlas_texture.region = Rect2(x, y, width, height)  # Coordinates of the tile
   $TextureRect.texture = atlas_texture
   

   Replace x, y, width, and height with the tile's position and dimensions[4].

4. Add to ScrollContainer:

   • Place the TextureRect inside a container (e.g., VBoxContainer) that is a child of the ScrollContainer. Ensure the container's size exceeds the ScrollContainer's viewport to enable scrolling[2][5].

Troubleshooting:

• If textures don't update after modifying the atlas, avoid using "Make Unique" on AtlasTexture instances, as this breaks the link to the original atlas[1].
• For crashes when adding many TextureRect nodes, ensure the ScrollContainer's children are properly nested and avoid excessive updates during runtime[5].

This approach leverages Godot's AtlasTexture to efficiently reuse tiles from a sprite sheet while maintaining scrollable UI elements.

Citations: [1] https://www.reddit.com/r/godot/comments/12cttew/godot_4_textureatlas_questions/ [2] https://docs.godotengine.org/en/stable/classes/class_scrollcontainer.html [3] https://docs.godotengine.org/en/stable/tutorials/2d/using_tilesets.html [4] https://docs.godotengine.org/de/stable/classes/class_atlastexture.html [5] https://github.com/godotengine/godot/issues/75713 [6] https://www.youtube.com/watch?v=w3jla1fTZuQ [7] https://docs.godotengine.org/en/4.3/classes/class_atlastexture.html [8] https://docs.godotengine.org/en/4.3/classes/class_scrollcontainer.html [9] https://docs.godotengine.org/en/stable/classes/class_texturerect.html [10] https://www.youtube.com/watch?v=2o_IiotMnls

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Antwort von Perplexity: https://www.perplexity.ai/search/godot-4-3-use-tile-from-atlas-HHNbSG1FRniUTuYX96GNzA?utm_source=copy_output