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Terrain: trees hidden while painting texture

Discussion in 'World Building' started by dts0301, Feb 14, 2021.

  1. dts0301

    dts0301

    Joined:
    Feb 12, 2016
    Posts:
    7
    Hi, I have an issue where while I am holding down the click to paint my terrain with a layer all the trees are hidden and when I release, they reappear. What's causing this and how can I make it not do this?
     
    dts0301, Feb 14, 2021
    #1

  2. StaggartCreations

    StaggartCreations

    Joined:
    Feb 18, 2015
    Posts:
    2,102
    That's by design, terrain painting would otherwise slow down to a crawl.
     
    StaggartCreations, Feb 14, 2021
    #2

  3. JemWritesCode

    JemWritesCode

    Joined:
    Dec 13, 2021
    Posts:
    1
    Is there a way to turn it off though? The flashing of the trees in and out makes me feel sick similar to flashing lights :(

    For now I went to Terrain Settings > Tree & Detail Objects > Draw and clicked it off to hide the trees but it'd be better if I could just have the trees always drawn while I'm editing terrain
     
    JemWritesCode, May 9, 2023
    #3

  4. wyattt_

    wyattt_

    Unity Technologies

    Joined:
    May 9, 2018
    Posts:
    422
    The only way to do this, that I know of, is via code. All the paint tools have an OnPaint function with a bool as a return value. This boolean tells the tree renderer whether or not to hide the trees while painting
     
    wyattt_, May 12, 2023
    #4

  5. SimonLevato

    SimonLevato

    Joined:
    Apr 4, 2017
    Posts:
    6
    Hey, I took the source code from the original paint texture tool from unity and added some changes that should not hide tree's while painting: https://pastebin.com/xMxnHua2
    Copy the code from the pastebin code > Create a new script under "YourProject/Assets/Editor" called "CustomPaintTextureTool.cs".
    You will now find a new tool in the "Paint Terrain"-dropdown, called "Paint Texture Custom".

    Explanation: I found the source code here https://github.com/Unity-Technologi.../TerrainEditor/PaintTools/PaintTextureTool.cs
    I renamed the class, renamed the tool name, and set OnPaint to return false (as @wyattt_ said in his reply).
    NOTE: I haven't tested this class, and you might need to have TerrainTools installed for this to work (https://docs.unity3d.com/Packages/com.unity.terrain-tools@4.0/manual/index.html). I'm at work and can't test it at the moment
     
    SimonLevato, May 12, 2023
    #5
    wyattt_ likes this.