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Fixed in Unity 2018.2



Found in


Issue ID




Errors in Console window when painting a procedurally generated terrain




Priority: 3Not yet prioritized for a release


Severity: 3Secondary functionality broken

Steps to reproduce:
1. Open the attached project (
2. Open the Assets/TestScene.unity scene
3. Switch platform to WebGL
4. You should notice to the above two errors in the console when loading the scene:
GetPixels32 failed: insufficent pixel buffer size (4), must be at least 4 x 4
Failed to get pixels of splat texture
5. Begin painting any of the textures on the terrain in the scene
6. Note the two errors listed above in the console repeated multiple time

Expected result: Painting terrain without errors
Actual result: Console printing error messages

These error messages only appear when the platform is set to WebGL.

Reproduced with: 5.3.6p8, 5.4.3p4, 5.5.0f3, 5.5.0p2, 5.6.0b2

Comments (2)

  1. 714607cc289c286d3385b13540dbc973?d=mm


    Sep 26, 2018 07:39

    To solve problem you must in each texture which you use in terrain check Read/Write enable and turn off compression.

  2. 2fabfc1ced29bcbe833ce631bf98de50?d=mm


    Apr 24, 2018 09:38

    How to solve this problem?I have take this problem in Window platform project

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