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Fixed in 2019.3.X



Found in








Issue ID




It's not possible to create Texture2DArray with Compression because It doesn't have SetRawTextureData/GetRawTextureData

Graphics - General


To reproduce:

1. Download attached "update Texture Array content at" project and open in Unity
2. Open "Texture2DArray" scene
3. Select "Main Camera" gameObject
4. In the Inspector window navigate to "Texture 2D Array Exporter" component
5. Click over the Gear icon and then press Run Good Test - Texture2DArray is not Compressed and observe that it Draws the Image correctly
6. Click over the Gear icon and then press Run Bad Test - Texture2DArray is Compressed and observe that it does not Draw the Image and trows Warning and Error:

Reproduced on Unity 2017.4.0f1, 2017.4.27f1, 2018.3.14f1, 2018.4.2f1, 2019.1.7f1, 2019.2.0b6 and 2019.3.0a6

  1. Resolution Note (fix version 2019.3):

    Using older APIs like SetPixel/SetPixels will still produce errors and that is intended behaviour. A new API called SetPixelData was added to Texture2D, Texture2DArray, Texture3D, Cubemap and CubemapArray to allow setting these texture types with any user-supplied data.

    Previously reported errors are intended & by design, i.e. when a user tries to set a texture to use an unsupported format via SetPixel and similar, similar errors will be produced:

    "‘ETC2_RGBA8’ is not supported on this platform. Decompressing texture. Use ‘SystemInfo.SupportsTextureFormat’ C# API to check format support.
    UnityEngine.Texture2DArray:.ctor(Int32, Int32, Int32, TextureFormat, Boolean)
    Texture2DArrayExporter:RunTest() (at Assets/Scripts/Texture2DArrayExporter.cs:36)
    Texture2DArrayExporter:BadTest() (at Assets/Scripts/Texture2DArrayExporter.cs:21)"

    "Unsupported TextureFormat(47) for SetPixel operations.
    UnityEngine.Texture2DArray:SetPixels(Color[], Int32, Int32)
    Texture2DArrayExporter:RunTest() (at Assets/Scripts/Texture2DArrayExporter.cs:42)
    Texture2DArrayExporter:BadTest() (at Assets/Scripts/Texture2DArrayExporter.cs:21)"

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