Graphics.CopyTexture doesn't work correctly when using Texture Streaming

Unity: Texture

As Designed

2023.2.X

2023.1.X

2022.3.X

2021.3.X

This issue is "by design", even if the error reporting (or rather, the lack of it) doesn't make it immediately obvious what is happening. The Graphics.CopyTexture does not load the mipmap levels needed to perform the copy. If you wish to copy a full texture, you must thus ensure that all mipmap levels are loaded using, for example, "m_tex0.requestedMipmapLevel = 0" followed by a wait until "m_tex0.IsRequestedMipmapLevelLoaded()" is "true" -- only then will the CopyTexture look correct.

How to reproduce:
1. Open the user-attached project “TextureStream”
2. Click Build And Run
3. In the Player, click "Load Tex0", "Apply Tex0" and then "Copy Tex0 to Tex1" buttons
4. Observe the two Cubes

Expected result: The textures on both Cubes are identical
Actual result: The texture on the second Cube is different

Reproducible with: 2021.3.28f1, 2022.3.4f1, 2023.1.3f1, 2023.2.0a23

Reproducible on: Windows 11 Pro, macOS 13.4 (Intel)

Note: Not reproducible in the Editor

Graphics.CopyTexture doesn't work correctly when using Texture Streaming

Unity: Texture

As Designed

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Graphics.CopyTexture doesn't work correctly when using Texture Streaming

Unity: Texture

Statuses

As Designed

Resolution Notes

Description

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Have a workaround or additional info about this issue?