I’m using Graphics.CopyTexture to load a Texture2D into a Texture2DArray.
Both the texture and textureArray are DXT5 format.
This gist shows it working fine in 2017.2.
In 2018.3 two errors are thrown. “Invalid texture format: 12” and “Image invalid format!”.
Anyone have any ideas?
Getting these errors with DXT1 and BC5:
Invalid texture format: 10
Invalid texture format: 27
It will be very annoying if this bug ends up in the final release.
poking some devs…
Great news, thanks
I’m also keen to see this fixed.
Any word on this? I get at least one bug report a day about it because my assets use texture arrays…
@Tim-C Could you poke some more for us? 
Doesn’t look like it’s fixed in Beta10 either.
Issue now seems to have been fixed. I presume we’ll be good to go from 2018.3b11.
issue tracker says “Fixed in Unity 2019.1” though…
@rz_0lento A bit confusing but I’m pretty sure it should still make its way back to 2018.3. I think Unity just writes down the first version to include the fix.
it’s possible sure, I just wouldn’t take it granted until any official note on it
but we’ll see soon enough…
We’re working on getting this fix to 2018.3.
Was in the b12 release notes as fixed, still broken…
Graphics.CopyTexture with a region will not copy readable texture data for compressed formats (source texture format 12)
UnityEngine.Graphics:CopyTexture(Texture, Int32, Int32, Texture, Int32, Int32)
JBooth.MicroSplat.MicroSplatUtilities:smile:rawTextureSelector(Int32, Texture2DArray, Boolean) (at Assets/MicroSplat/Core/Scripts/Editor/MicroSplatUtilities.cs:190)
MicroSplatShaderGUI:OnGUI(MaterialEditor, MaterialProperty[ ]) (at Assets/MicroSplat/Core/Scripts/Editor/MicroSplatShaderGUI.cs:184)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
Yes, there was more than one issue. The complete fix will be in the next release.
https://issuetracker.unity3d.com/issues/graphics-dot-copytexture-not-working-for-compressed-textures-anymore