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Fixed in 2018.2.X
[Metal] Texture2D.GetNativeTexturePtr creates a new texture and returns pointer to the new texture instead of the original
1. Open project attached by the user
2. Open "MainScene" scene
3. In Edit->Project Settings -> Player enable Metal support for the editor
4. Hit play
Expected: Both textures should have the same color because the second texture is just a pointer to the original one.
Actual: Color is changed only on original texture which means that a new texture was created and Texture2D.GetNativeTexturePtr returned a pointer to this new texture.
Reproduced with: 2017.1.0b1, 2017.1.0p1, 2017.2.0b4, 2017.3.0a1
Not reproducible with 5.6.2p4
Reproduces only on Metal API, OpenGL works as expected.
Fixed in Unity 2018.2.0a1
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Feb 15, 2018 15:28
Also having trouble with GetNativeTexturePtr on Metal. Last known working version is 5.6.4p1, still persists in 2017.3.1p1.
For me the problem is not calling GetNativeTexturePtr (returned pointer stays the same when i call it multiple times in one frame), but using Texture2D.SetPixels and Texture2D.Apply. After those calls, GetNativeTexturePtr returns new values each time - only on Metal.