Texture.GetNativeTexturePtr sometime returns 0.

Question

In my tool, I generate many RenderTextures. I facing a probrem at runtime program built by Unity 2019.1.5f1.

Some of textures seems to be not usable. I did a lot of researches, I found Texture.GetNativeTexturePtr() returns 0 about unusable texture when only runtime.

I check with following

 var texture = new RenderTexture(width, height, depth, format);
 texture.enableRandomWrite = true;
 // log to external file
 AddLog($"New RenderTexture Create ({texture.GetNativeTexturePtr()});");
 AddLog($"Is Created: {texture.Create()}");
 AddLog($"New RenderTexture Created ({texture.GetNativeTexturePtr()});");

The some result is seems good like that:

 New RenderTexture Create (0);
 Is Created: True
 New RenderTexture Created (2679896030752);

But some result remains 0:

 New RenderTexture Create (0);
 Is Created: True
 New RenderTexture Created (0);

This problem is not occurred in unity editor. By runtime, some environments occur and some do not. Each machines are windows10.

Please help me if you know anything about it.

Answer 1

Answer by takeuchi_unity625 · Nov 25, 2020 at 04:26 AM

I try to use CustomRenderTexture instead of RenderTexture, Texture.GetNativeTexturePtr always returns non-zero value.

I think that it must not correct solution...

I'm going to wait and see...

---add 11/27/2020

The problem has caused again.

For now, I fixed like following, I can't do anything else. It may return a non-zero value If generate many times.

 if (texture.GetNativeTexturePtr().ToInt64() == 0) {
     const int TrialCount = 100000;
     int count = 0;
     do {
         System.Threading.Thread.Sleep(1);
 
         texture.Release();
         texture= new CustomRenderTexture(width, height, format);
         texture.enableRandomWrite = true;
         texture.Create();
 
     } while ((texture.GetNativeTexturePtr().ToInt64() == 0) && (++count < TrialCount));
 }

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Answer 2

Answer by lijohn925 · Nov 25, 2020 at 05:04 AM

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Texture.GetNativeTexturePtr sometime returns 0.

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