Question Bake a texture from shader

I would like to export my grid created in Shader Graph as a texture, but the exported png file doesn't contain any graphics.

Code (CSharp):

1.     public int size = 900;
2.     public Material material;
3.     public void ExportAsPng()
4.     {
5.         // Create a temporary RenderTexture of the same size as the texture
6.         RenderTexture tmp = RenderTexture.GetTemporary(
7.                             size,
8.                             size,
9.                             0,
10.                             RenderTextureFormat.Default,
11.                             RenderTextureReadWrite.Linear);
12.  
13.         // Blit the pixels on texture to the RenderTexture
14.         Graphics.Blit(null, tmp, material);
15.  
16.         // Backup the currently set RenderTexture
17.         RenderTexture previous = RenderTexture.active;
18.  
19.         // Set the current RenderTexture to the temporary one we created
20.         RenderTexture.active = tmp;
21.  
22.         // Create a new readable Texture2D to copy the pixels to it
23.         Texture2D myTexture2D = new Texture2D(size, size);
24.  
25.         // Copy the pixels from the RenderTexture to the new Texture
26.         myTexture2D.ReadPixels(new Rect(0, 0, tmp.width, tmp.height), 0, 0);
27.         myTexture2D.Apply();
28.  
29.         // Reset the active RenderTexture
30.         RenderTexture.active = previous;
31.  
32.         // Release the temporary RenderTexture
33.         RenderTexture.ReleaseTemporary(tmp);
34.  
35. #if UNITY_EDITOR
36.         string folder = $"{Directory.GetParent(Application.dataPath)}/Images";
37. #else
38.         string folder = $"{Application.dataPath}/Images";
39. #endif
40.         string path = Path.Combine(folder, "Test.png");
41.         byte[] bytes = myTexture2D.EncodeToPNG();
42.         File.WriteAllBytes(path, bytes);
43.     }

 

Did you ever figure this out?

 

Hi, nope. If anything changes, I will write here.

 

Graphics.Blit method won't work with Shader Graph files.
You can check how Shader Graph uses PreviewManager.cs for rendering preview nodes.

If anyone needs ready to use solution, check Shader Graph Baker tool on the Asset Store: