How to tell if a Texture2D is readable?

Unity Engine
1

Hiya
I am doing something that requires reading texture data via GetPixels32. I’m working on a moderately sized team, so occassionally people submit assets without the read/write flag set. Is there a way to see if a texture is readable at runtime so I can avoid the game crashing and throw an error instead?

2

I’m not 100% sure but with the Texture Importer you change the Teture Type to Advanced and there should be an option Read/Write Enabled, and check it, try that out.

3

I know how to set it as read/write enabled, what I mean is at runtime I want to know if a texture I am grabbing is readable to prevent the game crashing. If there’s an exception I can catch that would probably work too. As it is anytime I run into a texture that’s not readable the game crashes rather than failing gracefully.

4

Use try/catch.

–Eric

5

I don’t know the C# equivalent - I was taught by JS to be lazy and not learn what type an exception is - but here’s the JS version:

try {
  // something which can throw an exception
} catch ( youMakeUpAVariableNameHere ) {
  Debug.Log("An exception was thrown: " + yMUAVNH.message );
}
6

System.Exception

–Eric

7

The specific case I was looking for was throwing a UnityException after checking again. Thanks much people! :slight_smile:

@Louis’ reply: I’m using C#, so it’s like this for anyone who wants it in C#:

try
{
    someTexture2DThatMightNotBeReadable.GetPixels32();
    //StuffWithTexture2D
}
 catch (UnityException e)
{
    Dbg.LogError("The world is ending");
}