koobas.hobune.stream
Are Texture2Ds in a Resources folder always loaded in memory?
Hey Unity people,
I used this small script to print out all loaded Texture2D in my game and I noticed that some of them are loaded even if I'm 90% sure they shouldn't be. Here is the script:
var textures = Resources.FindObjectsOfTypeAll(typeof(Texture2D));
int totalBytes = 0;
foreach (Texture2D t in textures)
{
int memorySize = Profiler.GetRuntimeMemorySize(t);
if (memorySize > 0.4f)
Debug.Log("Texture object " + t.name + "(" + t.width + "x" + t.height + "|" + t.format + ") using: " + memorySize + "Bytes", t);
totalBytes += memorySize;
}
Debug.Log("Total bytes: " + totalBytes);
I tried Resources.UnloadUnusedAssets to unload those assets but that doesn't seem to make any difference.
My main question is: do Texture2Ds automatically load into memory when they are placed in a Resources folder whether you use them or not?
Side questions: How can I tell why is that Texture loaded in memory? Is somebody referencing it? How can I search the scene for the game object that references it?
Thanks in advance.
No textures in Resources are not always loaded into memory (they are always included in the build). However as they are always accessible to a Resources.FindObjectsOfTypeAll then they will be loaded into memory when that code runs.
You can tell what uses something in the editor by running a scene, finding the texture in the project, right clicking and use Find Scene References.
Erm..... So basically, by just running that code, I load all textures in memory? Haha! That's good to know. I did run the Find Scene References but wasn't finding anything referencing what my code was saying. But I guess now it makes sense why. Thanks!
