Is it possible to use Resources.Load() to load an entire subfolder?

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I'm a unity newbie, so I'm sorry if this really easy. I'm just having trouble finding examples online of this.

I have a subfolder within the Resources folder. This subfolder contains several images that I would like to load. The number of images within this folder will not always be the same, so I don't just want to hard code loading in each image separately, because I don't know how many there will be. Is it possible to load the entire subfolder at once and save it to an array? I tried the below code and it throws errors. Any suggestions?

The images are in Assets/Resources/Images/

Texture[] images = Resources.Load("Images/", typeof(Texture)) as Texture;

Answer 1

Best Answer

Answer by TBruce · Apr 16, 2016 at 08:00 PM

@ eclaire211

Try

 Texture[] images = Resources.LoadAll("Images", typeof(Texture));

or if you would rather use a List

 using System.Collections.Generic;
 List<Texture> images = new List<Texture>(Resources.LoadAll("Images", typeof(Texture)));

Note, depending on your needs, you may want to use Texture2D instead of Texture.

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eclaire211 · Apr 16, 2016 at 08:23 PM 0

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@Mavina Thank you for your answer! However, I'm still having an issue. I just tried:

Texture[] images = Resources.LoadAll("Images", typeof(Texture)) as Texture[]; (I added in the "as Texture[]" because it was throwing errors without it)

When I try to access the images array, I get a NullReferenceException. Do you know why my array is null?

TBruce eclaire211 · Apr 16, 2016 at 09:02 PM 0

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@eclaire211

My bad, do this instead

 Object[] objects = Resources.LoadAll("Textures", typeof(Texture));
 Texture[] images;
 if (objects != null)
 {
     images = new Texture[objects.Length];
     for (int i = 0; i < objects.Length; i++)
     {
         images[i] = (Texture)objects[i];
     }
     Debug.Log("images.Length " + images.Length);
 }

or if using a List

 using System.Collections.Generic;
 
 Object[] objects = Resources.LoadAll("Textures", typeof(Texture));
 List<Texture> images = new List<Texture>();
 if (objects != null)
 {
     images = new Texture[objects.Length];
     for (int i = 0; i < objects.Length; i++)
     {
         images.Add((Texture)objects[i]);
     }
     Debug.Log("images.Length " + images.Length);
 }

eclaire211 TBruce · Apr 16, 2016 at 10:46 PM 0

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@Mavina Thank you so much! This fixed the problem! :)

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RodrigoSeVeN eclaire211 · Mar 13, 2018 at 04:19 PM 0

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You can also do it this way (I haven't tried with lists or Texture specifically):

 using System.Linq;
 Texture[] images = Resources.LoadAll("Images", typeof(Texture)).Cast<Texture>().ToArray();

Is it possible to use Resources.Load() to load an entire subfolder?

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