Loading texture file from png/jpg file on disk

Archived Forums Questions & Answers
1

In my game, I’d like players to be able to customize their profiles by loading “avatar” from HDD (which would be standard image file). However I don’t know how to do that, and couldn’t find anything in the docs.

5 Answers

5
3

I just cooked this up for something I’m working on - hope you find it useful. :slight_smile:

public static Texture2D LoadPNG(string filePath) {

	Texture2D tex = null;
	byte[] fileData;

	if (File.Exists(filePath)) 	{
		fileData = File.ReadAllBytes(filePath);
		tex = new Texture2D(2, 2);
		tex.LoadImage(fileData); //..this will auto-resize the texture dimensions.
	}
	return tex;
}
How to allow users to import images from their disk within player build

+1 Doesn't require yield!! Thanks a bunch

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You don't need yield when using LoadImageIntoTexture, either, as long as you're loading a local file.

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If your texture ends up blurry and deformed, you might want to declare your texture that way: Texture2D tex = new Texture2D (2, 2, TextureFormat.BGRA32,false); I had to look around for a while before finding this so hopefully it'll help someone else!

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Thanks IMD. Could you make a video tutorial? I have no idea what to do with that. What I want to do is very simple, I have an image on a canvas, a button, by pressing the button you choose file name and it is loaded in the image object. How do I do this?

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This doesn't work for PVRTC or any other format, besides jpg/png as far as I understand.

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2

http://docs.unity3d.com/Documentation/ScriptReference/Texture2D.LoadImage.html

Can be first one be used with file:// protocol (second one is no go for me)?

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Yes, but if you use file:// then you can also use the second method. If you're doing a webplayer, then neither method is allowed.

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Well, I don't want players to change image file extensions to .txt, so first one is better. And since it will be game for sale, I don't think I'll make webplayer version.

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The second method doesn't involve changing image file extensions to .txt. You would only do that if you were loading the image file from a TextAsset, which is not an external file, so that doesn't apply at all.

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I think I'll use first method anyway so players can use images on web.

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5

Loading local file can also be done like this:

IEnumerator LoadTextureFromCache(string filePath)
    {
        if (!File.Exists(filePath))
        {
            yield break;
        }
        var www = UnityWebRequestTexture.GetTexture("file://" + filePath);
        yield return www.SendWebRequest();
//texture loaded
        var texture = DownloadHandlerTexture.GetContent(www);

    }
4
6

How do you load a tif image from code? supposedly you can use them if you import them from the editor, but im trying to load preexisting mods for a different game that uses tif.

im currently working on a netstandard library for parsing tiff files from binary but id prefer not to do it myself if i dont have to