How to LoadImage with transparency?

Unity Engine
,
1

Right now I am using following code to load textures from files in my game(and I want to load them like this):

        var bytes = File.ReadAllBytes(AbsolutePath);
        var texture = new Texture2D(1, 1,TextureFormat.ARGB32,false);
        texture.LoadImage(bytes);

The thing is that this texture has transparent regions and they become black after loading texture. How can I load partially transparent texture using Texture2D.LoadImage?

2

Hi @Zylkowski_a ,
If you are loading a PNG image, have you checked the loaded textures’ alpha channel to see if there’s some data?

3

I don’t really know how should I check it there’s some data. And yes I am loading PNG btw

4

Use Texture2D.GetPixel. At least in my quick test just a moment ago I could load in alpha channel from a PNG with similar code.

5

@Olmi Unity say that this pixel is RGBA(0.000, 0.000, 0.000, 1.000), I tried with one that was RGBA(0.000, 0.000, 0.000, 0.000) and both of them are black ingame

6

Well, if the image data is correct,it should show up. But that depends also on your shader.
I just tried loading my test png from disk and it does show up correctly when I apply that image as a sprite.

I used code like this:

var bytes = File.ReadAllBytes(AbsolutePath);
var texture = new Texture2D(1, 1,TextureFormat.ARGB32,false);
texture.LoadImage(bytes);
Sprite sprite = Sprite.Create(texture, new Rect(0,0,texture.width, texture.height), new Vector2(0,0));
GetComponent<SpriteRenderer>().sprite = sprite;

Result looks like this:
5920466--632597--alpha_circle.PNG

But I’d definitely also check the image and try some other tool/plugin for saving like SuperPNG in Photoshop. I think @bgolus has suggested it too sometime in the past as a good option, if I remember correctly.