Using GetPixels with Texture Format RGBA Compressed ASTC results in blurry image.

Questions & Answers
1

Hi guys,

I’m working on a project where we have to have our textures saved in the format of RGBA Compressed ASTC 4x4 block. I’ve found however when copying the textures with GetPixels and SetPixels to a RGBA32 format there is a dramatic drop in quality; The format change is because SetPixels only works with certain formats.

112189-getpixel-quality-loss.png
112189-getpixel-quality-loss.png733×366 38.7 KB

112190-zoomed-in-quality-loss.png
112190-zoomed-in-quality-loss.png658×741 39.9 KB

Have tried it with and without MipMaps and I have gotten the same result.

Using the following code for this texture example;

public Texture2D testTexture;
public RawImage rawImage;

	void PixelExample(){

		Color[] pixelColors = testTexture.GetPixels();

		Texture2D newTextures = new Texture2D(testTexture.width, testTexture.height, TextureFormat.RGBA32, true);

		newTextures.SetPixels(pixelColors);
		newTextures.Apply();

		rawImage.texture = newTextures;
	}

Does anyone have an idea how to get around this without changing the Texture Format?

2

hey;
why do u use GetPixels() at the first place ?

cant u just save the texture ?

did u do any modification to the texture before saving ?