Need to understand GetRawTextureData but I can't

Unity Engine
1

Hi,

I have a texture that is 2048x2048 but when I call GetRawTextureData I get an array of length 524,288.

So what I cannot understand is why as 2048*2048 = 4,194,304 and how do I change the array element corresponding to say [10,10].

Can anyone help?

2

So you know, the 2D forum here is not related to general graphics questions.

I’ll move your post to the graphics forum for you.

3

Probably you are calling it on a texture that is compressed. GetRawTextureData will return the compressed texture data. You need to use a uncompressed texture format to set the colors at runtime, or use a texture that unity supports runtime texture compression for.

4

@joshuauacwilde I believe you are correct as the editor is show 2048x2048 RGB Compressed DXT1|BC1 UNorm when previewing the png.

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