What is an alpha channel?

I am a beginner with Unreal Engine 5 and game development in general, and the tutorials I watch keep mentioning “Alpha Channel”, but I cant find anything on the internet that explains what that is. What is it, and what is it used for?

Hi TheHumlsSmuggler,

The Alpha channel describes how transparent the pixel is - if the Alpha is 1.0, it is fully opaque (solid) and if it’s 0.0 it is completely transparent.


Thank you, it makes sense now!

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