What is (GI & 011) == 0 mean...

[ignarmezh]

Hi!
Sorry for the easiest question, but I don't understand what does if ((GI & 011) == 0) mean in your Assets/MiniEngineAO/Shaders/Downsample1.compute.
011 is octal number? Could we write this with decimal numbers?
Thanks!

[Invertex]

Yes, it's an Octal-Literal, since it starts with a zero and no x afterwards.

https://microsoft.github.io/hlsl-specs/specs/hlsl.pdf (Page 13)

It may be a slight performance optimization, but I would wager it doesn't make a difference if you used an integer instead... It would be interesting to hear what @keijiro has to say about it.

But in the meantime, you can always just change it to the uint value and see if it makes any difference to the result and performance! :)