Can you do transparency/alpha channels in iPhone games?

Unity Engine
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1

Can I have a grayscale alpha channel?

If not, does iPhone accept 2-color alpha channels? (pure black and pure white only?)

thanks guys!

2

And I am referring to textures, of course. Sorry if my original post was vague.

3

Yes. You just need to use one of the Transparent shaders.

4

DIs there a significant difference in framrate impact between 8-bit Alpha and 1-bit Alpha?

(grayscale vs. black or white only I mean)thanks for such a quick reply BTW, love this forum.

5

Unity doesn’t even import 1 bit alpha textures, so there shouldn’t be a performance difference.