setAlpha

Craig H. Nisbet

(Posted 2007) [#1]

is there some trick to using setAlpha? It seems to not respond to floating point numbers for me. It's acting like an integer.

setAlpha 0.6 'will give me 100% alpha
setAlpha 0.5 'will give me 0% alpha

I'm using this before the draw code. Is that correct? Is there a special image mode I'm supposed to be in to get proper alphas?

Craig H. Nisbet

(Posted 2007) [#2]

Wait a minute, I think I need to use Alphablend mode

Amon	(Posted 2007) [#3]

Yep! You need to use SetBlend(ALPHABLEND) for it to work properly.

Craig H. Nisbet

(Posted 2007) [#4]

lol, thanks, gotta love that manual.

Craig H. Nisbet

(Posted 2007) [#5]

Yep, that got it.

tonyg

(Posted 2007) [#6]

You don't *have* to set alphablend. You can use setalpha for other blends but notice

MASKBLEND Pixels are drawn only if their alpha component is greater than .5