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  How to change and image transparency  (Read 1822 times)
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Offline Norakomi
« Posted 2014-05-29 16:11:06 »

Hi,

I wanna create a splashscreen/logoscreen when i start my game.
And i want to be able to change the transparency values of my logo so it fades into focus starting at being invisible (fully transpatrent?) to visible (no transparency) over a certain period of time (i'm thinking to just use a counter?).

the way i pain my logo onscreen now is this:
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g.setColor(Color.white);
g.fillRect(0, 0, 480, 800);
g.drawImage(splashscreenlogo, 0, getHeight() / 3, this);


So I'probably wanna have a for loop run over my g.drawImage function, and set the transparency values within this loop,but i have no idea how i set the transparency values of my image.

Can anyone help?

Offline Slyth2727
« Reply #1 - Posted 2014-05-29 16:46:33 »

This link should show you all you need to  know Smiley
Next time try and fire up old google, that was the first thing that popped up when I searched "java2D transparency".

http://www.informit.com/articles/article.aspx?p=26349&seqNum=5
Offline Norakomi
« Reply #2 - Posted 2014-05-29 17:48:48 »

This is what i was looking for!

TY

yeah i searched around, on different sites (google included), but couldnt find what i was looking for...

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Offline philfrei
« Reply #3 - Posted 2014-05-29 18:45:48 »

Slyth2727's link looks good.

Here is where I first learned how to do this, from a JGO post by StumpyStrust:
http://www.java-gaming.org/topics/java2d-clearing-up-the-air/27506/msg/246444/view.html#msg246444

There are a bunch of nifty suggestions there, including resizing/scaling, in addition to the info about changing transparency levels.

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