Problem with importing sprites with alpha channel

Anteater · Thu 23/04/2009 15:29:47

While using the latest version of AGS, importing .pngs with alpha channels doesn't give the option to import the sprite with an alpha channel. The closest I can get is using the top/bottom/left/right pixel for the transparent color, which results in an ugly halo around the sprite. What am I doing wrong?

GarageGothic · Thu 23/04/2009 17:13:54

Are you importing multiple .PNG's at once or just a single one? At least when importing them individually, I get a message box saying:

QuoteThis image appears to have an alpha channel. Do you want to use it?

When importing multiple sprites (using "Quick import"), I believe the transparency setting will be identical to that of the last individual sprite you imported.

Anteater · Thu 23/04/2009 18:14:43

I'm importing them one at a time.

Pumaman · Thu 23/04/2009 19:54:26

Are you sure the images actually have alpha channels? What graphics program are you using to create them?

Anteater · Thu 23/04/2009 21:18:41

Gimp. I'm pretty darn sure that the images have alpha channels.

monkey0506 · Thu 23/04/2009 23:02:03

It sounds like somewhere between editing the file and saving it your PNGs are getting flattened...you may need to check your source files. I can personally guarantee that alpha-channel PNGs import properly in the latest version of AGS. Provided they have an alpha channel of course.

Anteater · Fri 24/04/2009 02:32:37

Okay I'll check that.

RetroJay · Mon 27/04/2009 07:13:03

Hi Anteater.

This may seem like a silly question but is your games color depth 32bit (true colour)?
Cos if its not then it needs to be to allow alpha channels.

I know this cos I had exactly the same prob. Mind you I still can't get alpha channels to work but this is cos
I am doing them all wrong with my paint program. :

Anteater · Mon 27/04/2009 20:22:52

Yeah I'm sure of that. I think I'm doing something very wrong with my image editor.

Gilbert · Tue 28/04/2009 01:48:47

Can you upload a small PNG file that exhibits this problem for us to investigate?

Anteater · Tue 28/04/2009 04:27:49

Here's a simple test pattern I was using.

Gilbert · Tue 28/04/2009 04:32:29

It works for me. Upon importing the image the editor asked me whether I want to use the alpha channel and it's displayed perfectly in game.

Can you double check to make sure your game is in 32-bit?

Anteater · Tue 28/04/2009 04:50:07

Holy cow it was set to 16 bit.

Mods, feel free to get rid of this topic.

Badger · Thu 07/01/2010 11:49:23

Thank you for keeping this one open..was a real help