DevIL alpha channel

[amannis]

How can I check if an image has an alpha channel or not? I checked the DevIL docs but couldn't find anything.
I need to know if I have to pass RGB or RGBA for glTexImage2D().

I've been using ImageIO before and then I just always created an image of type BufferedImage.TYPE_4BYTE_ABGR and it worked fine with just passing RGBA to glTexImage2D().

I guess ILUT had somekind of texture loading method which did this automatically?

[WiESi]

I'm not sure, but look here:
http://openil.sourceforge.net/docs/il/f00027.htm
Try ilGet either with IL_IMAGE_FORMAT or IL_IMAGE_TYPE. I don't know exactly.

WiESi

[amannis]

Ah i should've looked more carefully, ilGetInteger(IL_IMAGE_FORMAT) did the trick.

Thanks!