Editing alpha in 32 bit images.

BlitzMax Forums/BlitzMax Beginners Area/Editing alpha in 32 bit images.

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So I've played about with the samples in the Bmax folder and I see a few images do take advantage of alpha component, and i'd like to be able to use it too.

However for the life of me I can't find something that let's me edit the alpha layer. I have Paintshop Pro 8, and although when loading the png it does acknowledge the alpha layer (describing it as O for opacity I assume) but I cannot find anything to alter it on it's own. All the colour, layer stuff and help files doesn't mention anything better than 24 bit so I suspect PSP8 doesn't do alpha layers.

What programs do you guys use for altering the alpha layers of your images? I don't exactly have a fabulous budget so any cheap recommendations would be greatly appreciated.

Alternatively is there a stop gap solution in Bmax where a grayscale image could be combined with an existing 24 bit image to create an alpha'd image? Looks possible, if a little awkward and time consuming.