Comment 10 for bug 170650

Working back on old stuff can't be that bad...
I feel the alpha channel, and compression options also handy. Atm, i need to re-edit the exported png files with Gimp. For the FlightGear Flight Simulator project for example, which use the OpenSceneGraph as engine, it is very important that the textures doesn't have an useless (non-needed) alpha channel. I don't know much about the technical part of it, but it just add an useless layer of computation for no reasons and can slow down the frames per seconds drastically if you use many or big textures.

Kind regards