How to create a pre-multiplied png

[Herbert123]

Sometimes (especially in game dev and video) you require a pre-muliplied alpha channel in your PNGs (either with black or white). Although there is no direct option in Photoline's png export to include one (and png officially does not support this feature anyway), it is quite simple to create one yourself.

For more info on this topic, and the advantages of pre-multiplied alpha channels for certain applications, read up on them here:
http://blogs.msdn.com/b/shawnhar/archiv ... alpha.aspx

I prepared a 1min:30sec long video tutorial for your viewing pleasure.

http://www.estructor.biz/trainingvids/premultiply.mp4