I've been in the "business" for almost 15 years, always hand waved my way through premultiplication. Excellent article, thanks to the author I've seen the light

I've been in the "business" for almost 15 years, always hand waved my way through premultiplication. Excellent article, thanks to the author I've seen the light. That being said, the bleeding trick mentioned is widely in use, as it doesn't require modification of all shader pipelines.