BradLarson/GPUImage — pull request #456 by jagbolanos (2012-09-04 21:19:08+00:00)
Title: The GrayscaleFilter wasn't respecting the alpha channel

Hi,

I found your library and I'm testing it for a project. I discovered that the GrayscaleFilter doesn't respect the alpha channel when applying it to a transparent/semi-transparent image. I did a minor change to the filter.

Your library seems great! I still have to test it more but it looks like it does everything I need.

Cheers!

Jorge.