Sure, thats fair enough. I was a bit embarrassed though when I realized my issue. :)

In my plugin I am doing multipass rendering, and the strange box blur effect came from the image being flipped...

Hi. Nevermind. I fixed it :)

Hello.

I am developing a plugin for an environment which uses GLSL rendering on a quad, in which a callback function needs to be able to handle whether my input images are flipped or not, so I...