So I have a game and I am trying to fake glow inside of it by using the hardwares capability to downsize textures causing them to blur.
The texture I wish to do this with is in a render buffer that is the size of the screen (not power of two)
What would be the quickest way to get these lower resolutions created? Tricking the software to make minimaps? Another fbo with the texture rendered on it in smaller size?