If we can use separate distortions for R, G, and B, does this mean that the chromatic aberration is additive (like the aberration for yellow is approximately equal to the aberration for green plus the aberration for blue)?
Sicheng-Pan
Should we apply anti-aliasing after the wrap instead of before the wrap? If we apply it before the wrap, is it possible for the anti-aliasing effects be distorted in the wrong way?
starptr
Kinda unfortunate that the lens distortion forces higher pixel density towards the edges of the display, but since the display has a constant density of physical pixels you end up with a lower resolution
waleedlatif1
@Sicheng-Pan I would image we want to apply anti-aliasing after the wrap rather than before because applying anti-aliasing before the wrap can result in the anti-aliasing effects being distorted in the wrong way, particularly at the edges of the image. After reading some more, I found that anti-aliasing largely assumes that the edges are straight lines, and when the image is wrapped they are no longer straight lines so it wouldn't make sense to apply anti-aliasing before the wrap. Doing it after ensures that edges of the image are properly corrected for lens distortion before we apply anti-aliasing, resulting in a better final image.
If we can use separate distortions for R, G, and B, does this mean that the chromatic aberration is additive (like the aberration for yellow is approximately equal to the aberration for green plus the aberration for blue)?
Should we apply anti-aliasing after the wrap instead of before the wrap? If we apply it before the wrap, is it possible for the anti-aliasing effects be distorted in the wrong way?
Kinda unfortunate that the lens distortion forces higher pixel density towards the edges of the display, but since the display has a constant density of physical pixels you end up with a lower resolution
@Sicheng-Pan I would image we want to apply anti-aliasing after the wrap rather than before because applying anti-aliasing before the wrap can result in the anti-aliasing effects being distorted in the wrong way, particularly at the edges of the image. After reading some more, I found that anti-aliasing largely assumes that the edges are straight lines, and when the image is wrapped they are no longer straight lines so it wouldn't make sense to apply anti-aliasing before the wrap. Doing it after ensures that edges of the image are properly corrected for lens distortion before we apply anti-aliasing, resulting in a better final image.