A cute little trick to running classic IIR filters on the GPU

In my previous behemoth post I mentioned the struggle of implementing a comb + notch filter that looked passable for analog composite video. The blurring effect of adding the notch with FIR filtering was far too great, and there’s no way TVs at the time did it that way. Nagging issues like these haunt me … Continue reading A cute little trick to running classic IIR filters on the GPU