[fishermanbill]

Does all this shader really get around is the problem of display inversion?

From Gemini: "Display inversion is the process of alternating the voltage between positive and negative for each pixel on an LCD screen to prevent damage. This process is called polarity inversion."

If display manufacturers knocked that on the head for certain scenarios then surely we could just have a simple block of horizontal screen scrolling down the display at high refresh rates?

Phosphor fall off as far as can be seen in Slo Mo Guys is quite a small effect not on the scale of this shader.