Can I create a motion colorizing pixel shader in WPF? -

i have video playing of lines being drawn on screen. possible create pixel shader (for wpf) turns newly colored pixels color n milliseconds?

that way, there can indication user movement on screen when lines don't move , user isn't looking @ screen.

you can use directshow. written in unmanaged code, need use wrapper directshow.net in order use in c# application running in managed environment (samples included, evr stands enhanced video renderer means better video quality). , when passing control handle wrapper method setting video output, need winforms control, because them can desired control handle. winforms control can host in wpf application using windowsformshost control provided such situations when need use winforms control(s) in wpf application. theory, dont know if ultimate solution you.

btw: whole idea based on fact, directshow query constructed separated filters. renderer filter (evr, vmr-7, vmr-9). sound player filter. , connected through pins. diagram. electronic schema or that. , can put example grey scale filter in there. , voila, video output greyscale. there bunch of tutorials that. , completed simple filters well. unfortunately, filters must written in c++:(

ps: never said gonna easy:d