> > > > > EDIT 2: The game selection screen also looks oddly blueish... which does seem > > > > > consistent with the other posted video! > > > > > > > > That just looks like the guy had the blue on the RGB knobs turned up too much, > or > > > the > > > > G and R turned down too much. You sometimes have to adjust them for every pcb > and > > > he > > > > didn't do it correctly for this game. > > > > > > see smf's reply, it's a weird issue with monitors that adjust their base voltage > > > according to what it is at a certain position in vblank / vblank etc. > > > > > > most do this, but not all. > > > > > > maybe if one day MAME emulates different types of monitors (which in itself could > > add > > > another frame of lag) we might see simulation of how each different one reacts to > > the > > > signal, but until then MAME just assumes 'perfect, base voltage = 0 / black' > while > > > many monitors will do something else entirely. > > > > In regard to the bluish pic I was responding to, that is clearly from a pcb > recording > > setup where they have the blue adjusted wrong. It's not a pic of a monitor causing > an > > issue or else you would see scanlines. The pcb goes to the rgb converter then the > > converter goes to the PC capture card and could also be split to also go to a > monitor > > but that wouldn't change the look of the capture. > > For comparison, here's both videos in the same post: > https://www.youtube.com/watch?v=UiJeLfruoh4 > https://www.youtube.com/watch?v=UiJeLfruoh4
But they get there 2 different ways and have nothing to do with each other. The pic you posted doesn't prove anything. I've recorded hundreds of pcbs. That pic is a capture from a PC card after a pcb went through an RGB card/converter and the guy has the RGB settings wrong. It doesn't show anything in regard to a monitor having an effect. It's just random coincidence that some monitors do something similar to setting the RGB knobs incorrectly for a pcb in a supergun or similar setup. There's no scanlines in the pic and it's way too perfect for a camera, it's not from an arcade monitor.