Search found 9 matches

by jimmer
16 May 2018, 17:13
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

I'm a bit lost on the contents of each frame and their durations and +ve or -ve voltages :) so I'll just ask: is there a cheaper version using 144Hz displays that gives strobed response times of the order 8ms ?
by jimmer
16 May 2018, 15:01
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

Yes I understand all those examples, thanks. I forgot about strobe when I was doing the diagram, here's my latest attempt. I've shown the transmit taking 4ms now with the scanout running in parallel with a slight lag. Maybe I can remove VsyncOffset from my pre-vysnc times, I don't understand well en...
by jimmer
16 May 2018, 09:37
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

Yes, 240Hz VRR + 60fps cap is the lowest emulator lag you can get today on LCD without RunAhead and without tearing. That said, same amount of motion blur as 60fps at 60Hz. ah yes, I forgot to say that no tearing is an absolute requirement for me. Also I'm more interested in average or worst case p...
by jimmer
16 May 2018, 09:28
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

Chief Blur Buster wrote:For top edge on some of my displays (begin of display scanout), I certainly can get API to photons in 3ms. That's mostly cable transmission lag + GtG lag.
Oh God, don't say things like that, you'll wake the audiophiles up.
by jimmer
15 May 2018, 17:52
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

But I'm still hoping there is a simple way (eg using 120fps monitor) to get the 60fps images being produced to display in less than 16ms. We just need to break the connection between the frame rate and transmission duration. I suppose it still needs a rewrite of something (maybe a display driver?). ...
by jimmer
15 May 2018, 17:44
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

I'm committed to LCD. For my ultimate Defender emulation I'm pretty sure now that I need to emulate the real behaviour and poll inputs every 8ms. And maybe I need this raster position info /buffer swapping technique so I can write to the bottom half of the screen while the top half is being drawn. T...
by jimmer
15 May 2018, 06:05
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

Thanks again. It's very helpful to have someone who understands what I'm trying to ask and knows the answers :) I have read the retroarch stuff previously and didn't really get it. I'll have another go now. But I'm wary of 'better than original' that's re-writing the game rather than emulating it be...
by jimmer
14 May 2018, 16:39
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Re: Is groovymame with 120fps BFI still a good option ?

thanks, it will take me some time to digest these replies. I should have said originally that reducing lag from my (already good) groovymame set up is more important than reducing blur (which I don't notice on my TN panels, I do notice something on my IPS panels). Basically after groovymame has fini...
by jimmer
14 May 2018, 07:02
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Is groovymame with 120fps BFI still a good option ?
Replies: 24
Views: 10659

Is groovymame with 120fps BFI still a good option ?

Goal: Mame arcade classics with reduced lag and blur. Currently I use groovymame with 19" 1280x1024 60fps TN panels. I've read threads from 2013 about Black Frame Insertion using 120fps monitors. Is this still a good option? or is there a better thing now? I don't have a 120fps monitor so I can't te...