Scanlines etc in MAME

deadl0ck · 01-04-2019 2:15pm #1

Anybody here bother with scanlines in Mame ?

I wanted to try them out (as I'm running my Cab with a 19 inch 4:3 LCD) but I'm getting terrible performance with bgfx.

My setup is:

Mame64 0.182
Core i3 @ 3.3Ghz
4GB RAM
GeForce 210 Graphics card (Yes, I know it's not great)

I've tried some optimisations also, but no help - here's what I tried:

throttle                  0
sleep                     0

artwork_crop              0
use_backdrops             0
use_overlays              0
use_bezels                0
use_cpanels               0
use_marquees              0

video                     bgfx

bgfx_screen_chains        crt-geom&#65279;

Any ideas as to what's causing this ?

I know it's not a superfast setup, but I thought I should be able to have some screen effects !

CathalDublin · 01-04-2019 2:19pm

Are you getting input lag or screen tearing?

deadl0ck · 01-04-2019 3:42pm

Here it is running normally:
https://photos.app.goo.gl/tRK3MBMLZdJLjhLc6

And here it is with

video                     bgfx
bgfx_screen_chains        crt-geom

https://photos.app.goo.gl/pGSFFTsbcuuBXoDR7

o1s1n · 01-04-2019 5:31pm

Read into MAME hlsl - I posted a config file setup here a while back that works great. It's more CRT emulation (so scanlines, CRT curve)

Can't seem to find where it was posted!

deadl0ck · 01-04-2019 5:35pm

o1s1n wrote: »

Read into MAME hlsl - I posted a config file setup here a while back that works great. It's more CRT emulation (so scanlines, CRT curve)

Can't seem to find where it was posted!

I'll take a look, but I though that HLSL was more power hungry than BGFX ?

Anyhow - setting "effect" to "scanlines" seems to work, except I don't get the nice rounded corners on the screen...
Must read up on HLSL

Inviere · 01-04-2019 5:38pm

I'm not very up on MAME tech, but I think BGFX has superceded HLSL?

Can you describe the problem, maybe it's just my tv, but I'm not seeing a huge difference between the two pics

deadl0ck · 01-04-2019 5:46pm

Inviere wrote: »

I'm not very up on MAME tech, but I think BGFX has superceded HLSL?

Can you describe the problem, maybe it's just my tv, but I'm not seeing a huge difference between the two pics

The game stutters like mad with BGFX enabled.
Can you not hear the sound on the videos ?

eddhorse · 03-04-2019 8:12am

:rolleyes: May just get a CRT

Although your streams seem to work well currently.

o1s1n · 03-04-2019 9:17am

Never heard of BGFX! Although I'm pretty out of the emulation loop. Once I get something working I tend to just use it for an age. Must give it a look.

HLSL has never given me any grief running it on laptops with onboard graphics, so I don't think the requirement in that regard is particularly high.

deadl0ck · 03-04-2019 9:39am

o1s1n wrote: »

Never heard of BGFX! Although I'm pretty out of the emulation loop. Once I get something working I tend to just use it for an age. Must give it a look.

HLSL has never given me any grief running it on laptops with onboard graphics, so I don't think the requirement in that regard is particularly high.

Strange then - I thought my basic hardware would be sufficient - anyhoo, the scanline effect in the MAME config is fine for now

Scanlines etc in MAME

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