Testing Beetle PSX HW new features

Libretro Cores
#1

MDEC: Great. I’m gonna use this with Reverse AA shader which improves fmvs sharpness, especially text.

mdec
mdec.jpg1920×1080 404 KB

mdec
mdec.jpg1920×1080 299 KB

MSAA: Perfect, it allows you to play with a lower resolution compared to your monitor native one by getting completely rid of aliasing, performance loss seems negligible aswell.

msaa
msaa.jpg1920×1080 571 KB

Super Sampling (Downsample from internal upscale): this is a mixed one, improves some 2d internally filtered elements, worsens others and downscales polygons. I guess it should be used only with CRT monitors or shaders.

ss
ss.jpg1920×1080 467 KB

4 Likes
#2

I’ve been testing out Super Sampling and find that it works best on games that use 3D characters on pre-rendered backgrounds. I’ll get some screenshots later, but in FFIX it allows for the characters to fit in the world much better than normal.

#3

Yeah SS is good but only if you emulate on a crt or by using a crt shader. If you emulate by increasing internal resolution to get better graphics is useless, you’ll just lose polygon details cause of downscaling.

#4

Back when I still had my 3dfx Voodoo 5 5500, the glide plugin with SSAA on ePSXe was pretty amazing with 3d/2d background games. :slight_smile:

#5

Here’s FFIX for example with and without SSAA. Vivi fits much more naturally into the space.

Final%20Fantasy%20IX-181215-200001
Final Fantasy IX-181215-200001.jpg2880×2160 1.43 MB
Final%20Fantasy%20IX-181215-195946
Final Fantasy IX-181215-195946.jpg2880×2160 1.42 MB

#6

For a game like Mega Man Legends 2 that has sharp clean lines you don’t get as much benefit from SSAA

Higher%20Internal%20Res
Higher Internal Res.png2880×2160 1.01 MB
Super%20Sampling
Super Sampling.png2880×2160 213 KB
Background
Background.png2880×2160 143 KB

#7

Higher%20Resolution
Higher Resolution.png2880×2160 712 KB
Native%20Resolution%20copy
Native Resolution copy.png2880×2160 190 KB
Super%20Sampling
Super Sampling.png2880×2160 234 KB
Just another example.

#8

Yeah let me quote myself

Yeah SS is good but only if you emulate on a crt or by using a crt shader. If you emulate by increasing internal resolution to get better 3d models is useless, you’ll just lose polygon details cause of downscaling.

#9

Guys, please, explain something to me.

It’s possible to just increase the internal resolution like 8x AND just let the output screen in a way that the shaders can look at it? Don’t downscaling the image (losing quality in the proccess, right?), just tell that the output screen is at 1x.

It’s possible?

#10

No, you can’t increase the size and also not increase the size.

The shaders are (mostly) designed to work with low-res sources. The SSAA option shrinks the high-res images down to low-res for that purpose.

#11

Ok. Thank you hunterk.

One more: it’s possible to create a shader that get a screen upscaled to 8x and then prepare that same screen to a shader like nnedi3 do their magic correctly?

#12

How demanding is the SSAA option for the GPU?

I would like to know the minimum GPU requirement to run SSAA with at least 8x.

Thanks.

#13

Super Sampling? Definitely not demanding at all (i’m playing on a gtx 850m, video card of 5 years ago)

#14

Yes. Super sampling. Can you run at fullspeed with your GPU with at least 8x?

#15

It depends from game to game, but mostly yes.

#16

It is possible: reshade.