edgbla's gpuBladeSoft

[Exophase]

Originally Posted by Hard core Rikki

Dont real PSXs renders quads as triangles?

Yes.

The image quality and performance trade-offs of rendering quads directly depends on how it's done. There's no one standard way to render quads. The most natural way, bilinear interpolation, is very expensive to do in screen space. Two-fold scanline-based linear interpolation (like Nintendo DS does) is faster but still substantially more expensive than triangles because you have to compute gradients every scanline, while triangles are supposed to have constant gradients (and PS1 does this properly).

Bilinear interpolation will produce less visible distortion due to lack of perspective correction. You can see this in Saturn games vs PS1 ones. Two-fold will be about the same for quads that are aligned with the x axis, which is often the case for stuff with a lot of depth change. Like roads going off into the distance.

In other PS1 GPU emulators like peops I've seen the option to use a quad renderer over a triangle renderer there to make inaccuracies less obvious. But I know gpuBladeSoft doesn't have this particular issue.

Originally Posted by ubersyte

Guys I have a question if you could help me.

I have a 3570k@4.4ghz and putting internal res above 1x1 really kills my framerates in some games. Is this normal behaviour? I ask because someone earlier in this thread was reporting ok gameplay with their 3570k (albeit at 4.7ghz) with 2x2 internal res. There shouldn't be much in 300mhz!

Maybe due to different games? PS1 games vary their GPU load a lot, and it's not always visually obvious.

[ubersyte]

Originally Posted by Exophase

Maybe due to different games? PS1 games vary their GPU load a lot, and it's not always visually obvious.

K, I'll go along with that. Thanks.

[Hellbringer616]

I'm the one with the other 3570k And the games i tested were Legend of Legaia and Digimon world 3. I've no idea how GPU intensive they are, But just to let you know.

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[ubersyte]

LEGAIA!!!!!!!!!!!!!!!!! only my first and fav psx game ever!

Thanks for letting me know. But I have a favour to ask . Could you let me know how you've configured the rest of the plugin settings? I'd like to try out your settings and see if I'm getting normal framerates.

[Hellbringer616]

Uploaded the .ini with my config on it.

either enable view extensions for known file types and change it to .ini or open the current .ini and paste it there

But basically to get the speed up make sure "disable dfe emulation" is unchecked, and bilinear filtering is off

There are a few bugs with shadows half missing in Lagaia, And another issue (i'm sure it's just my PC)

But i cant' get exclusive fullscreen, it just kinda sits as a window, so i can still see my task bar, But it doesn't have a border. Figure out how to fix that and i'll love you haha

Attached Files

gpuBladeSoft.txt (5.5 KB, 12 views)

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[ubersyte]

Originally Posted by Hellbringer616

Uploaded the .ini with my config on it.

either enable view extensions for known file types and change it to .ini or open the current .ini and paste it there

But basically to get the speed up make sure "disable dfe emulation" is unchecked, and bilinear filtering is off

There are a few bugs with shadows half missing in Lagaia, And another issue (i'm sure it's just my PC)

But i cant' get exclusive fullscreen, it just kinda sits as a window, so i can still see my task bar, But it doesn't have a border. Figure out how to fix that and i'll love you haha

thanks again! i'll give it a go when my exams are over

[Hellbringer616]

Hi guys, while reading through the GPUbladesoft thread i made a discovery.
v1.41 isn't the latest version. as listed here
http://forum.emu-russia.net/viewtopi...p=16248#p16248
version 1.42a is, And it fixes a lot of bugs from what i've read, Now i haven't had time to test it as i discovered it on my lunch break, But i wanted to let you all know it's here!

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[fischkopf]

Originally Posted by KrossX

#EDIT .... wait wait wait... Z-buffer and Tessellation? O.O

#EDIT2: Texture replacement? O.O

well, until now. BAM

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Last edited by fischkopf; May 8th, 2013 at 23:01..

[TTmicoTT]

Originally Posted by Hellbringer616

Hi guys, while reading through the GPUbladesoft thread i made a discovery.
v1.41 isn't the latest version. as listed here
http://forum.emu-russia.net/viewtopi...p=16248#p16248
version 1.42a is, And it fixes a lot of bugs from what i've read, Now i haven't had time to test it as i discovered it on my lunch break, But i wanted to let you all know it's here!

Thanks, Hell! Can you speak Russian? I went to the link in your post and can't understand a damn thing. Hehehe...

[Hellbringer616]

Originally Posted by TTmicoTT

Thanks, Hell! Can you speak Russian? I went to the link in your post and can't understand a damn thing. Hehehe...

No, i just use google translate. The fullscreen bug seems fixed. Though i still feel that the resolution isn't rendered right, only because when i load up a game the analog indicator is HUGE

Also still no texture replacement, Hellbringer is a sad panda indeed

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[Hoj]

Originally Posted by Hellbringer616

Though i still feel that the resolution isn't rendered right, only because when i load up a game the analog indicator is HUGE

That's because it's rendering at the native PSX res, so the analog/save states box is affected as well. You can reduce the size of it by editing the ini (it's a hidden option).

[Hellbringer616]

Here i thought it scaled it, Since it gives you the option to change resolution. Seems like a pointless option. But oh well. edgbla knows more about it then i do.

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[Exophase]

Originally Posted by fischkopf

well, until now. BAM

Yeah I don't think so, the plugin doesn't even get depth data with vertexes. What is it supposed to be buffering? Maybe a full emulator could somehow infer depth from GTE output but a plugin doesn't even see that..

If this is from the readme it probably really refers to something else and something's lost in translation. If it really did have depth perspective correct interpolation would have been a much nicer enhancement.

[Mikhail000]

Can you add a option to adjust 2D textures to Red8 Green8 Blue8 Alpha8

[KrossX]

@Exophase: He does have some interesting screenshots.

"Precise Filtering" and "Zbuffer" Gallery. I like the texture stuff, looks great. The zbuffer trickery shows the white shirt off, but at least the legs got covered.

Also, BladeSoft's Quad render comparison:

You Tube

You Tube

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[Hellbringer616]

KrossX, I watched the example. But i am curious, As Exophase said normally rendering Quads as tris so far has been to cover up inaccuracies that GPUBladeSoft just doesn't have. So what is the purpose of this? Does it enhance visual quality? Sorry if i sound moronic. Just curious

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[Hard core Rikki]

I suppose its meant to reduce distortions from texture warping when filtering is used for textures on 3d surfaces.
The absence of z buffer should change nothing regarding usable information from fixed or relative placement of 3d graphics within games.

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[the_randomizer]

Originally Posted by Hard core Rikki

I suppose its meant to reduce distortions from texture warping when filtering is used for textures on 3d surfaces.
The absence of z buffer should change nothing regarding usable information from fixed or relative placement of 3d graphics within games.

Is that why PSX games look effed up when 3D objects move (i.e jittery movements)?

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[Hard core Rikki]

Originally Posted by the_randomizer

Is that why PSX games look effed up when 3D objects move (i.e jittery movements)?

The typically higher output resolution on PCs is faulted the most for that, but it's less notable when you stick to native psx resolution and/or unfiltered textures. Not ps1-specific though.

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[KrossX]

@the_randomizer: I suppose is the GTE accuracy, as the anti wobble thing of PEOPS GL deals with that. Enough accuracy for the given resolution and TVs, but not enough for emus as HCR said.

@Hellbringer616: The normal way is to render triangles (as the PSX does), and doing the quads proper might help weird texturing. If BladeSoft didn't have such problem, maybe it becomes apparent at higher internal resolutions. And it may be a requirement for the nice texture filter.

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