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General of Tangerines
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3,934 Posts
Discussion Starter · #1 ·
I use to run ePSXe 1.60 without any problems but now the emulator runs very slowly.

The slowdown even occurs when running only BIOS.

I decided to go with the basic settings:

Plugin: Pete's OpenGL Driver 1.1.75
Author: Pete Bernert
Card vendor: NVIDIA Corporation
GFX card: GeForce2 MX/MX 400/AGP/SSE/forceSW

Resolution/Color:
- 640x480 Window mode
[16 Bit]- Keep psx aspect ratio: off

Textures:
- R4G4B4A4
- Filtering: 0
- Hi-Res textures: 0
- VRam size: 32 MBytes

Framerate:
- FPS limitation: off
- Frame skipping: off
- FPS limit: 60

Compatibility:
- Offscreen drawing: 0
- Framebuffer texture: 0
- Framebuffer access: 0
- Alpha multipass: off
- Mask bit: off
- Advanced blending: off

Misc:
- Scanlines: off
- Line mode: off
- Unfiltered FB: off
- 15 bit FB: off
- Dithering: off
- Screen smoothing: off
- Screen cushion: off
- Game fixes: off [00000000]

I'm using the Eternal SPU 1.41.

The only major change I made is I'm running Windows XP now as oppose to Windows 98 SE.

Does this emualtor run XP?
 

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Registered
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9,504 Posts
Might be the audio plugin. Try with the timer, thread, and SPUasync options, as well as increasing the buffer size. Also try Peops if that doesn't help

Also some of my games don't run at full speed if I have the SPU IRQ hack disabled or enabled.
 

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Premium Member
bsnes, ePSXe
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21,982 Posts
do you have an AA or AF turned on?

my best guess is that your drivers got fecked on the update from 98 to XP. did you do a reformat, or just an upgrade? most likely if you did a straight update, some of your old 98 drivers are still laying around and that causes problems with XP.
 

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General of Tangerines
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3,934 Posts
Discussion Starter · #5 ·
hushypushy said:
do you have an AA or AF turned on?

my best guess is that your drivers got fecked on the update from 98 to XP. did you do a reformat, or just an upgrade? most likely if you did a straight update, some of your old 98 drivers are still laying around and that causes problems with XP.
Nope I installed XP on a different partition so I have a dual boot system.

For Windows 98 the older Nvidia drivers are used while XP has the lastest Forceware drivers installed.

I just notice that the new Nvidia drivers does not allow you to change the OpenGL settings while the old drivers could.

What's the difference between D3D DX6 and Pete's OpenGL drivers?
 

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Premium Member
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6,341 Posts
Having the newest drivers might be the problem. The latest ForceWares (or any recent version) aren't designed to run on a GF2 optimally. You might want to try an older version if possible.
 

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Premium Member
bsnes, ePSXe
Joined
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21,982 Posts
RZetlin said:
What's the difference between D3D DX6 and Pete's OpenGL drivers?
other than the obvious fact that OGL runs using OpenGL, D3D uses Direct3D directX7 and D3D DX6 uses Direct3D DX6...there really isnt much difference. well, there is one big difference. OGL is the only one that actually runs on DX7. D3D DX6 runs on, well, DX6, but regular D3D isnt quite DX7 entirely...ok ok ok that's too confusing. in short, the OGL plugin has correct subtractive blending and the D3Ds do not.
 

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General of Tangerines
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3,934 Posts
Discussion Starter · #8 ·
I decided to take the step to degrade my Nvida drivers from 71.89 to the Nvidia Omega Drivers 1.6693 (Forceware 66.93).

The emulator runs perfectly with the OpenGL plugin.

In most cases new would have mean better, but not this case.
 

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Premium Member
bsnes, ePSXe
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21,982 Posts
hell with the GF2 in there you can (and maybe should) revert back to much much older drivers...
 
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