Is 100% PSX emulation possible with the plugin-based PSX emulator?

[zero0w]

Is 100% PSX emulation possible with the plugin-based PSX emulator such as ePSXe?

[Ryos]

100%? No. No emulator can truly be 100% perfect. Very close to perfect? Yes. ePSXe is already there for many titles.

[lu_zero]

emulator can be even better in some aspect but cannot cover completely everything

[Zell]

If an emu runs at 99% , that is perfect !!

[zero0w]

I raised the question because I found VGS - a program in singular module - does not have those slow-down or annoying glitch problem for those games it supported. Even at times it does, it's not really noticeable. Same goes for Zsnes and UltraHLE, which are all in singular module.

Not to disrespect the effort on all plugin-based emulator, but I really do wonder if it's harder for the plugin-based emulator to "get it right"... than those singular module emu.

[Demigod]

Originally posted by zero0w
I raised the question because I found VGS - a program in singular module - does not have those slow-down or annoying glitch problem for those games it supported. Even at times it does, it's not really noticeable. Same goes for Zsnes and UltraHLE, which are all in singular module.

Not to disrespect the effort on all plugin-based emulator, but I really do wonder if it's harder for the plugin-based emulator to "get it right"... than those singular module emu.

Well, some plug-in based emulators like PJ64 run extremely accurately. I think the problem witn PSX emulation is the 3D acceleration, the graphics were never designed for it. Also, trying to emulate certain graphics features on the videocard hardware causes some slowdowns, since they're not properly supported.

[Prafull]

Perfection isnt possible but we can always try to reach close to it and I guess we are already moving in that direction.

[Jonys]

U get a cool PC and u'll not have any problems playing.....
You can get better graphics as well....but the emulation will be never be like the console.....never perfect...but for me is cool as it is now....

[Exophase]

I think that the current limitations are more in the API's being used (D3D and OGL) than the hardware itself. What I'm trying to say is that OGL 2.0 might make some functions of the PSX more accessable in HW acceleration.

[Demigod]

Originally posted by Exophase
I think that the current limitations are more in the API's being used (D3D and OGL) than the hardware itself. What I'm trying to say is that OGL 2.0 might make some functions of the PSX more accessable in HW acceleration.

Not likely. OpenGL 2.0 adds mostly shader functionality (among other things), and I doubt it'll improve PSX emulation at all. Any improvements to the API will be done to improve 3D graphics, and most 3D accelerators are optimized for rendering 3D scenes. 2D effects (like the swirly battle transition in FF9) will probably not be improved upon. OpenGL 2.0 is just to bring the API up to par with DirectX, which had superceded it a long time ago.

At any rate, trying to emulate graphical effects that aren't properly supported by the hardware will always lead to slowdowns or other problems. Software plug-ins, or software-based emulators will always hold an advantage here.

[Exophase]

Originally posted by Demigod79

Not likely. OpenGL 2.0 adds mostly shader functionality (among other things), and I doubt it'll improve PSX emulation at all. Any improvements to the API will be done to improve 3D graphics, and most 3D accelerators are optimized for rendering 3D scenes. 2D effects (like the swirly battle transition in FF9) will probably not be improved upon. OpenGL 2.0 is just to bring the API up to par with DirectX, which had superceded it a long time ago.

At any rate, trying to emulate graphical effects that aren't properly supported by the hardware will always lead to slowdowns or other problems. Software plug-ins, or software-based emulators will always hold an advantage here.

Maybe you should look at the OGL 2.0 specs again. Among other things, it has the ability to set any color space as a texture, and render anywhere. Things potentially useful in PSX emulation.

Like I said previously, this largely isn't about hardware support. This is about API support. I'm sure that most video accelerator/video card hardware can handle working as the PSX GPU does.

And, this also isn't about "2D effects vs. 3D effects".. nor is OGL 2.0 simply "bringing OGL up to D3D".. hrrm.

- Exo

[lu_zero]

OpenGL2 draft is about 200% more than a D3D ...
I hope to get SDL2+OpenGL2 within 9months