Is it possible to disable dithering in PS1 games using codes?

You know that annoying dithering effect which was back in the days not a huge factor due to bad image quality thanks to composite cables. But nowadays using rgb or component cables it makes the effect more visable and annoying:



It is possible to disbale that effect on original hardware using codes?

 

Got bigger preview by any chance?

 

Sorry here is another example of the dithering effect:

 

I can't quite see what you're talking about, it looks like a regular PS1 game to me.

 

He's talking about this:



See the pattern with the colors? This is dithering.


Also to reply, I don't think this is possible because the PS1 uses a 16bit frame buffer.
But probably someone with waaaayy more knowledge than me can point the limitations of the system for you and why it can't be done.

Also just wanted to point the curious fact that you want to remove it and I was hopping someone could bring it to PC emulation.

 

Yep, I am talking about the small squares/pixels filter which are not a part of the polygon graphics:

 

TMK, there's no 'filter' on the PSX VRAM which does that natively.
It's not like the N64 which has a built in anti-aliasing.
Are these images from an emulator's VRAM or is it going out via a PSX RCA into a capture card?

 

There is one bit in the drawing structures that can disable dithering, which I is indeed possible to suppress via cheat codes.

 

Gemini

That sounds interisting. So how can i find that bit/cheatcode? ^^ Try&Error? Anyone who tried to find it?

 

You need to find where it populates the DR_DRAW structures used. Set the dithering attribute to 0 and most of it should go away.

 

Is this theoretically possible through hex-editing the game executable, thus making the change permanent? Also, can you recommend any games to test?

 

Most likely doable, since the dither value is set to 1 to enable it. Change that to 0 wherever the game sets it and it's permanent. There may be a few more cases where it changes internal resolution and settings, but that's most likely related to other parts of a game.