Re: [stella] 2600 emulators vs. MAME

Subject: Re: [stella] 2600 emulators vs. MAME
From: Stephen Anthony <stephena@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 17 May 2004 19:20:26 -0230
On May 17, 2004 06:52 pm, Albert Yarusso wrote:
> Hello,
> On May 17, 2004, at 1:08 PM, Manuel Rotschkar wrote:
> > Look at the "bars" in the screenshot Stephen just posted. It looks
> > more like "real VCS" to me then any other emulation trick I know,
> > scanline effects and and phosphor emulation inclusive.
> I don't agree, it just looks blurry to me as a result of the bilinear
> filtering.  NTSC and PAL televisions "blur" pixels due to their
> analog nature, but good s-video output will net you a better result
> than the Pressure Cooker bilinear image that Stephen posted.

I think this is a case where some people will like it, and others won't.  
Personally, I don't use the bilinear filtering option either.  I just 
added it since it only took a few lines of code.

My real reason for using OpenGL was the alpha-blending, and more 
importantly, the aspect ratio.  I think everyone can agree that picture 
1 looks a lot more authentic than picture 3 (which is way too wide).

> I much prefer the pixel-accurate rendering we've come to know and
> love.  In my opinion I'd rather have a pixel-perfect image than
> simulate a crappy CRT image.

I tend to agree, since I like the authentic look over everything else.  
Besides, most people remember their Atari experience differently.  
Whether they were using crappy machines (with bad power supplies) or 
crappy TV's, it's next to impossible to re-create it :)

> To each his own, of course, and I'm not saying the bilinear filtering
> option shouldn't be available and it would be useful for some displays
> (LCDs that don't have this ability built-in, for instance), but it's
> not something I'd normally use.

Me either.  But it can be (de)activated while the emulation is running, 
and it was so cheap to add, so maybe some people will like it.

PS: If I could get the &*&$# sound problems fixed in Stella, this is the 
type of stuff I really want to work on; filtering modes and in-game 
GUI's.  But the default, no-frills, pixel-perfect mode will always be 

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