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View Full Version : Problem with interlacing artifacts in GTS:SA


Viper2026
6th November 2004, 05:22
I recently got a new TV, a 20 in. flat screen CRT from panasonic. In GTA:San Andreas, when moving quickly, I can see the scanlines/interlacing in stuff such as my character or traffic light poles (if anyone knows the basics of how CRT TVs work then this image will make sense).

http://home.comcast.net/~viper2026/interlace.jpg
the "normal" image is on the left, with what I'm getting on the right (it's only a rough interpretation, but you get the idea)

I'm using the normal RCA cables that come with PS2

I've done some research and found that it this has to do with the de-interlace filter on my TV not being very good, and showing artifacts. I'm going to take this TV back and get a new one, my question is what kind of a TV should I get if it will be primarily for video games and I don't want it to do that nasty interlacing thing?

I'm not looking to buy an LCD or anything...

Mug Funky
6th November 2004, 15:45
would this be a 100Hz progressive TV? (it'd be 120Hz in NTSC land, i suppose). if it isn't, then what you're seeing is just slightly slow phosphors and good focus. monitoring TVs look the same if you're close enough to them (ow,ow,ow,ow).

can your game be made to output progressive?

Viper2026
6th November 2004, 20:33
I don't know if it's progressive (it has component on the back), it's NTSC and flat screen, the pixels look very large, and the refresh rate seems lower than 120Hz. (I do sit quite close to it :D )

Mug Funky
7th November 2004, 15:48
aaah. then there's probably not much problem. just sit back further :)

yeah, the lines would be huge in NTSC land. it's like a trade-off between detail and flicker. i start watching an NTSC title and am horrified by the jumping scanlines, but when i switch back to PAL i'm horrified by the slow refresh rate.

sitting back helps both issues, incidentally.

Sycho
7th November 2004, 20:31
Originally posted by Viper2026
I don't know if it's progressive (it has component on the back), it's NTSC and flat screen, the pixels look very large, and the refresh rate seems lower than 120Hz. (I do sit quite close to it :D )
no such thing as 120Hz in NTSC land, exsept for my computer monitor, all anagols are 60 fields HDTV is 60 frames and some pioneer plasmas are up 72 frames

Viper2026
8th November 2004, 00:32
Interestingly, I went to my friend's house today, and he has a big 32in. or something flat screen CRT by sony, and with the same playstation2, there were no lines. I'm thinking it's just I didn't get a good TV...

Atamido
8th November 2004, 08:24
Originally posted by Sycho
no such thing as 120Hz in NTSC land, exsept for my computer monitor, all anagols are 60 fields HDTV is 60 frames and some pioneer plasmas are up 72 frames 60Hz interlaced is similar to 120Hz progressive at half the vertical resolution. I wouldn't call it 120Hz, but it is probably close enough not to matter.

The refresh rate that HDTV displays work at is not fixed by any means. As digital HDTV broadcasts occur at many different rates from 24Hz to 60Hz, it is reasonable to assume that HDTV displays could work at many different rates for optimal efficiency.

Mug Funky
8th November 2004, 15:50
hmmm... interesting. Loewe have been making 100Hz prog CRTs for about 10 years, if not longer. i figured an NTSC equivalent existed. i guess not.

i'd settle for something that doesn't make that annoying "whiiiiiiiiiiiiiiiiii" noise.

Viper2026
8th November 2004, 16:30
Yeah, this TV doesn't make that noise, so I assumed it'd be decent. I guess I was wrong. It has very large pixels anyway, and the black lines between them are highly visible. I also notice glitches when it tries to display large areas of solid bright color.