aaarrrrghh! Stop screen tearing!

  • Thread starter Thread starter jonny_goddard
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That´s it. Now there is someone who cleaned the hdmi cable and the "problem" was fixed?

I´m getting out of this thread. There are some things that´s better not to know... bye...
 
Centura
No thanks. V-Sync is awful. It adds latency and that is not something you want, esp. in a racing game. They would have to add Triple Buffering if anything, but that's very expensive...
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If we assume that GT5 is rendering between 60 and 30 frames per second without sync, then the worst case added latency with V-sync would be 17ms when a frame is dropped. I doubt this would make any perceivable difference, especially since it already is there when the framerate drop to 30fps. In both cases of no V-sync and plain V-sync there will be control rate jitter. If there was a cap at the worst case frame rate, there would be no such jitter (I'm not suggesting a cap).

BTW, with triple buffering control latency would be even worse, so that's not a good solution. The solution would be to simply let users choose whether they want V-sync or not.

I really dislike the tearing. It negatively affects the suspension of disbelief and reduces the immersion factor, literally being a "a tear in (the virtual) reality". I'm allergic to that :p

DJ
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DrJustice
If we assume that GT5 is rendering between 60 and 30 frames per second without sync, then the worst case added latency with V-sync would be 17ms when a frame is dropped. I doubt this would make any perceivable difference, especially since it already is there when the framerate drop to 30fps. In both cases of no V-sync and plain V-sync there will be control rate jitter. If there was a cap at the worst case frame rate, there would be no such jitter (I'm not suggesting a cap).

BTW, with triple buffering control latency would be even worse, so that's not a good solution. The solution would be to simply let users choose whether they want V-sync or not.

I really dislike the tearing. It negatively affects the suspension of disbelief and reduces the immersion factor, literally being a "a tear in (the virtual) reality". I'm allergic to that :p

DJ
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A proper implementation of triple buffering doesn't add latency.

Enjoy: http://www.anandtech.com/show/2794/1
 
if you play a lot of PC games you will notice it right away what it's like. Literally speaking it's when the screen picture brakes apart. GT5 suffers a lot from it. If you enable V-sync in PC games it takes care of it, in GT5 though PD should take care of it. That's the truth.
 
HuskyGT
That´s it. Now there is someone who cleaned the hdmi cable and the "problem" was fixed?

I´m getting out of this thread. There are some things that´s better not to know... bye...
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lmao! Cleaning the HDMI cable had me in stitches, then you have people claiming it's us with dodgy TV's causing the issue and not the game!
 
Eucharist08
Screen tearing is your Display not your PS3 or GT5. Get a different TV or change the display settings.
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What...... I've already been told to buy a home cinema kit to turn a dyson into a v8.
What have I got to buy now.
 
HuskyGT
That´s it. Now there is someone who cleaned the hdmi cable and the "problem" was fixed?

I´m getting out of this thread. There are some things that´s better not to know... bye...
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Obviously he just didn't explain it well... it's not so much cleaning as straightening your cable.

You see over time all cables get bends and kinks in them, this is no problem for the 0's to get through but the 1's have sharp ends and corners and get stuck sideways sometimes. They cause a backup and once enough other 1's and 0's get piled up behind they push thorugh in a big chunk.

This is what causes screen tearing.

This is most apparent when making high speed turns because the momentum and angle of the 1's from the high speed turn causes them to get stuck more.

You should remember to straigten your HDMI cables every few days especially if you notice image artifacts.

Oh and make sure to get gold plated ones! Gold is shinier and will increase gamma and luminosity. I got some gold plated optical cables for my surround sound system and now not only are the bass and mids much clearer, everyone has a sexy Sean Connery accent!

Oh and slightly OT but if you want to make your computer run faster, download some more RAM here http://www.downloadmoreram.com/downloading.html

Don't bother downloading 4GB unless you have a 64 bit OS though!










;)
 
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seanchump
Before my PS3 was repaired I saw a lot of screen tearing.
Since it was reconditioned I think I've only noticed screen tear once.

Maybe this is a sign your graphics card is failing?? Back up your data dude
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sounds like ominous news for me. i've had the game running for almost 2 solid days. and no money for a slim.

but i guess i'll cross that bridge when i get to it :nervous::nervous:
 
what are you talking about? I will go my way further and imagine i didnt see this.. :) no problems for me.. maybe just some jagggies shadows, thats it for me.

ahhh I get it, maybe some people dont have good imagination.. I just dont see all this.. I imagine it and see what I want to see.. and it works just fine :)
 
Owen.C93
I found it worst on Top Gear TT, and when cars move across infront of you.
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for me thats the best track! weird. by bets its on my tv, its a samsung led 100hz 32inch. its not meant for gaming, rather a super clear picture on ordinary tv. thats my bet anyway.
 
I´ve heared about this problem but never noticed it... Also the framerate was always constant since I have the game... (since release day)... Never got any framerate drops... But I have the fat 40GB PS3, I´ve heared that the slim has problems with the framerate?
 
I'm the only one that never noticed any screen tearing in this 2 months of GT5?I have a new Sony Bravia.
 
^ It has nothing to do with the kind of TV or monitor you're using.

For those that don't know what tearing is or how it looks, I've made a mock up to illustrate it. What you see here is a single frame with a tear in it. The top half shows one buffer and the bottom half shows the next buffer. It's clearly visible in the grey, yellow and purple cars, the armco, the track and the A-pillar in the cockpit. If you're unlucky with the timing you might get a tear that moves up or down the screen, or flickers about, as successive buffers get switched in at bad moments - when this happens it can look to the eyes as if there are multiple tears in the picture.

With V-sync on, the buffers only get switched when the picture scan is at the start of the first (upper) line, and thus you get no tearing.

tearing.jpg


DJ
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Hm, that 720p tweak seems to solve the problem. That's the fastest method of solving this issue.

GT5 doesn't run constantly at 60 fps while in 1080p mode, that's why there's tearing. But in 720p it does, and since my TV's refresh rate is 60Hz, i get no more tearing.

At least that's how i see it. 720p mode is definitely worth a try.
 
DrJustice
No, tearing is in the game. Get your facts straight.

DJ
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Removed by Moderator. Screen tearing is when your monitor refresh rate cannot go as high as what the device you are using is putting out. Which is why you use VSync to set the max refresh rate to not go higher then what your display can handle.

This happens a lot when you get a great Video Card for your computer and its putting out like 160-200 FPS and your monitor can only handle 60-120 FPS and you get massive screen tearing.

You should get your facts straight.
 
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InSight
Screen tearing is only obvious in sharp turns, when the car quckly changes direction. But most of the time on straights it's not very noticable. Not a game killer for me, but it would be great if they'd fix it.

PC solves this issue with v-sync option.

Imagine a GT with vsync, 16x AA, 16x AF, 1080p @ 60fps :drool: If only...
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I'd be happy if they could just fix the damn shadows and add a little AA.
 
InSight
Hm, that 720p tweak seems to solve the problem. That's the fastest method of solving this issue.

GT5 doesn't run constantly at 60 fps while in 1080p mode, that's why there's tearing. But in 720p it does, and since my TV's refresh rate is 60Hz, i get no more tearing.

At least that's how i see it. 720p mode is definitely worth a try.
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You may get some perceived reduction of the effects of tearing with a higher framerate since objects in the picture moves less from frame to frame. However, tearing will still be there. It's purely a synchronization issue.

BTW, I've tried 720p and found that overall I prefer the image quality of 1080p, it's a tradeoff...

DJ
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Removed by Moderator.

Screen tearing is when your monitor refresh rate cannot go as high as what the device you are using is putting out.
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No, it's not, but with your attitude I'm not going to bother explaining (there are already explanations in this thread).

DJ
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Eucharist08
Removed by Moderator. Screen tearing is when your monitor refresh rate cannot go as high as what the device you are using is putting out. Which is why you use VSync to set the max refresh rate to not go higher then what your display can handle.

This happens a lot when you get a great Video Card for your computer and its putting out like 160-200 FPS and your monitor can only handle 60-120 FPS and you get massive screen tearing.

You should get your facts straight.
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It is you who should get his facts straight.

It has naff all to do with the display. It is inherent in the game and is highly annoying. They will never fix it, though.
 
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DrJustice
No, I'm not a retard (post reported BTW).


No, it's not, but with your attitude I'm not going to bother explaining (there are already explanations in this thread).

DJ
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Make sure you report yourself for giving false information when you don't have a clue what your talking about. You have no education on what you are talking about so quit giving false information and confusing these people asking for help. Because you are not helping anyone when you don't know what your talking about.
 
This is from Wikipedia

When vertical synchronization is in use, the frame rate of the rendering engine will exactly equal the monitor's refresh rate, if it was higher. Although this feature normally results in improved video quality, it is not without trade-offs in some cases. When one wishes to benchmark a video card or rendering engine, it is generally implied that the hardware and software render the display as fast as possible, without regard to monitor's capabilities or the resultant video tearing. Otherwise, the monitor and video card will throttle the benchmarking program, causing it to generate invalid results. Vertical synchronization is also known to cause input lag, which is most noticeable when playing video games.[1]

Vertical synchronization can also lead to artifacts in video and movie presentations, as they are generally recorded at somewhat low frame rates (usually 24 to 30 FPS). When such a movie is played on a monitor set for a typical 60 Hz refresh rate, the video player will miss the monitor's deadline fairly frequently, in addition to the interceding frames being displayed at a slightly higher rate than they were intended for, resulting in an effect similar to judder.

Video games, which have a wide variety of rendering engines, tend to benefit well from vertical synchronization, as a rendering engine is normally expected to build each frame in real time, based on whatever the engine's variables specify at the moment a frame is requested. However, because vertical synchronization causes input lag, it can interfere with games which require precise timing or fast reaction times.


Basically the same thing I was explaining in lamines terms.
 

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