Go Back   Hardware Canucks > HARDWARE > Video Cards

    
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old November 1, 2008, 11:10 AM
sswilson's Avatar
Moderator
F@H
 
Join Date: Dec 2006
Location: Moncton NB
Posts: 14,416

My System Specs

Default Looking for a good primer on vid card settings & display issues

Ok, finally going to take the plunge and try to expand my knowledge of vid card settings/issues so I'm looking for a decent on-line explaination of the different settings, what they do, as well as issues such as "tearing". I've never been a heavy FPS gamer, so have pretty well stuck with whatever settings the game gives me, although I have mucked about a bit with forcing settings like AA in the drivers.

I'm trying my google skills ATM, but if somebody has a good bookmark handy I'd appreciate it.

What I'm mainly interested in is a site with pictures of the various issues that can be encounted, with a description of what can be done to fix them.

Thanks in advance.
__________________
MSI Z87I Gaming AC / i5 4670K / 2X 4G Gskill 1866 DDR3 / XFX XTR 750 / EVGA GTX 680 SC+ 2GB / Intel DC S3700 200G / random 160G Sata HDD
Inwin 904 / Swiftech MCP655-b / Alphacool NexXxos XT45 120 Rad / 2X Scythe GT AP-15 / EK Supreme HF / Dell UltraSharp U2412M

Asrock AM1H-ITX / AM1 Athlon 5350 / 2X4G Gskill PC3-14900 / Intel 6235 Wi-Fi / 90W Targus Power Brick / 320G Seagate Momentus / Mini-Box M350 / 1X 22" Dell IPS / 1X 22" HP
Reply With Quote
  #2 (permalink)  
Old November 1, 2008, 11:18 AM
"Quote This..."
F@H
 
Join Date: Nov 2007
Location: Hell
Posts: 3,828
Default

Try this, along with the 'see also' topics.

3D computer graphics - Wikipedia, the free encyclopedia

I am a 3d programmer, so if you have any specific questions ask away.
Reply With Quote
  #3 (permalink)  
Old November 1, 2008, 11:27 AM
sswilson's Avatar
Moderator
F@H
 
Join Date: Dec 2006
Location: Moncton NB
Posts: 14,416

My System Specs

Default

Thanks, I had a quick look at Wikipedia, but of course the subject matter is pretty broad. :)

The specific issue I'm looking for (other than needing to better inform myself on general terms) is the screen having a horizontal line (or more than one) which seems to split the screen a bit. I was wondering if the Vsync was the setting I should be looking at for that.
__________________
MSI Z87I Gaming AC / i5 4670K / 2X 4G Gskill 1866 DDR3 / XFX XTR 750 / EVGA GTX 680 SC+ 2GB / Intel DC S3700 200G / random 160G Sata HDD
Inwin 904 / Swiftech MCP655-b / Alphacool NexXxos XT45 120 Rad / 2X Scythe GT AP-15 / EK Supreme HF / Dell UltraSharp U2412M

Asrock AM1H-ITX / AM1 Athlon 5350 / 2X4G Gskill PC3-14900 / Intel 6235 Wi-Fi / 90W Targus Power Brick / 320G Seagate Momentus / Mini-Box M350 / 1X 22" Dell IPS / 1X 22" HP
Reply With Quote
  #4 (permalink)  
Old November 1, 2008, 11:43 AM
"Quote This..."
F@H
 
Join Date: Nov 2007
Location: Hell
Posts: 3,828
Default

Yes, that is called tearing.

Your vid card has a frame buffer, a section of the vid card memory holding the individual frame image. Once an individual frame has been fully processed it gets written to that frame buffer. your vid cards framerate is how many times per second it is writing completed frames into that memory.

Your monitor does not interact with your vid card other than to read from this frame buffer every time it does a refresh (refresh rate). Tearing occurs whenever your vid card reads a frame that is in the process of being overwritten with a newer frame. This means it is out of sync. vsync is nothing more than matching your vid cards output with the refresh rate of your monitor ensuring that no partially written frames get read.
Reply With Quote
  #5 (permalink)  
Old November 1, 2008, 11:48 AM
sswilson's Avatar
Moderator
F@H
 
Join Date: Dec 2006
Location: Moncton NB
Posts: 14,416

My System Specs

Default

Ok, then since my LCD monitor has a maximum refresh of 60, should I force this on or off to try to fix the tearing?
__________________
MSI Z87I Gaming AC / i5 4670K / 2X 4G Gskill 1866 DDR3 / XFX XTR 750 / EVGA GTX 680 SC+ 2GB / Intel DC S3700 200G / random 160G Sata HDD
Inwin 904 / Swiftech MCP655-b / Alphacool NexXxos XT45 120 Rad / 2X Scythe GT AP-15 / EK Supreme HF / Dell UltraSharp U2412M

Asrock AM1H-ITX / AM1 Athlon 5350 / 2X4G Gskill PC3-14900 / Intel 6235 Wi-Fi / 90W Targus Power Brick / 320G Seagate Momentus / Mini-Box M350 / 1X 22" Dell IPS / 1X 22" HP
Reply With Quote
  #6 (permalink)  
Old November 1, 2008, 11:55 AM
"Quote This..."
F@H
 
Join Date: Nov 2007
Location: Hell
Posts: 3,828
Default

To me it depends on the game and the average framerate you are getting.

Some dumb assed games will drop your framerate to 30 as soon as it dips below 60. Very poor vsync. Games like unreal 3 engine based, FC2 and fallout will disconnect vsync when it hits 59 or lower as you will not get tearing anyhow. try it and see.
Reply With Quote
  #7 (permalink)  
Old November 2, 2008, 09:21 AM
Top Prospect
 
Join Date: Nov 2008
Location: Richmond, BC
Posts: 164

My System Specs

Default

yeah tearing genreally only happens in FPS but sometimes do happen in other types of games teaing happens when your card is rendering the game too fast.... Generally games generate frames in lines, so when your card renders over the line twice is creates a tear Vertical Sync prevents this by lowering the speed of FPS of your card generates. But as Squeetard said some games screw up on this option.
Reply With Quote
Reply


Thread Tools
Display Modes