G80 bugs exposed

Ace Pace · Post by **Ace Pace** » 2007-03-31 06:26pm

Right after the G80 was taped out, NVIDIA discovered a bug in the vertex shader that causes the GPU to generate slightly incorrect geometry transformation data. The difference was minimal enough to escape attention but it was significant enough to render a scene incorrectly.

Now, what's the big deal about a slightly incorrect scene? After all, you can't even tell the difference between 2xAA and 4xAA. What would a slightly different scene matter when you are zipping along at 60+ fps? Well, that's what YOU think.

Here's the bummer. What it really means is that objects can be rendered off to one side. For FPS gamers, this can cause shots aimed at those objects (like your opponents) to miss when they should really hit. In RTS games, it may cause you to click on the wrong unit or send your units to attack a different target. So, yeah, you can now blame your poor gaming skills on a bug.

MKSheppard · Post by **MKSheppard** » 2007-03-31 08:04pm

So you're wong now, and early too

Vendetta · Post by **Vendetta** » 2007-03-31 08:14pm

Not where he is.

muse · Post by **muse** » 2007-03-31 08:15pm

MKSheppard wrote:So you're wong now, and early too

Oh god that was bad...

MKSheppard · Post by **MKSheppard** » 2007-03-31 08:31pm

No I'm serious:

He even has wong's rotating signature.

aerius · Post by **aerius** » 2007-03-31 08:39pm

Ace is wong, but he's not Wong.

J · Post by J » 2007-03-31 08:41pm

Ok, that's just horrible. Stop it with the lame puns already! For the love of chocolate Jesus!

nickolay1 · Post by **nickolay1** » 2007-04-01 01:50am

Such a bug seems ridiculous. It's highly unlikely that "slightly incorrect geometry transformation data" would result only in objects being rendered off to the side.

Chris OFarrell · Post by **Chris OFarrell** » 2007-04-01 02:00am

nickolay1 wrote:Such a bug seems ridiculous. It's highly unlikely that "slightly incorrect geometry transformation data" would result only in objects being rendered off to the side.

*cough*

And todays date is....

Arrow · Post by **Arrow** » 2007-04-01 08:11am

And if this bug actually existed, I'd have gone on a nuke bitch rant by now. Remember, I have two G80s.

Ace Pace · Post by **Ace Pace** » 2007-04-01 08:23am

It'd be totally awesome if it was actully real.

Arrow · Post by **Arrow** » 2007-04-01 08:36am

Ace Pace wrote:It'd be totally awesome if it was actully real.

No, it wouldn't, because I'd probably be in jail for picking of Nvidia execs.

Ace Pace · Post by **Ace Pace** » 2007-04-01 09:09am

And i'd steal your computer, therfor, perfect.