Gameworks in War Thunder Tanks

[Lord_Karango17]

http://www.overclock3d.net/articles/gpu_displays/nvidia_gameworks_comes_to_war_thunder/1

 

The engine appears to only be single threaded for me, so somehow they managed to get gameworks features in there...

 

Looking forwards to see how this plays out, but my fps is bad enough due to the game only using one core, so I'll likely leave it off...

 

Q&A on the WT forums:

http://forum.warthunder.com/index.php?/topic/269416-development-dagor-engine-40/page-9#entry5234982

[xAcid9]

PBR is gamework thing now?

[Lord_Karango17]

PBR is gamework thing now?

appears so... 

 

Didn't know simple damage was gameworks either...

[zMeul]

...

you should also add this Q&A session: http://forum.warthunder.com/index.php?/topic/269416-development-dagor-engine-40/page-9#entry5234982

 

Q: What about DX12 rendering path?

AntonYudintsev, on 02 Oct 2015 - 5:16 PM, said: Not now, later.

Q: And we all know how well that turned out with Games like The Witcher 3, but I digress. Hoping the devs would optimise the Gameworks to support all cards, including the Intel HD graphics, not just be available to players.

AntonYudintsev, on 02 Oct 2015 - 5:22 PM, said:

We spend a lot of time (more than a year) optimizing rendering.

1) Destruction is CPU only thing, the whole rendering pipeline is done completely in Dagor 4.0

2) Although for Waveworks NVIDIA have their own rendering code, we don't use it, and rely completely on our own Dagor 4.0 implementation. May be later it will be turned on for NVIDIA GPUs, but for now it is one-for-all inhouse implementation.

I guess there won't be much impact with AMD cards.

AntonYudintsev, on 02 Oct 2015 - 5:35 PM, said:

Frankly, AMD is not good in communicating with developers. We have very tight relationship with NVIDIA, they fix drivers and give us a lot of insights on how their HW is working - but neither of other two vendors do the same. There is no even working contact from AMD, and the only answer from Intel driver engineer about bug in their drivers we ever got was "I am too busy to look into that".

Sometimes they still fix or optimize their drivers for our game, but it is never happening with communicating with us, and always is the same surprise for us as it is for players.

So, it is likely AMD would be under-performing with Dagor4.0 as it was with Dagor3.0 _on PC_, until they will again release optimized version of drivers for our game (if ever).

In the same time, on PlayStation4 we have AMD GPU and excellent tools (much better than anything we have on PC!) and so, frankly, we are mostly optimizing for PS4 GCN (which is AMD chip). However, most of the issues on PC are drivers.

So issues on optimisations with AMD cards are due to communications issues, so I guess it was wrong for me to jump the gun and complain about the dev team's optimisations with AMD card with the Gameworks. I apologise for that. So if AMD had more communications with WT's dev team, you guys can create even better optimisations for AMD's cards?

AntonYudintsev, on 02 Oct 2015 - 6:02 PM, said:

As I said - it by chance happens so, that we are already optimizing for GCN (AMD GPU) more, than for anything else - simply because we have tools for PS4, which we don't have for PC. And so do all other console developers, btw.

But optimizing for GPU itself, and optimizing for PC GPU where we have API + drivers is two different things.

I don't know if AMD even have dev tech team at all, but I am sure we don't have any contacts with them. I made couple of bug reports in AMD drivers to Graham Sellers (AMD opengl guy) twitter!

So, in a result, for last three years, NVIDIA GPU show better results in our games than AMD GPU - and there was no even Gameworks which is looking so suspicious to AMD owners (although I can assure you, we now have only in-house rendering pipleine for everything)!

We have tens(!) of workarounds in our engine code, which looks like "if it is AMD card and driver version is ... than ..."

There is no even damn email where we can send such info/report bug.

Also, there is such email for Intel, but they don't respond

We never did anything like "special slowdown path for AMD", and I never heard of developers which had.

But NVIDIA guys are really great in communicating with developers and helping them, and I think it may be and explanation why NVIDIA have better performance in many games and almost three times bigger PC market share than AMD.

[Dabombinable]

1. Nerdgasm, my GTX 650ti OC will be seeing a lot more use as a PhysX card.

2. Those who say Gameworks is a dead horse, devs should use Havok over PhysX etc-bugger off. Devs can't work with AMD when they are doing what Nvidia used to do-https://www.youtube.com/watch?v=IVpOyKCNZYw

[Gunjob]

snip

 

 Might as well include this if you're just going to cherry pick.

 

 

Q: AMD are very responsive, HELL I have been JUST talking to and AMD driver staff just tonight about open driver issue under Linux. You are probably going through the wrong channels or aren't contacting the correct way. AMD respond faster via forums/bugzilla etc then email because they receive so many of those its hard to keep track.

A: May be..I wish there would be an easy way to correctly contact them!

They're going through the wrong channels. 

[Lord_Karango17]

@zMeul is there any word on how the engine uses the cpu?

 

I have had so many issues with the game, on both my desktop, and laptop, where only one core is being used, and it would be so nice if that was fixed with this update.

[zMeul]

@zMeul is there any word on how the engine uses the cpu?

 

I have had so many issues with the game, on both my desktop, and laptop, where only one core is being used, and it would be so nice if that was fixed with this update.

can't answer that, the only thing to do is wait ... in the meantime, sacrifice a goat or two to the CPU usage god

[Castdeath97]

What is the point for upgrading the graphics engine if scumbags will turn the graphics down to remove foliage so that they see us through cover, come on Gaijin!

[Castdeath97]

Also Gaijin what is the point of censoring everything you don't agree with?

 

 

 

[ivan134]

1. Nerdgasm, my GTX 650ti OC will be seeing a lot more use as a PhysX card.

2. Those who say Gameworks is a dead horse, devs should use Havok over PhysX etc-bugger off. Devs can't work with AMD when they are doing what Nvidia used to do-https://www.youtube.com/watch?v=IVpOyKCNZYw

Choosing not to cooperate and not having the resources to are very different things. AMD barely has their shit together so what makes you think they have the resources to give support to every small dev out there? They have to be strategic in choosing who they work with. A collaboration with Square Enix will do more for AMD's bottom line than a dev of a niche game. Sorry, but this is a false equivalence. I'm also not sure how you think using a black box libraries that doesn't let the competitor optimize until months after the game is out is the right step from not cooperating with devs.

[xAcid9]

Also Gaijin what is the point of censoring everything you don't agree with?

 

-snip-

 

I wonder what video that guy posted.

[Lord_Karango17]

I wonder what video that guy posted.

It is not for us mere mortals to know...

[Castdeath97]

I wonder what video that guy posted.

Either one of jingle's video's criticising how Gaijin handles things or one of bis18marck70 videos well.

[Dabombinable]

Either one of jingle's video's criticising how Gaijin handles things or one of bis18marck70 videos well.

Probably.