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physx and dx11

W

weegie

n00b
Joined
May 5, 2006
Messages
39
I've been meaning to upgrade my graphics for a while now, and i came up with the plan to get a cheap, but good board now, then when DX11 comes out, buy 2 of the big cards and downgrade the prev card to a physx card.

However, I occurred to me that this might have an affect, using a dx10 card to produce physx for dx11 games.

so, do you think i could be right, and you need to have a dx11 card for dx11-based physx, or would you get away with using a dx10 card?
 
i thought that would be the most likely case. but i figured i would check, seeing as Nvidia Physx has only been around for DX10 cards, I thought there may be some issues with mixing the hardware. but seeing as dx11 isn't out yet, i suppose we wont find any possible issues until its released
 
weegie said:
i thought that would be the most likely case. but i figured i would check, seeing as Nvidia Physx has only been around for DX10 cards, I thought there may be some issues with mixing the hardware. but seeing as dx11 isn't out yet, i suppose we wont find any possible issues until its released
Click to expand...


DX11 is no bigger "upgrade" than DX10.1 was to DX10...
 
Argument 1: Physx runs on CUDA. CUDA runs on the current architecture. The current architecture will run in DX10 mode even if DX11 is present on the system.

Argument 2: Physx runs on DX10 cards that are installed on a system that only has DX9c present.

Argument 3: The DX11 API is not a massive leap from DX10.1, which is in turn not a massive leap from DX10. They all utilize the same graphics architecture base.

There won't be any issues.
 
Atech said:
DX11 is no bigger "upgrade" than DX10.1 was to DX10...
Click to expand...

Why don't you do some more research on DX11 first before spouting off? There are several major improvements to the way things are done. Multithreaded rendering, compute shaders, Tesselation, and simpler, cleaner ways of writing code will all contribute to better looking, faster running games.
 
scojer said:
So will a 260 216 run dx11?
Click to expand...

No, it's DX10 hardware.

And PhysX & DX (D3D) are indeed in no way related. That's like expecting the DX support of a card to affect the OpenGL support.

Also, DX11 is indeed no big upgrade over DX10 and 10.1. DX10 was a rewrite of DX9 to fit into the WDDM driver model of Vista. It did add a few shortcuts for particular effects, but didn't fundamentally change anything. Same for 10.1 which added a few more shortcuts. DX11 adds hardware tesselation (in OpenGL since the dawn of time), programmable shaders (GLSL anyone?) and better multi-threading support (I'd love to see what this really means). It basically catches up with OpenGL 2.x here, but it's a nice evolutionary upgrade for devs, I guess. End-users should see no difference.
 
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