Download Unreal Engine 4 Elemental Tech Demo DX12

Why does it request net access?

Windows Firewall pops up asking to let it through

 

Edit: Oh, ones a video, the others the download link.

 

Ironically, it runs much better under DX11 than DX12 for me. I guess the technology is still immature.

 

I'm not really impressed.

Spoiler

Spoiler

 

Did you hit Tilde and type: setres 1920x1080

Or whatever your rez is?

 

yeah

 

Looks bad quality compared to mine, is that the DX12 or 11 one?

 

it's the dx12 and no vsync one.

 

Change the shortcut target to 11 instead of 12, see if it improves, DX12 was worse performing than 11 anyway

 

The performance was fine. It's the visuals I wasn't impressed with.

 

Yea, I was getting corruption, multi colours flickering, and weird lens flare with the DX12 in fullscreen - DX11 one was spot on and about 40% better performance

 

Some textures look horrible. Like XBox 360 textures.

 

Anyone looked at CPU utilization to see if DX12 is actually working properly?

 

Unreal Engine 4 is certainly capable of much better than what the Elemental demo provides that's for sure, it's a few years old now afterall.

Epic did mention that DX12 would be available from version 4.9 of UE4 which is still being worked on.

The new Unreal Tournament will be using it 4.9/DX12 as soon as it's available.

 

Cut & Pasted from my post in the other thread (bold is related to your question):

I think you can run the benchmark in DX11 (if you run the main application icon), or in DX12 if you run the link marked "DX12". It runs OK on my laptop - I got an average of 40fps as recorded by FRAPS using DX11, with minimum fps in the high 20's. Running the DX12 version seemed to be the same fps (FRAPS wouldn't run with DX12), except overall power draw was probably on average 5W less as measured by my Kill-A-Watt - I think this was because I was getting 99% constant GPU utilisation during DX11, and during DX12 I was getting slightly less at 97% constant GPU utilisation, CPU utilisation seemed to be similar between the two versions strangely, although did look that DX12 CPU utilisation only very slightly more evenly distributed between cores. VRAM usage on DX12 was 700MB higher than DX11. Both DX11 & DX12 versions looked the same, so I don't think they're running different settings. All a bit MEH, but happy that the DX12 demo ran well on my laptop regardless!

 

Maybe it will be possible to combine "A Boy and His Kite" with UE4.9 once it's out of testing, should be a better test.
(And will allow UE4.9 to mature a bit more and possibly improve it's D3D12 implementation too.)

Downside to that is that the showcase version of that particular demo is a full 50 GB.
(But it will allow the user to combine the showcase with the latest engine version and test new features that way.)

 

This demo is a terrible example of UE4. The new unreal tournament pre alpha has much much better graphic and it runs 3 times better than this mess, and its an actual game where stuff happens, not just a demo, where nothing is happening.

 

When i start the .exe i have that too and vsync is, though flagged on in nVidia settings, acsually off (110 fps tops)
But when i start the shortcut (DX12 NO VSYNC) it looks good and very smooth, no flickering, but vsync is on (60 fps tops) .. and way smoother than just the .exe

 

DX12 is awful in this...stuttering and poor FPS.