Vulkan Is Now Official With API 1.0

kabel · February 21, 2016, 7:43pm

I wonder if Vulkan will be an experimental feature in 4.12:confused:

Lisyarich · February 22, 2016, 11:13am

As I saw from UE 4.9 sources, Vulkan is implemented couple of month ago, so I think, Epics may add it in 4.11

wardoctor1909 · February 22, 2016, 6:11pm

So vulkan is in 4.11 ready to go https://github.com/EpicGames/UnrealEngine/commit/62699087b2963c977b4e92cbc385877ce89f1cae but how do we get it working ??

anonymous_user_bcf66e2c · February 22, 2016, 11:30pm

Try adding -vulkan to the commandline, that looks to be the way

wardoctor1909 · February 22, 2016, 11:51pm

i tried and it doesnt work

wardoctor1909 · February 23, 2016, 12:43am

-VulkanRHI loads it

ioFlow_Studios · February 23, 2016, 9:45am

. .

Flakky · February 23, 2016, 4:35pm

Tried to launch 4.11 with -VulkanRHI parameter. But how do I check, if editor has launched with Vulkan?? And does 4.11 has it implemented?

ryan20fun · February 23, 2016, 4:50pm

I saw mention in one of the threads that I linked to that there is a specific driver you need to download to get Vulkan, Atleast for AMD GPU’s.

wardoctor1909 · February 23, 2016, 7:48pm

https://github.com/EpicGames/UnrealEngine/commit/release preview 6 is out of 4.11 with vulkan code inside

unrealCyborg · February 23, 2016, 8:58pm

Waiting for Vulkan 2.0

n00854180t · February 23, 2016, 11:20pm

Personally I’m not hyped for Vulkhan either, just relieved we’ll have an alternative to DX12 that doesn’t require Windows 10.

Matzenator · February 24, 2016, 2:55pm

Does the DX12 implementation currently do anything in UE4? Last time i checked it was still just experimental (at some point i thought, that my shortcut -dx12 thing didnt even work.

anonymous_user_bcf66e2c · February 24, 2016, 10:46pm

It does work, it does run in D3D12, but yes it still is experimental

masterneme · February 25, 2016, 3:15pm

Do you think Vulkan could help AMD getting in the game again vs Intel?

Datarecovery09 · February 25, 2016, 3:58pm

Depends on how Zen (AMDs new architecture, planned to hit the market end 2016/begin 2017) will do. Low level APIs like Vulkan and DX12 will most certainly help older or weaker CPUs, but it will take some time for new games that make actual use of them to come out.
Right now it seems like i3s and FXs will get a nice performance boost from DX12 and Vulkan (as can be seen in these new AotS benchmarks), but neither of those will be some kind of magic bullet. I guess we’ll get a lot more solid information once AotS, Fable Legends and Hitman are released.

Atm I can’t imagine why anyone would want to buy a new FX processor, but I’m really curious how Zen will be.

tupikp · February 25, 2016, 7:59pm

Wow, if only I knew this before I uninstall AMD Vulkan driver >.<" The AMD-Vulkan driver caused Sony Vegas to crash instantly during OpenCL initialization so I uninstalled the driver right away. Well, since AMD Vulkan driver is still in beta, I’ll just wait for the official release.

tupikp · March 2, 2016, 6:53am

Installed the new AMD Vulkan Beta 5 driver (Feb25 version), and launched UE4 (4.11 p6) editor with -VulkanRHI parameter, but couldn’t see whether Vulkan is activated or not, there’s no mention of Vulkan API at all in the log window. Maybe it’s not implemented yet in current versions of UE4? Or wrong parameter command?

sliter · March 2, 2016, 9:35am

Same thing here. AMD card too.

anonymous_user_bcf66e2c · March 2, 2016, 10:47am

It doesn’t work currently, the VulkanRHI module is not even in 4.11 p6. So running with -vulkanrhi actually doesn’t do anything, the actual command line will be -vulkan and it’ll work when they add the VulkanRHI module (There are even comments in the build.cs stating to uncomment when Vulkan is released).

Just for record, when vulkan does work, the output log should state which RHI its using.