0.6.0 SDK Integration for 4.8?

druidsbane · May 14, 2015, 7:28pm

Was released and pulled just a short while ago. There is an Oculus branch supporting 0.6.0. Any chance this will make the cut for 4.8? I know 0.5 support was just added in preview 2 but if the 0.6 SDK is released finally later today or tomorrow it would be great for the engine to support the latest SDK.

MAGtechnologies · May 14, 2015, 9:24pm

Ditto With VR now announced for OR, devs out there would love to know that an update for U4 would be best suited for relevant updates. I am sure you guys must be working together and release your SDKs accordingly but its good for us devs to have some faith in a new build which we may be using for some time

druidsbane · May 14, 2015, 9:53pm

That was fast! https://github.com/EpicGames/UnrealEngine/commit/bf86f78d7b67c77bfe33556c3511907347745844

I really hope this makes it for 4.8

SaviorNT · May 14, 2015, 10:50pm

Tasty treats are tasty. Make it happen Epic

Opamp77 · May 15, 2015, 2:00am

Highly unlikely in my opinion.
UE4’s binary releases have a habit of being 1 step behind OVR’s.

But we can live in hope

druidsbane · May 15, 2015, 1:49pm

I think we all hoped enough: https://github.com/EpicGames/UnrealEngine/commit/b17e9c063912fe27baa3a78dcd65020052abe017 Looks like it will be in the next preview! (I hope :))

Opamp77 · May 16, 2015, 8:00pm

I just compiled myself. It looks like they got the new API working but with none of the goodies.

Positional Timewarp is yet to be implemented.

bQueueAheadEnabled is currently an unused variable in settings.

And I dont think layering is implemented either.

There’s a fair bit of work there…

Fingers crossed.

Edit* What is quite cool are some of the new console commands check out the mirroring options.
Finally I can check on-screen stats without giving myself a headache!

Console commands

Stereo/HMD Configuration

stereo on|off|toggle Stereo mode on/off
stereo hmd Turns stereo on and re-direct rendering to the Rift.
hmd enable|disable Completely disables or re-enables HMD
hmd pd 0.8 Sets pixel density in the center (default is 1.0).
hmd sp 125 Overrides default screenpercentage for stereo mode. Deprecated, use ‘hmd pd xxx’ instead.
hmd sp reset Resets to original r.ScreenPercentage value. Deprecated, use ‘hmd pd 1’ instead.
hmd mirror [on|off|toggle] Enables/disables/toggles mirroring in a window (for “Application Only” mode only).
hmd mirror 800x600 Sets mirror window dimension (for Direct mode only).
hmd mirror mode 0|1|2 Sets mirror window mode: 0 - standard stereo distorted view, 1 - stereo undistorted view, 2 - mono view (a single eye)
stereo e=0.064 Eye distance (m). Use ‘stereo reset’ to restore original value.
stereo w2m=100 Overrides default worldunits-to-meters scale. Use ‘stereo reset’ to restore original value.
stereo ncp=10 fcp=10000 Overrides near clipping and/or far clipping planes for stereo rendering (in cm). Use ‘stereo reset’ to restore original value.
stereo show Shows current ipd and head model offset
stereo reset Resets stereo settings

hmdpos on|off Enables/disables positional tracking.
hmdpos reset Resets forward direction and ‘zero’ position
hmdpos reset -37 Resets forward direction and apply yaw rotation (in degrees) and ‘zero’ position
hmdpos show Shows status of positional tracking.
hmdpos enforce Toggles positional tracking even if not in stereo (for testing purposes).

Stereo/HMD Internals

hmdmag on|off Turns magnetometer on/off
hmdmag show Shows state of magnetometer

Misc

hmd stats Shows HMD-related stats.
hmd grid Toggles lens-centered grid.
hmddbg showcamera [off | toggle] Draws a tracking camera frustum in the game’s world.
hmddbg cubes [on | off | toggle] Draws a ‘sea of cubes’ over the existing scene.

hmd updateongt on|off Turns on/off update-on-gamethread mode (for debugging). On by default.
hmd updateonrt on|off Turns on/off update-on-renderthread mode for lower latency. On by default.
hmdversion Prints Oculus SDK version used and Oculus Plugin info
uncapfps Uncaps FPS (allows FPS > 62); to restore cap - “set Engine bSmoothFrameRate 1”

anonymous_user_c0687f281 · June 23, 2015, 1:27pm

Hi there,

how to set bQueueAheadEnabled to TRUE? Is late-latching finally implemented in UE4?

BTW: hmddbg showcamera on/off crashes UE4 if exited while active

anon44224379 · June 25, 2015, 8:13pm

Now that 4.8 has dropped can someone confirm for me that the 0.6.0 SDK is usable and implemented. I haven’t done VR work in awhile and last I checked the official docs said that 0.4.2 is the officially supported version. Thanks!

anonymous_user_c0687f281 · June 25, 2015, 9:33pm

Currently I can only warn you. VR is in 4.8 basically broken (4.8.1, too):

OVR SDK 0.6 is implemented, but only the very basics (no late latching, no layer support etc.)

anon44224379 · June 25, 2015, 9:58pm

Thanks for the heads up!

Opamp77 · June 25, 2015, 10:38pm

Plus this https://answers.unrealengine.com/questions/246763/bug-changing-screenpercentage-with-certain-mirror.html

And this https://answers.unrealengine.com/questions/242832/vr-console-command-hmd-vsync-not-functioning-with.html .

Is’nt working with the cutting edge fun

BTW the console command for queue ahead is ‘HMD QAHEAD’ but as you guessed does nothing ATM.

anonymous_user_c0687f281 · June 26, 2015, 8:20pm

Thanks. Hmm, this has no measureable effect on UE 4.8 for me (GPU load still maxes out at about 50-70%). Or is this just not supported in the engine?

Edit: Hmm, maybe that wasn’t so correct. I got a remarkable speed boost yesterday.

Oculus Runtime 0.6.0.1
Unreal 4.8.1
NVidia drivers 350.12

The strange thing: It doesn’t matter if I activate Queue-ahead in UE4 or not, GPU still maxes out at about 65% regardless if the target framerate was met or not (will get better when they implement late-latching).