3d issues in PD15

Kaido

Newbie Joined: Feb 13, 2011 14:17 Messages: 10 Offline

Solved by

Feb 18, 2018 14:28

Hi,

I am trying to produce 3d (side-by-side) content from Weeview SID (2880x1440, h264, mp4) to view in a Daydream headset with SkyBox app on Android.

I am getting mixed results.

First, when the 'source 3d format' is set to 'side by side', the produced video is a single frame, not side by side stereo. During editing, this could be acceptable, but not in production/outputting. During editing, the preview is horizontally stretched.

When project aspect ratio is 360 there appears to be no 3d output settings available ('Daydream 3d optimal' format would be welcome). 3D output settings become available when project aspect ratio (in Editing view) is not 360.

Second, the aspect ratios are restricted to 16:9, 9:16, 4:3 and 360. But my source and output should be 2:1.

Third, if I produce a 360 video, then h265 is not available. Only h264.

Fourth, if I produce h265 (in 16:9, no 360) then VLC does not play it properly (video artifacts), but Daydream/SkyBox on ZTE Axon 7 does play. I guess this is VLC's problem.

Fifth, and most frustrating, if a manage to produce a side-by-side output (h264, h265), the Skybox app stretches this horizontally beyond 1:1 aspect ratio. However, if I upload this to Youtube and view via normal Youtube app on Android, I get a 1:1 3D view (https://youtu.be/ylGLNv1W5Hc). However, as it is not Daydream formatted, on the Daydream headset with normal Youtube app, this is too much zoomed in and there is no 360. If I view this app on a Daydream headset with SkyBox app, there is 2x horizontal tretch. SkyBox app is needed to play a local file, this cannot be done on Daydream app.

Now, while complaining here, I found a zoom setting in SkyBox (requires vr180 viewing mode) which seems to take care of the horizontal stretch. It appears the zoom is horisontal only.

Other, file size difference between h264 and h265 is 2,5 vs 0,6 GB, which is crazy big difference.

Overall, the phone's native resolution is 2550x1440, and I was hoping that this is enough to hide individual pixels. It is not.

Hope this is useful or gives some ideas.

Kaido

Kaido

Newbie Joined: Feb 13, 2011 14:17 Messages: 10 Offline

Feb 18, 2018 15:35

Tried using output/produce setting 3D/Side-by-side full width which resulted in 4 side-by-side frames. Haaa! Not expected..

Seems that if incoming video is side-by-side, then 3D export/produce is not good.

Kaido

James Dotson

Senior Contributor Location: Tennessee Joined: Aug 24, 2009 20:40 Messages: 3066 Offline

Feb 20, 2018 22:41

I have never gotten a side by side full width video to work properly. I only have one player that will play 3D, so I don't know if it is an encoding problem or a playback problem. When you get a single frame, are you using the 3D tab in Produce? If not PD will remove one side and produce a 2D video. __________________________________
CORNBLOSSOM

Kaido

Newbie Joined: Feb 13, 2011 14:17 Messages: 10 Offline

Feb 22, 2018 13:24

Quote When you get a single frame, are you using the 3D tab in Produce? If not PD will remove one side and produce a 2D video.

My goal is to get 3D output, so I have not looked at single frame (2d) processing.

Kaido