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Autopano Video - How to create 3D 360 videos v2


Introduction

This tutorial explains how to create a stereoscopic (3D) 360 video with AutopanoPro v2.
The idea is to create one video for left eye and one video for right eye. After, we just have to merge the two videos in one.
The 3D 360 video can be watched with GoPro VR Player and Oculus Rift or HTC Vive device.

The solutions used to create this tutorial are:

  • Autopano Video Pro 2.2
  • Autopano Giga 4.2

Stitching

For the first steps (synchronization, stitching, stabilization and color correction), do exactly the same as you would do for non-stereoscopic videos, with all the source videos into a same project.


Settings stereo@2x.png Assigning eyes

To generate a stereoscopic video, we need to render the videos separately, one for the left eye and one for the right eye.

To do so, we need to tell Autopano Video what goes left and what goes right. Click on "Render" button, go to the "Stereo settings" tab and click on "Stereo mode" to enable stereo rendering. From here, you can assign each source video, or side of source video, to an eye.


Autopano Video Pro- -Stereo.png
Each source video can be assigned in 5 different ways:
  • Left and right: the source will be used in both left and right renderings. This option is especially useful for zenith and nadir cameras.
  • Left only: the source will be used only in the rendering for the left eye.
  • Right only: the source will be used only in the rendering for the right eye.
  • Vertical split: the left side of the source will be used in the rendering for the left eye, and the right side of the source will be used in the rendering for the right eye.
  • Vertical split inverted: the left side of the source will be used in the rendering for the right eye, and the right side of the source will be used in the rendering for the left eye.
  • Horizontal split: the top side of the source will be used in the rendering for the left eye, and the bottom side of the source will be used in the rendering for the right eye.
  • Horizontal split inverted: the top side of the source will be used in the rendering for the right eye, and the bottom side of the source will be used in the rendering for the left eye.

Rendering

At the bottom of the tab "Stereo settings" choose the eye you want to render. Then, if you click on Apply button, the settings will be used in the preview. If you click on OK, this eye will be rendered. Render the both eyes this way in two separate video files.


Merge the two videos...

You can use a tool like ffmpeg (http://www.ffmpeg.org/download.html) to merge the videos into one.

Video Over/Under

Here is the command line to have a video with left eye on top and right eye on bottom :


* ffmpeg -i left.mp4 -vf "[in] pad=iw:2*ih [left]; movie=right.mp4 [right];[left][right] overlay=0:main_h/2 [out]" output.mp4

Video Side by Side

Here is the command line to have a video with left eye on left and right eye on right :


* ffmpeg -i left.mp4 -vf "[in] pad=2*iw:ih [left]; movie=right.mp4 [right];[left][right] overlay=main_w/2:0 [out]" output.mp4

... and play it

Use GoPro VR Player and an Oculus Rift or an HTC Vive device to watch the result.



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