Video VIDEO settings vary depending on the selected export format. Each format has unique requirements that determine which settings are available.
Taking the export file format as H.264 as an example, the options and instructions for Advanced Settings and VR Video are given below.
advanced settings
Advanced Settings
keyframe distance
Key Frame Distance
Enable this option to specify how often keyframes (also called I-frames) are inserted when exporting (compressed) video.
illustrate:
H.264, MPEG 2, HEVC (H.265) and other formats adopt the Interframe Compression algorithm, and use three types of I, B, and P frames to record information.
Among them, the I frame is the key frame mentioned here, which refers to an uncompressed frame and records all the information of a frame.
Therefore, using smaller keyframe ( I - frame ) distance values results in higher video quality, but may increase file size.
When disabled, Pr chooses the appropriate keyframe interval based on the export format and frame rate.
VR video
VR Video
Using the VR export settings, you can export 360° footage just like regular footage.
Take advantage of VR 360 editable spherical projection and bispherical formats. Material categories include monoscopic and stereoscopic.
Exporting spherical projection video is done in the same way as any other type of video, but there are some caveats to be aware of.
Video for VR
Video Is VR
Enable to add VR video metadata.
frame layout
Frame Layout
Describes how mono/stereo images are laid out in a frame.
--Single image
Monoscopic
--stereo- up/down
Stereoscopic - Over/Under
--stereo- side by side
Stereoscopic - Side by Side
illustrate:
Monoscopic VR videos are suitable for naked-eye viewing, while stereoscopic VR videos need to be viewed with a VR helmet.
horizontal viewing angle
Horizontal Field of View
The number of angles of the horizontal view in the video frame.
vertical viewing angle
Vertical Field of View
The number of vertical view angles in the video frame.
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