360-virtual-reality

问题 I am trying to transcode a 360 Video using ffmpeg (to play on Gear VR, for now), mainly to reduce the bitrate (this is a requirement). But the output file seems to remove the "Side Data" that has the 360 video metadata. Input file ffprobe result (note the Side Data section): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42mp41 creation_time : 2016-10-28T10:41:42.000000Z Duration: 00:02:09.56, start: 0.000000, bitrate:

问题 Is it possible to control regular html objects outside of a-scene using A-Frame entities? For example, I would like to toggle a modal object when selecting a plane, sphere, etc. within an embedded scene. I know about the UI Modal that can be displayed within the scene, but the ability to operate between the scene and "exterior" elements would be very powerful. I'm sure this is possible, but I do not have the VR developer skills yet to figure this one out! Thanks in advance for your help! 回答1:

问题 I am trying to show four videos at once using Google Cardboard. These videos are normal 2D videos that were shot on a normal 16:9 camera. What I want and need is to have one video in front of you then you turn your head 90 degrees and you see another video, turn again and see another until you hit the front video again. Please see my Pablo Picasso Microsoft Paint skills to visualize what I am talking about... So basically what I need is like four VR movie theater screens that a person can

问题 I want to enable viewing 360-degree videos from Youtube inside my app in the cardboard mode which splits the video into two halves for the two lenses in a Google cardboard, like in the Youtube app. I'm using Youtube's Player API for Android to show youtube video's in my app but I don't see any option to enable cardboard mode in the YouTubePlayer interface docs. Please advice how can this be done. Thanks 来源： https://stackoverflow.com/questions/42840077/how-to-enable-cardboard-mode-in-youtube

问题 I want to Detect 360 degree video I want to find if the video format is 360 degree and based on that manage the player supported the 360 degree So anybody can help ? 回答1: It seems that the 360video/VR standards are still in flux. This article, http://labs.dash.umn.edu/etc-lab/detecting-spherical-media-files/, (dated April 2016) suggests that inspecting the EXIF properties of the photo/video might reveal a pattern in the metadata. There are libraries available to access EXIF data from files,

问题 This question is based on my previous question about the difference between ViewPort and FOV. I'm writing an application which receives 360-video and renders on screen. Assume my video stream contains some information about the dimension of FOV (part of the video frame to be displayed at an instance) for each eye. Do I need to render that FOV within the ViewPort of each eye? I saw that some VR headsets advertise about their FOV. So, I think sometimes the device FOV may be different than video

问题 In the documentation for ReactVR for VideoPano it demonstrates pointing to a video in the code base. Is it possible to link to an external link (aka Youtube)? So instead of video.mp4, it would link to https://www.youtube.com/watch?v=hkgYIr_LWPw&index=1&list=PL-BE7kqSgbEj44peyt5BmLK63kbDp7Rhu let videoUrl = 'video.webm'; const supportedFormats = NativeModules.VideoModule.supportedFormats; for (let i = 0; i < supportedFormats.length; i++) { if (supportedFormats[i] === 'mp4') { videoUrl = 'video

问题 I'm looking for recommendations on hardware and software to render a live stitched feed from a local 360 camera in Unity (alternatively native iOS or Android) at absolute minimum latency . There is high flexibility regarding the hardware and setup. It can be a mobile or a desktop app. Can be any reasonably priced 360 camera. It can be a wired connection or WiFi direct. The only thing that matters is to have access to the stitched live video feed in a custom app (SDK?) and be able to render it

问题 I am new to unity and VR. I have been using google cardboard SDK to create VR apps in unity and am stuck at gazetimer. I want to trigger an action only if the user looks at any object for 3secs but have not been able to do so. Please help 回答1: Please see a similar question and answer here Use Gaze Input duration to select UI text in Google Cardboard In summary, create a script to time the gaze, by cumulatively adding Time.deltaTime on each frame when the object is gazed at. When gaze time

问题 I have an app that plays normal and VR videos. My app has two players to play both types. In my VrVideoView there is a button that makes video play in stereo mode . My question is: how can I view normal videos in Cardboard just like the YouTube app? 来源： https://stackoverflow.com/questions/39020103/how-to-view-normal-video-in-cardboard-like-youtube