Abstract: An encoder encodes three-dimensional (3D) volumetric content, such as immersive media, using video encoded attribute patch images packed into a 2D atlas to communicate the attribute values for the 3D volumetric content. The encoder also uses mesh-encoded sub-meshes to communicate geometry information for portions of the 3D object or scene corresponding to the attribute patch images packed into the 2D atlas. The encoder applies decimation operations to the sub-meshes to simplify the sub-meshes before mesh encoding the sub-meshes. A distortion analysis is performed to bound the level to which the sub-meshes are simplified at the encoder. Mesh simplification at the encoder reduces the number of vertices and edges included in the sub-meshes which simplifies rendering at a decoder receiving the encoded 3D volumetric content.

Abstract: A set of planes is determined based on the vertices of a three-dimensional scene. The set of planes is determined independent of any particular orientation with respect to a reference viewpoint of the three-dimensional scene. The vertices are associated with the set of planes and respective textures are associated with the set of planes based on the associated vertices.

Abstract: Implementations of the subject technology provides analyzing a recording of content. The subject technology generates metadata information based at least in part on the analyzing. The subject technology identifies, based at least in part on at least one of a user preference or a detected event, a region of interest or an object of interest in the recording of content. Based at least in part on the identified region of interest or object of interest, the subject technology generates a modified version of the recording of content. Further, the subject technology stores the modified version of the recording of content for subsequent playback on an electronic device.

Abstract: One or more computing devices implement a mesh analysis for evaluating meshes to be rendered when rendering immersive content. The mesh analysis identifies objects in a three-dimensional scene and determines geometrical complexity values for the objects. Objects with similar geometrical complexities are grouped into areas and a mesh vertices budget is determined for the respective areas. Metadata indicating the area definitions and corresponding mesh vertices budgets are generated. The metadata may be uploaded to a server to simplify meshes in the scene prior to streaming to a client, or the metadata may be provided to a client for use in simplifying the meshes as part of rendering the scene.

Abstract: Techniques are disclosed relating to encoding recorded content for distribution to other computing devices. In various embodiments, a first computing device records content of a physical environment in which the first computing device is located, the content being deliverable to a second computing device configured to present a corresponding environment based on the recorded content and content recorded by one or more additional computing devices. The first computing device determines a pose of the first computing device within the physical environment and encodes the pose in a manifest usable to stream the content recorded by the first computing device to the second computing device. The encoded pose is usable by the second computing device to determine whether to stream the content recorded by the first computing device.

Abstract: Systems and methods for gaze-driven recording of video are described. Some implementations may include accessing gaze data captured using one or more gaze-tracking sensors; applying a temporal filter to the gaze data to obtain a smoothed gaze estimate; determining a region of interest based on the smoothed gaze estimate, wherein the region of interest identifies a subset of a field of view; accessing a frame of video; recording a portion of the frame associated with the region of interest as an enhanced frame of video, wherein the portion of the frame corresponds to a smaller field of view than the frame; and storing, transmitting, or displaying the enhanced frame of video.

Abstract: Techniques are disclosed relating to encoding recorded content for distribution to other computing devices. In some embodiments, a first computing device creates recorded content for transmission to a second computing device configured to present the recorded content. To encode the recorded content, the first computing device detects, via a network interface of the first computing device, one or more computing nodes available to encode the recorded content in one or more formats supported by the second computing device. The first computing device offloads the recorded content via the network interface to the one or more computing nodes for encoding in the one or more formats. In some embodiments, the second computing device receives a request from a user to stream content recorded by a first computing device and requests the content in a first format being encoded by a computing node assisting the first computing device.

Abstract: Implementations of the subject technology provides analyzing a recording of content. The subject technology generates metadata information based at least in part on the analyzing. The subject technology identifies, based at least in part on at least one of a user preference or a detected event, a region of interest or an object of interest in the recording of content. Based at least in part on the identified region of interest or object of interest, the subject technology generates a modified version of the recording of content. Further, the subject technology stores the modified version of the recording of content for subsequent playback on an electronic device.

Abstract: Implementations of the subject technology provide determining an operating mode of an electronic device based at least in part on whether the electronic device is communicatively coupled to an associated base device. Based on the determined operating mode, the subject technology identifies a set of input modalities for initiating a recording of content within a field of view of the electronic device. The subject technology monitors sensor information generated by at least one sensor included in, or communicatively coupled to, the electronic device. Further, the subject technology initiates the recording of content within the field of view of the electronic device when the monitored sensor information indicates that at least one of the identified set of input modalities has been triggered.

Abstract: Aspects of the subject technology relate to encoding of video frames having content with a variable resolution that varies within the video frame. Aspects of the subject technology can provide an efficient encoding by using smaller macroblocks for lower resolution content within the video frame, and larger macroblocks for higher resolution content within the video frame. An encoder may be provided with resolution information for the content of the video frame, which can be used by the encoder to determine macroblock sizes, macroblock divisions, and/or prediction modes for the encoding of the video frame.

Abstract: Implementations of the subject technology provide systems and methods for recording an extended reality experience in a way that allows the experience to be played back at a later time from a different viewpoint or perspective. This allows computer-generated content that was rendered for display to a user during the recording, to be re-rendered during playback at the correct time and location in the recording, but from a different perspective. In order to facilitate this type of viewer-centric playback, the recording includes a computer-generated content track that references resources for re-rendering the computer-generated content at each point in time in the recording.

Abstract: Various implementations disclosed herein include devices, systems, and methods that presents playback of application content within a three-dimensional (3D) environment. An exemplary process presents a first set of views that includes application content provided by the application within a 3D environment. The first set of views are provided from a first set of viewpoints during execution of the application. The process records of the execution of the application based on recording program state information and changes to the application content that are determined based on user interactions, and presents a second set of views including a playback of the application content within the 3D environment based on the recording. The second set of views are provided from a second set of viewpoints that are different than the first set of viewpoints.

Abstract: Techniques are disclosed relating to encoding recorded content for distribution to other computing devices. In some embodiments, a first computing device creates recorded content for transmission to a second computing device configured to present the recorded content. To encode the recorded content, the first computing device detects, via a network interface of the first computing device, one or more computing nodes available to encode the recorded content in one or more formats supported by the second computing device. The first computing device offloads the recorded content via the network interface to the one or more computing nodes for encoding in the one or more formats. In some embodiments, the second computing device receives a request from a user to stream content recorded by a first computing device and requests the content in a first format being encoded by a computing node assisting the first computing device.

Abstract: Implementations of the subject technology provide determining an operating mode of an electronic device based at least in part on whether the electronic device is communicatively coupled to an associated base device. Based on the determined operating mode, the subject technology identifies a set of input modalities for initiating a recording of content within a field of view of the electronic device. The subject technology monitors sensor information generated by at least one sensor included in, or communicatively coupled to, the electronic device. Further, the subject technology initiates the recording of content within the field of view of the electronic device when the monitored sensor information indicates that at least one of the identified set of input modalities has been triggered.

Abstract: Techniques are disclosed relating to encoding recorded content for distribution to other computing devices. In various embodiments, a first computing device records content of a physical environment in which the first computing device is located, the content being deliverable to a second computing device configured to present a corresponding environment based on the recorded content and content recorded by one or more additional computing devices. The first computing device determines a pose of the first computing device within the physical environment and encodes the pose in a manifest usable to stream the content recorded by the first computing device to the second computing device. The encoded pose is usable by the second computing device to determine whether to stream the content recorded by the first computing device.

Abstract: Techniques are disclosed relating to encoding recorded content for distribution to other computing devices. In various embodiments, a first computing device records content of a physical environment in which the first computing device is located, the content being deliverable to a second computing device configured to present a corresponding environment based on the recorded content and content recorded by one or more additional computing devices. The first computing device determines a location of the first computing device within the physical environment and encodes the location in a manifest usable to stream the content recorded by the first computing device to the second computing device. The encoded location is usable by the second computing device to determine whether to stream the content recorded by the first computing device.

Abstract: Implementations of the subject technology provide systems and methods for recording an extended reality experience in a way that allows the experience to be played back at a later time from a different viewpoint or perspective. This allows computer-generated content that was rendered for display to a user during the recording, to be re-rendered during playback at the correct time and location in the recording, but from a different perspective. In order to facilitate this type of viewer-centric playback, the recording includes a computer-generated content track that references resources for re-rendering the computer-generated content at each point in time in the recording.

Abstract: Systems and methods for gaze-driven recording of video are described. Some implementations may include accessing gaze data captured using one or more gaze-tracking sensors; applying a temporal filter to the gaze data to obtain a smoothed gaze estimate; determining a region of interest based on the smoothed gaze estimate, wherein the region of interest identifies a subset of a field of view; accessing a frame of video; recording a portion of the frame associated with the region of interest as an enhanced frame of video, wherein the portion of the frame corresponds to a smaller field of view than the frame; and storing, transmitting, or displaying the enhanced frame of video.

Abstract: A system comprises an encoder configured to compress and encode data for three-dimensional volumetric content. The encoder also is configured to segment the three-dimensional volumetric content based on viewing areas, wherein different ones of the viewing areas correspond to visible portions of the volumetric content. The system may provide metadata to a client device to support viewport adaptive rendering of the three-dimensional volumetric content or may adaptively stream portions of the three-dimensional volumetric content to a rending device based on viewing areas of the three-dimensional volumetric content that are to be rendered at the rendering device.

Abstract: Systems and methods for gaze-driven recording of video are described. Some implementations may include accessing gaze data captured using one or more gaze-tracking sensors; applying a temporal filter to the gaze data to obtain a smoothed gaze estimate; determining a region of interest based on the smoothed gaze estimate, wherein the region of interest identifies a subset of a field of view; accessing a frame of video; recording a portion of the frame associated with the region of interest as an enhanced frame of video, wherein the portion of the frame corresponds to a smaller field of view than the frame; and storing, transmitting, or displaying the enhanced frame of video.