MPEG_animation_timing

Contributors

Status

Draft

Dependencies

Written against the glTF 2.0 spec.

Overview

MPEG_animation_timing enables alignment between MPEG media timelines and animation timeline defined by glTF 2.0. Using the extension narrated stories could be created. The animation timing metadata could allow simultaneous pausing and other manipulation of animations defined in glTF 2.0 and MPEG media.

Properties

Type Description Required
accessor integer The index of the accessor. Yes

MPEG_animation_timing.accessor

The index of the accessor. Provides a reference to the accessor, by specifying the glTF 2.0 accessor’s index in accessors array, that describes the buffer where the animation timing data will be made available.

The glTF 2.0 accessor indicated by the field shall contain MPEG_accessor_timed extension and point to a a glTF 2.0 buffer that contain MPEG_buffer_circular.

Interaction with other extensions

The glTF 2.0 accessor indicated by the field shall contain MPEG_accessor_timed extension and point to a a glTF 2.0 buffer that contain MPEG_buffer_circular. The MPEG_buffer_circular extensions links to media that are provided by MPEG_media.

glTF Schema Updates

TODO

JSON Schema

MPEG_animation_timing.schema.json

Known Implementations

Resources