Data specifying which tiles/contents/child subtrees exist within a single subtree of an implicit tileset
A closed volume completely containing the union of a set of geometric objects. See Wikipedia: Bounding volume
A subtree reachable from an available tile in the bottommost row of a subtree of an implicit tileset
An entity, in the context of 3D Tiles metadata, is an instance of a metadata class, populated with property values conforming to a metadata class definition
In 3D Tiles, an individual component of a tile, such as a 3D model in a Batched 3D Model or a point in a Point Cloud which contains position, appearance, and metadata properties.
The difference, in meters, of a tile’s simplified representation of its source geometry used to calculate the screen space error introduced if a tile’s content is rendered and its children’s are not.
Decreasing the complexity of a 3D representation according to metrics such as object importance or distance from the tile to the observation point or camera position. Generally, higher levels of detail provide greater visual fidelity. See Wikipedia: Level of detail
A tile that contains the implicitTiling property, and therefore denotes the root of an implicit tileset.
In the context of 3D Tiles, metadata is equivalent to the concept of attribution in other Open Geospatial Consortium standards. Metadata refers to non-spatial information that is assigned to entities at multiple granularities, including tilesets, tiles, and features.
The description of the structure of an entity that contains 3D Tiles metadata, consisting of multiple metadata properties
An element of a metadata class that defines a name and a type for the corresponding element of a metadata entity.
A 3D subdivision scheme that divides each bounding volume into 8 smaller bounding volumes along the midpoint of the x, y, and z axes.
A 2D subdivision scheme that divides each bounding volume into 4 smaller bounding volumes along the midpoint of the x and y axes.
The difference, in pixels, of a tile’s simplified representation of its source geometry introduced if a tile’s content is rendered and its children’s are not.
The union of all content of the child tiles is completely inside the parent tile’s bounding volume
A fixed-size section of the tree of an implicit tileset that contains availability information.
A recursive pattern of dividing a parent tile into smaller child tiles occupying the same area. This is done by uniformly dividing the bounding volume of the parent tile with an implicit tileset.
A URI pattern containing tile coordinates for directly addressing tiles in an implicit tileset.
In 3D Tiles, a subset of a tileset containing a reference to renderable content and the metadata, such as the content’s bounding volume, which is used by a client to determine if the content is rendered.
A binary blob containing information necessary to render a tile which is an instance of a specific tile format (Batched 3D Model, Instanced 3D Model, Point Clouds, Composite, or glTF).
The structure or layout of tile content data, (Batched 3D Model, Instanced 3D Model, Point Clouds, Composite, or glTF).