Interface XGFStreamingRuntimeIndex

Compact runtime index for an XGF stream dataset.

This representation minimizes repeated JSON property names in large stream indexes. Decode it with readXGFStreamingRuntimeIndex before passing it to loaders or view controllers.

interface XGFStreamingRuntimeIndex {
    aabb?: number[];
    coordinateSystem?: Record<string, any>;
    counts?: [
        "transforms",
        "geometries",
        "materials",
        "textures",
        "meshes",
        "objects",
    ];
    format: "XGFStreamingRuntimeIndex";
    indexVersion: "1.0.0"
    | "1.1.0"
    | "1.2.0";
    metadata?: Record<string, any>;
    roles?: ["full", "assetLibrary", "referencesOnly"];
    root?: (string | number)[];
    strings?: string[];
}

Properties

aabb? coordinateSystem? counts? format indexVersion metadata? roles? root? strings?

Properties

Optionalaabb

aabb?: number[]

Aggregate stream AABB.

OptionalcoordinateSystem

coordinateSystem?: Record<string, any>

Optional coordinate system for the stream's chunk coordinates.

Optionalcounts

counts?: [
    "transforms",
    "geometries",
    "materials",
    "textures",
    "meshes",
    "objects",
]

Count lookup table used by compact chunk tuples.

format

format: "XGFStreamingRuntimeIndex"

Runtime index format identifier.

indexVersion

indexVersion: "1.0.0" | "1.1.0" | "1.2.0"

Runtime index schema version.

Optionalmetadata

metadata?: Record<string, any>

Optional application metadata copied through unchanged.

Optionalroles

roles?: ["full", "assetLibrary", "referencesOnly"]

Role lookup table used by compact chunk tuples.

Optionalroot

root?: (string | number)[]

IDs of primary scene-content chunks.

Optionalstrings

strings?: string[]

String lookup table used by runtime index v1.1.

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