Attribute

new Attribute(array: TypedArray | number[], itemSize: number)

THREE equivalent: THREE.BufferAttribute

Typed array wrapper for vertex attributes (position, normal, uv, color). Each vertex consumes itemSize consecutive elements.

Differs from THREE.js

No GPU buffer - data is read directly by the CPU rasterizer.

Properties

Name	Type	Description
array	Float32Array|Uint16Array|Uint32Array	Backing typed array.
itemSize	number	Number of array elements per vertex.
count	number	Number of vertices (array.length / itemSize).
needsUpdate	boolean	Flag for external cache invalidation.

Methods

Method	Description
getX(index: number): number	Returns the first component at vertex index.
getY(index: number): number	Returns the second component at vertex index.
getZ(index: number): number	Returns the third component at vertex index.
setXYZ(index: number, x: number, y: number, z: number): this	Writes three components at vertex index.
clone(): Attribute	Returns a new Attribute with a copied array.