three-mesh-bvh
Version:
A BVH implementation to speed up raycasting against three.js meshes.
42 lines (24 loc) • 753 B
JavaScript
export function isSharedArrayBufferSupported() {
return typeof SharedArrayBuffer !== 'undefined';
}
export function convertToBufferType( array, BufferConstructor ) {
if ( array === null ) {
return array;
} else if ( array.buffer ) {
const buffer = array.buffer;
if ( buffer.constructor === BufferConstructor ) {
return array;
}
const ArrayConstructor = array.constructor;
const result = new ArrayConstructor( new BufferConstructor( buffer.byteLength ) );
result.set( array );
return result;
} else {
if ( array.constructor === BufferConstructor ) {
return array;
}
const result = new BufferConstructor( array.byteLength );
new Uint8Array( result ).set( new Uint8Array( array ) );
return result;
}
}