three 基础库
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( function () {
const _translationObject = new THREE.Vector3();
const _quaternionObject = new THREE.Quaternion();
const _scaleObject = new THREE.Vector3();
const _translationWorld = new THREE.Vector3();
const _quaternionWorld = new THREE.Quaternion();
const _scaleWorld = new THREE.Vector3();
class Gyroscope extends THREE.Object3D {
constructor() {
super();
}
updateMatrixWorld( force ) {
this.matrixAutoUpdate && this.updateMatrix(); // update matrixWorld
if ( this.matrixWorldNeedsUpdate || force ) {
if ( this.parent !== null ) {
this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
this.matrixWorld.decompose( _translationWorld, _quaternionWorld, _scaleWorld );
this.matrix.decompose( _translationObject, _quaternionObject, _scaleObject );
this.matrixWorld.compose( _translationWorld, _quaternionObject, _scaleWorld );
} else {
this.matrixWorld.copy( this.matrix );
}
this.matrixWorldNeedsUpdate = false;
force = true;
} // update children
for ( let i = 0, l = this.children.length; i < l; i ++ ) {
this.children[ i ].updateMatrixWorld( force );
}
}
}
THREE.Gyroscope = Gyroscope;
} )();