computeNormal method

void computeNormal()

Implementation

void computeNormal() {
	final vA = this.v1!.position;
	final vB = this.v2!.position;
	final vC = this.v3!.position;

	_cb.subVectors( vC, vB );
	_ab.subVectors( vA, vB );
	_cb.cross( _ab ).normalize();

	this.normal.copy( _cb );
}