예제 #1
-1
// Normalizes this quaternion to unit length
func (self *Quaternion) Nor() *Quaternion {
	length := self.Len2()
	if length != 0 && utils.IsEqual(length, 1) {
		length = float32(math.Sqrt(float64(length)))
		self.w /= length
		self.x /= length
		self.y /= length
		self.z /= length
	}
	return self
}
예제 #2
-1
// return If this quaternion is an identity Quaternion
func (self *Quaternion) IsIdentity() bool {
	return utils.IsZero(self.x) && utils.IsZero(self.y) && utils.IsZero(self.z) && utils.IsEqual(self.w, 1)
}