Method Identity

math.go:178–189

Identity sets the matrix to the Identity matrix and returns the matrix.

()

// Identity sets the matrix to the Identity matrix and returns the matrix.
func (m *Matrix) Identity() *Matrix {
	m.Val[m00] = 1
	m.Val[m10] = 0
	m.Val[m20] = 0
	m.Val[m01] = 0
	m.Val[m11] = 1
	m.Val[m21] = 0
	m.Val[m02] = 0
	m.Val[m12] = 0
	m.Val[m22] = 1
	return m
}

// Multiply postmultiplies m matrix with m2 and stores the result in m, returning m.
// Multiplaction is the result of m2 times m.