Method MulDirection

ln/matrix.go:148–153

(b Vector)

}

func (a Matrix) MulDirection(b Vector) Vector {
	x := a.x00*b.X + a.x01*b.Y + a.x02*b.Z
	y := a.x10*b.X + a.x11*b.Y + a.x12*b.Z
	z := a.x20*b.X + a.x21*b.Y + a.x22*b.Z
	return Vector{x, y, z}.Normalize()
}

func (a Matrix) MulRay(b Ray) Ray {
	return Ray{a.MulPosition(b.Origin), a.MulDirection(b.Direction)}