message: Fix use of matmul operation in matrix.py
diff: @@ -199,7 +199,7 @@ def polar_decomp(a, it=10):
  s1, s2 = gamma * .5, (_ek.rcp(gamma) * .5)
  for i in range(a.Size):
  q[i] = _ek.fmadd(q[i], s1, qi[i] * s2)
  - return q, transpose(q) * a
  + return q, transpose(q) @ a
  def quat_to_matrix(q, size = 4):
  @@ -320,7 +320,7 @@ def transform_compose(s, q, t):
  module = _modules.get(q.__module__)
  Matrix4f = getattr(module, name)
  - result = Matrix4f(quat_to_matrix(q, 3) * s)
  + result = Matrix4f(quat_to_matrix(q, 3) @ s)
  result[3] = [t[0], t[1], t[2], 1.0]
  return result
  