Quotation from: The Notebooks of Leonardo Da Vinci
Written by: Leonardo da Vinci
460.
OF TREES AND LIGHTS ON THEM.
The best method of practice in representing country scenes, or I
should say landscapes with their trees, is to choose them so that
the sun is covered with clouds so that the landscape receives an
universal light and not the direct light of the sun, which makes the
shadows sharp and too strongly different from the lights.