A painting by Italian Renaissance master Leonardo da Vinci that depicts Jesus Christ holding an orb sold for a world record $450.3 million at Christie’s auction house in … The world’s costliest painting depicts a glass sphere with curious optical properties. So, if he were painting a solid glass orb, Leonardo da Vinci would show the true distortion of objects behind curved glass. A group of computer scientists may have solved the mystery behind the glass orb in Leonardo da Vinci’s Salvator Mundi (ca. da Vinci was a … 1500). A virtual version of da Vinci’s mystery glass orb has helped explain its weirdness. In another explanation for the mystery of da Vinci's orb, biographer Walter Isaacson speculates that omitting distortion was the artist's conscious choice. Da Vinci had been well aware of painting techniques regarding optics, physics and light, and so the three dots seem questionable as they intentionally break the crystal-like realism of the orb. The da Vinci’s orb is not by da Vinci The orb’s reflection makes this painting the hardest thing to believe that it’s by da Vinci. Dr. Robert D. Elliot, in his work “Da Vinci’s Signature in the Cosmos”, presents the idea that the dots are part of the constellation of Leo: It’s painted with transparency of glass that’s impossible to achieve, considering the shape and properties of the orb, regardless its material. Many experts have questioned why the orb in Christ’s left hand does not appear to magnify and invert the material behind it, as it should if it was a solid glass ball.