title: How to fill a JavaFX Sphere with two Colors
body: <p>How can I fill in JavaFX a 3D Sphere with a linear gradient like a 2d Circle?
  I work with the JavaFX Scene Builder. </p>
  
  <p><img src="https://i.stack.imgur.com/eQwi9.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/d2K4c.png" alt="enter image description here"></p>