The Reilly Papers

The color of the light source directly affects the hue on the light side of form. Within the cast shadow, it causes the illusion of the ligh...

Claude Monet  "The Four Trees"  www.metmuseum.com Reilly's original notes are missing on this topic, so I am substituting m...

Gradation :  Reilly uses the term gradation to describe a gradual change in value over a flat surface; side to side, top to bottom or diag...

By simplifying form into planes, it becomes easier to understand and see how light affects form. There are four basic planes: front or uprig...

Rembrandt (Rembrandt van Rijn)  Self-portrait  www.metmuseum.org In Reilly's words, "The  effect  is where you look first, it i...

Look for the highlight on a sphere, like the ball of the nose, on corners, like the edge of the nose, and in corners like where the side o...

The center light is the main modeling factor out in the light. It takes the flatness out of the  planes in the light area. It makes form o...