When painting outdoors, lighting is controlled by the sun, clouds, atmosphere, and time of day. But in the studio you get to choose your lighting source from window light to bulbs of all kinds. In an article about color in the March 2011 Artists Magazine, Scott Burdick suggests an experiment to compare the effect of cool and warm light sources: Set up a still life of primary-colored objects and paint it twice; once under a warm light and again under cool light. That’s what I did in the studies above.
While I’m not sure I captured every nuance (or get the drawing just right), it’s interesting to see how different the same-colored objects and white background cloth look under different “temperatures” of light.
I did these two studies in Peggi Kroll-Roberts‘ studio, with the subjects lit by 150 watt incandescent bulbs which have an even warmer color temperature than the bulbs I used in my two top studies. The actual goal of the study on the left was to paint the scene (cantaloupe and watermelon slices) with as few brush strokes as possible. The assignment for the one on the right was to group and paint the shadows with one color only.
Lighting technical stuff: