Jean-Paul Riopelle to abstract expressionism), in which he used myriad tumultuous cubes and triangles of multicolored elements, facetted with a palette knife, spatula, or trowel, on often large canvases to create powerful atmospheres. The presence of long filaments of paint in his painting from 1948 through the early 1950s has often been seen as resulting from a dripping technique like that of Jackson Pollock. Rather, the creation of such effects came from the act of throwing, with a palette knife or brush, large quantities of paint onto the stretched canvas (positioned vertically). Riopelle's voluminous impasto became just as important as color. His
The Joy of Painting old instructor John Thamm, and many others. Within the 30-minute program, Ross graphically ran the colors across the screen (this was not done in earlier seasons), as he turned the blank canvas into an imaginary landscape, using the wet-on-wet oil painting technique, in which the painter continues adding paint on top of still-wet paint rather than waiting for each layer of paint to dry. Combining this method with the use of two-inch and other types of brushes, as well as painting knives, allowed him to paint trees, water, clouds, and mountains in a matter of seconds. Each painting would start