Indirect painting:  Procedures in which the final effects in a picture are built up gradually by placing several layers of paint, one over the other, the upper layers modifying, but not [necessarily] concealing, the lower layers. 

The existence of indirect painting arises from the fact that although paint may be used opaquely to conceal what is beneath it, it can also be applied so as to be transparent, revealing to a greater or lesser extent what it covers.
Notebook: Oil Painting

GottliebStudios.com/Classical_Glossary

HOME