[c] St. John Leading the Virgin from the Tomb, National Gallery of British Art, London.
[d] The Countess of Chesterfield and Mrs. Anson, Gilmour Collection, Scotland.
There is only one method of using this device for assisting in the production of relief in interiors. This is to throw the figure against a high wall which is undecorated or nearly so. The figure must be some little distance in front of the wall, and it is observable that the best effect is obtained when the light throughout the room is equal, but in any case the wall should not have less light than the figure. Inasmuch as the figure has to be of life size or nearly so, to produce the desired result, a very large picture would be necessary for the representation of a standing adult; hence the plan is not attempted with a life-size figure, except with a sitting adult or a standing child. Before this scheme was used for the human figure, that master of relief, M. A. Caravaggio, adopted it for a simple still-life work.[a] A basket of fruit on a plain table, with a high bare wall at the back--the canvas now sombre and darkened, like the soul of the artist, but still remarkable for the relief: this was the first application to interiors of a plan which had been used in exteriors by some of the greatest masters for more than a century.
So far as can be gathered from existing works, thirty or forty years elapsed after the picture of Caravaggio was painted before the scheme was brought into use for the human figure in interiors. In 1630, or thereabouts, Velasquez produced his Christ at the Column.[a] Here the wall is not actually high, but Christ is shown seated on the floor, and hence there is ample wall space over which the eye may rove. It is possible that the adoption of the plan in this instance was the result of accident, but the very unusual pose of Christ hardly warrants the suggestion. Velasquez painted no more pictures of the kind till a quarter of a century later, when he produced Las Meninas. In this the relief is excellent, but it would have been still better without the picture on the wall, and the open door in the background, though the figure seen on the steps through the doorway lends assistance to the illusion.