41. Mosaic Glass, Arezzo.
The fault inherent in such work as the Brussels windows is neither Van Orley’s nor the glass painter’s; it is in the mistaken aim of the designer striving less for colour in his windows than for relief. He succeeds in getting quite extraordinary relief, but at the expense of colour, which in glass is the most important thing. The figures in the window illustrated are so strongly painted that even the white portions of their drapery stand out in dark relief against the pale grey sky. That is not done, you may be sure, without considerable sacrifice of the light-giving quality of the glass. It is at a similar cost that the white-and-gold architecture stands out in almost the solidity of actual stone against the plain white diamond panes above, giving very much the false impression that it is placed in the window, and that you see through its arches and behind it into space. Another very striking thing in the composition is the telling mass of shadow on the soffit of the central arch. It produces its effect, and a very strong one. The festoons of yellow arabesque hanging in front of it tell out against it like beaten gold, and the rather poorish grey-blue background to the figures beneath it has by comparison an almost atmospheric quality. It is all very skilfully planned as light and dark; but there is absolutely no reason why that shadow should have been produced by heavy paint. Under certain conditions of light there are, it is true, gleams of light amidst this shadow. You can make out that the roof is coffered, and can perceive just a glow of warm colour; but most days and most of the day it is dead, dull, lifeless, colourless. The points to note are: (1) that this painted shadow must of necessity be dull; and (2) that on work of this scale at all events (the figures here are very much over lifesize), this abandonment of the mosaic method was not in the slightest degree called for. On the contrary, the simpler, easier, and more workmanlike thing to do would have been to glaze-in the shadow with deep rich pot-metal glass. That was done in earlier glass, and in glass of about the same period as this.
42. RENAISSANCE WINDOW, S. GUDULE, BRUSSELS.
For example, at Liège, where there are beautiful windows of about the same period, very similar in design, the glass is altogether lighter and more brilliant, partly owing to the use of paint with a much lighter hand, but yet more to greater reliance upon pot-metal. In the Church of S. Jacques, as at S. Gudule, there are arched canopies with festoons in bright relief against a background of shadowed soffit; but there the shadow is obtained by glazing-in pot-metal, which has all the necessary depth, and is yet luminous and full of colour.
So also the deeply shadowed architectural background to the representation of the Daughter of Herodias dancing before Herod, in the Church of S. Vincent, at Rouen ([overleaf]), is leaded up in deep purple glass, through which you get peeps of distant atmospheric blue beyond. And this was quite a common practice among French glass painters of the early half of the sixteenth century—as at Auch, at Ecouen, at Beauvais, at Conches, where the architecture in shadow is leaded in shades of purple or purplish glass, which leave little for the painter to do upon the pot-metal. At Freiburg, in Germany, there is a window designed on lines very similar indeed to Van Orley’s work, in which the shadowed parts are glazed in shades of deep blue and purple. In Italy it was the custom, already in the fifteenth century, to lead-in deep shadows in pot-metal; and they did not readily depart from it. Surely that is the way to get strong effects, and not by paint. You may take it as a test of workmanlike treatment, that the darks have been glazed-in, where it was possible, and not merely painted upon the glass.
There is some misconception about what is called Renaissance glass. Glass painting was not native to Italy, and was never thoroughly acclimatised there, any more than Gothic architecture, to which it was—the handmaid I was going to say, but better say the standard-bearer. Much glass was accordingly executed in Italy in defiance, not only of all tradition, but of all consistency and self-restraint. But even in Italy you will find sixteenth century glass as workmanlike as can be. The details from Arezzo and Bologna, [above], [overleaf], and on [page 266], are pronouncedly Renaissance in type, but the method employed by the glass painter is as thoroughly mosaic as though he had worked in the thirteenth century. Not less glazier-like in treatment are the French Renaissance details from Rouen, on [pages 75] and [347], from which it may be seen that a workmanlike treatment of glass was not confined to Gothic glaziers. It was less a question of style, in the historic sense, than of the men’s acquaintance with the traditions of good work, and their readiness to accept the situation.