Refuse plein-air on technical grounds
Direct rejection: natural daylight is "too easy" — the high-value outdoor range gives the painter too much information and too little structural problem. The demanding condition was controlled artificial light: gas-light, oil-lamp, the moonlight-simulation he built in his studio.
Why it matters · Most Impressionist contemporaries treated outdoor light as the foundation of modern painting. Degas's position is the cleanest case for treating difficult artificial light as the structural problem. Painters who only paint outdoors miss what the studio chamber teaches.
Recorded by Paul Valéry, Degas, Danse, Dessin, 1938
Peinture à l'essence — wick the binder out of oil paint
Squeezed commercial oil paint onto blotting paper to wick out most of the drying oil binder, then restored viscosity with turpentine or oil of spike lavender. Result: thin, matte, fast-drying paint film with optical quality of distemper but pigment range of oil.
Why it matters · Most painters accept the commercial paint as a finished product. Degas treated it as raw material to be modified for the surface he wanted. Painters who never modify the medium accept whatever surface the tube produces.
Layered pastel with fixative between layers
Applied a layer of soft pastel, fixed it with spray fixative (probably shellac-based), applied the next layer, fixed it, and so on. Mature pastels have five, six, or more layers with optical depth pure single-pass pastel cannot produce.
Why it matters · A single pastel layer is a bright sketch. The layered method is a glazing analogue — the depth of an oil painting in a fugitive medium. Painters who use pastel only as single-pass sketch miss the full range.
Musée Thyssen-Bornemisza, Technical Study of At the Milliner's, 2017
Trace your own drawings — iterate poses across decades
Traced his own drawings extensively on semi-transparent paper. The tracing was iteration, not duplication. A dancer drawn in 1878 was traced and modified in 1881, retraced and modified in 1885, and the 1885 version re-entered the pool of source material.
Why it matters · Lets the painter redeploy a pose across decades of pictures without the original figure decaying into received convention. Most painters draw a figure once. Degas's system of traced iteration is the cleanest argument for treating drawing as a long-term archive.
Pastel over monotype
Pulled a monotype print (oil-based ink on metal plate, printed on dampened paper) and used the tonal ghost as a structural armature for pastel work laid directly over the dried ink.
Why it matters · The monotype gives a compositional and tonal base the pastel fills in. Many "counterproofs" — second impressions with almost no ink remaining — are almost invisible under the finished pastel. Painters who do not combine media miss what one medium can supply for the next.
Build sculpture and painting in parallel
For dancers and horses, modeled a three-dimensional version of the figure in wax at the same time he was painting the two-dimensional version. The sculpture and the painting informed each other.
Why it matters · The painted figure inherits the sculptural grasp of three-dimensional form; the sculpted figure inherits the specific gesture the drawings had isolated. Painters who never sculpt have trouble making bodies weigh.