Rockburne translates this kinetic language and captures it in static form without losing the sense of unfolding movement. In Golden Section Painting: Rectangle/Square (1974), the rectangle is tilted, and the square is split diagonally into identical triangles: one white, one brown. Pencil lines and folds illuminate the overall organisational tension to suggest alternative, dormant shapes. Despite these potentials, the settled-upon rhythm feels correct, while mathematical harmony is underpinned by the Golden Section of the title.
Restrained tones contribute to this serenity, but as the exhibition progresses it becomes clear that structure is the overriding interest. Vibrant colours pop out of the wall, quite literally in the three-dimensional Les Pensées e Pascal (1987–88). Comprising a series of painted linen panels arranged vertically against an indigo wall, the work rises from the floor as a fiery orange jagged shape, above which rests a watery blue triangle set further back and overlapped by a tilted rectangle. Theatrical, arresting, it demands attention as part of the gallery architecture.
While the demarcated sections resonate with hard-edge abstraction of the 1960s, the various angles and transparent painterly effect also recall stained-glass windows. Interior Perspective, Discordant Harmony (1985) comprises painted slats of colour on layered canvases. Diagonal lines fill a square, overlapping a diamond panel to its right. Acidic green meets raspberry pink in this composed combination, overseen by a moody blue fragment that peeks overhead. Something deeper seeps from such structure: spiritual or scientific (or both)?
The fourth floor focuses on Rockburne’s more recent, astronomically inspired works. Brash colours resemble tie-dye conglomerations on white paper, occasionally embellished with silver paint, but here, as in the series of works Magellanic Magnification I–III (1994–98), her geometries appear within fields of pigment that suggest a more cosmic context. If Rockburne’s earlier works glow with their own inner orders, these later works seem to want to position them within the largest order of all.
The Light Shines in the Darkness and the Darkness Has Not Understood It at Bernheim, London, through 25 January.