CONTEXT · MATERIALS

Sumi ink painting

Sumi ink is a traditional East Asian ink made from compressed carbon black — either lamp black or pine soot — bound with animal glue and ground with water on an inkstone. It has been the primary medium of Chinese and Japanese ink painting and calligraphy for over a thousand years.

When applied to East Asian rice papers, sumi ink behaves in ways no Western medium can replicate. The paper absorbs the ink instantly and irreversibly. There is no correction. Every mark is a permanent commitment.

Peter Yuill works on twelve distinct Chinese rice papers, primarily Anhui Xuan paper and Tanxi papers at 97x180cm and 70x180cm. Each paper has a native mode: some reward layering, some punish it. Some hold a brush-dry feibai effect; others bleed a mark into a soft halo. The twelve substrates were systematically documented in the Crucible Year, with every work rated and the substrate recorded.

The champion substrate across the Crucible Year corpus is Red Star Semi-Cooked Anhui (S10): mean rating 7.094 across 32 works, lowest overwork rate of any surface tested.

Feibai (flying white) occurs when the brush moves fast enough that the bristles separate, leaving streaks of white paper visible within the stroke. It conveys speed, decision, and a brush loaded just to the edge of dry. Liubai (saved white) is the deliberate use of unpainted paper as an active compositional element — the void is not empty, it holds the marks.

At large format — 97x180cm — sumi ink on rice paper requires full-body gesture. The arm, shoulder, and torso become the primary instruments. Wrist-only marks at this scale produce nothing.

Peter Yuill works at a scale that transforms the medium. A 97x180cm sheet of rice paper laid flat requires the artist to work from multiple positions — standing, leaning, moving laterally. The marks record the movement of a body, not the control of a hand.

The Crucible Year Neon analytics tracked somatic scale across all 358 works: the proportion of whole-body gesture shifted from 35% in December 2025 to 70% by May 2026.