Glitch vs Trompe-l'œil
グリッチ / トロンプ・ルイユ
Glitch comes from UI Expression and Trompe-l'œil from Painting Techniques. One is style and the other technique. They are reached for with some of the same intent, which is where they get confused.
Glitch
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Refuses to hide error and corruption, exposing the fragility of the digital medium itself.
Trompe-l'œil
Hides the picture plane's boundary, aligning material, shadow and scale until you believe the thing is there.
| Glitch | Trompe-l'œil | |
|---|---|---|
| Era | digital | antiquity–present |
| Family | UI Expression | Painting Techniques |
| Kind | Style | Technique |
| Cues | Channel shift / Block noise / Scanlines / Dropout | Life size / Grounded shadows / Material rendering / Using the frame's edge |
| Best used for | Expressing uncertainty and system failure · A jolt of tension in music and video | An entrance of surprise for products and exhibitions · Making the boundary between screen and reality the subject |
| Type | Partially corrupt a monospace or plain sans | Treat letters as painted objects too, or keep them outside the illusion |
| Composition | Build the healthy composition first, then break part of it | Place life-size objects and shadows rigorously on a single plane |
| Material | RGB shift, compression noise, missing pieces | Wood, paper, metal, wear, light from one direction |
| Caution | Perpetual glitch loses meaning. Stage the difference between normal and broken. | Not mere realism. Design the viewpoint, distance and boundary that make the viewer misread. |