Mosaic Bench
A mosaicist's bench with a half-set panel, and the point of the piece is what the materials DO. Five kinds of tessera share the panel - gold-leaf smalti, blue glass, glazed terracotta, white marble and riven slate - and every one of them is generated in code at load: its colour map, its bump relief and its metal and gloss, none of it painted in advance. Rake the light with the arrow keys and watch them disagree: the gold flares hard, the glass throws a tight glint, the terracotta answers softly and the slate just goes on being slate, its riven surface catching the grazing light along one axis. Pick a material with 1-5 and set the missing tesserae into the empty slots. Pad, harp and marimba - all sampled instruments.

Concept prompt
A mosaic-maker's workbench in a sunlit stone workshop: a large half-finished mosaic panel laid flat on a heavy oak bench, its surface a dense field of small square tesserae in wildly different materials — glinting gold-leaf smalti catching the light, deep lapis-blue glass, glossy glazed terracotta, matte white marble, dark riven slate — with sorting trays of loose tiles heaped by colour beside it, tile nippers and a mortar bowl, fine stone dust, a tall window throwing a warm shaft of daylight across the panel so every material answers the light differently, glossy tiles flaring bright specular highlights while matte stone stays soft, rich craft-workshop mood, high-end stylized 3D game render, no text, no watermark, no UI
