- tiles land one at a time. The screenful a picked folder asks for was built all
at once, and a HEIC or a RAW in it is a decode of its own, so the strip stood
empty until every one of them was done: 2293ms on a roll of eighteen, with the
batch arriving in one go (0/18 then 18/18 in a single step). Tiles are built in
two lanes now and each one goes up the moment it is drawn — first picture at
36ms, then 1, 2, 4, 6, 8, 9, 11, 12, 14, 15, 16, 17, 18 of 18, done at 2496ms.
The threading is handed back between tiles (`scheduler.yield`), so a click
still answers while the strip fills: no long tasks either side, worst frame gap
169ms -> 164ms, a view toggle 49ms -> 41ms. The tiles are the same tiles; the
wall's is drawn from the same counter.
- the studio's look reaches the shelf. A frame graded in the studio writes the
tile the shelf draws, at neutral geometry — no turn, crop, watermark or frame,
since the shelf turns a tile itself — and every screen holding the tile is told
the moment it is written, so the row repaints without a reload.
- the shelf comes back on the frame the studio was holding. The frame a visit
opened is kept with the visit, and coming back from the studio raises it: the
strip centres it and the wall brings its card to the middle, even when the
frame sits in another folder of the same tree. A shelf that opened on whatever
it was left standing on sent the reader looking for the frame they had just
been working on.
- the frame's name stands under the picture, in the studio's own meta bar.
3dtours
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