One hour is the unit almost every calendar is built from. Set it once, put the phone out of reach, and work until the glass empties. No countdown anxiety, just sand.
Set for 60 minutes and ready to start. Good for an hour of uninterrupted work, study, or practice.
An hour is long enough to finish something substantial and short enough to schedule without negotiation. It is the block most calendars, lessons and billing systems are built from, which makes it the least disruptive length to adopt.
Best suited to meetings, practice, billable work and revision.
No, and that is deliberate. The sand shows you where you are continuously, so there is no countdown to watch and no jolt at the end, just a soft bell when the glass empties.
SAND. Bottom pile is graded like the top one — no light/shadow split; its colour follows the time of day. Cone lift is what separates the raised pile from the flat bed behind it.
FALLING SAND. Ported from the app (lib/hourglass/hourglass_painter.dart) — accelerating grains, same constants. Defaults ARE the app's values.
PILE GATHERING. The sand spreads evenly first, then a pile starts small and builds. Start = when the mound begins, Ramp = how much more drain until it is the full solved cone.
Copy tuned stream back to me:
Horizon Y = 0.4475 — send me this number to bake it.
SUN — edit one key at a time.The rendered sun blends between these three by the sun's height, so whatever you set here is what shows at that time of day. Scrub Day time to preview.
Copy tuned keys back to me:
MOON — all parameters.Painted disc (plates/moon-tex.png) plus a shader halo and sky spill. Rises 21:45, sets 05:30.
Copy tuned moon back to me:
Place=1, then drag the sun/moon in the sky — it edits the phase you're viewing (scrub Day time to reach it). Moon shows today's real phase.
These edit the selected Time-of-day phase. Mid Day is the anchor (identity).
The Rim light (in Glass optics, locked) auto-scales per phase — strong at night, dim by day — so the hourglass stays the hero.
LOCKED — 100% outline
Set Show glass edge = 1, then drag the white dots(anchors) or blue dots (curve handles) — on either side; the two halves stay mirrored. Drag anywhere off a point to move the whole hourglass. 7 nodes per side: 5 around the top, 5 around the bottom, 1 neck.R restores the locked outline · Shift+R reverts to slider-driven.
Drag markers to shape the sea. Double-click a marker to flip it straight ⇄ curved (square = straight corner, circle = curve), double-click open water to add one, right-click one to remove. The outline passes exactly through every marker.
H panel · L locked params.
DAY plate — LOCKED. Everything (outline · sand · optics · water) is baked. This is the daytime look, used between sunrise and sunset. Reopen the locked menu only to re-tune. Next: the other phase plates + rendered sun/moon.
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