TERMINAL 03 · SHAPE CHECK · SHAPE EXPLORERS
ShadowShapers.
One object. Three surprises. So much to discover.
← DEPARTURES / UNLIKELY BAGGAGE → / GATE ∞
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SHADOW INSPECTION REQUIRED
Click a square to remove its column of blocks. Click it again to restore it. Choose Front, Side or Top, then make your parcel and scan its shadows.
CLICK BLOCKS TO CUT
keep cut through
WANTED SHADOW
Preparing your first parcel…
03 / THE SHAPE CHECK
Can you match all three shadows?
Make your cuts, then predict: which shadow will change most?
Sound starts after you interact.
How does this strange machine work?
Each square removes a column of blocks from the same parcel. Front, side and top silhouettes must all match. Click a removed square again to restore that column in this direction. Cuts from other directions still apply. Undo is always allowed. Earn a passport stamp by clearing each of twelve commissions.
The shadows are orthographic: parallel light rays, with no perspective distortion. Scoring samples the centers of the 25 squares in each shadow, from the actual generated triangles. The grid-aligned shapes make this an exact discrete puzzle; this is not a general photograph or curved-shadow matcher.
Predict which other shadow a cut will change. A grey square means you removed material the target needs. Can you earn a no-hint clearance?
Real tools behind the trick
Cut individual blocks freely. The browser builds the resulting mesh. When the complete shape matches our native NVIDIA USD BRep library, it loads that verified object and offers its exact USD download. Other shapes remain browser meshes without native verification. The native engine does not run in your browser. The same derived geometry supplies the 3D view and all three shadow tests. Toolkit projection APIs are not used.
This is a geometry game, not a physics or structural validation system. Your block cuts and passport are saved only in this browser. No account or upload is required.