How to View Stygimoloch in 3D
Stygimoloch 3D Viewer runs a Late Cretaceous dome-headed pachycephalosaurid - length about 3 m (Size vs human uses 3 m), mass about 90-450 kg (panel about 200 kg) - often treated as subadult Pachycephalosaurus. Drag, zoom, toggle a 1.8 m person, and click a body part.
Open the Stygimoloch page and take the camera
Open the Stygimoloch 3D Viewer and wait for the facts panel to fill. When the status line says you can drag, orbit Stygimoloch with the pointer and zoom with the scroll wheel or a two-finger pinch. Fullscreen expands the wrapper so the controls stay visible beside the scene. After first paint a license-clean CC-BY-SA 4.0 glTF may swap in automatically from the CDN; if that load fails the page stays on the procedural dome-headed biped silhouette with zero regression.
Use the four Stygimoloch controls under the canvas
Under the Stygimoloch canvas, four controls handle view and scale:
- Fullscreen - fills the display while keeping the buttons visible
- Stop rotation / Auto-rotate - freezes or resumes auto-spin
- Idle motion - adds subtle body sway; tap again for Stand still
- Size vs human - shows a 1.8 m person at the honest length ratio used by the viewer (3 m; other summaries about 3-4.2 m)
Read the Stygimoloch facts panel and click a body part
The Stygimoloch facts panel lists length about 3 m (NHM; other summaries about 3-4.2 m; Size vs human uses 3 m), standing height about 1.5-1.7 m at the hips, mass about 90-450 kg (panel about 200 kg mid-range), the Late Cretaceous window about 67-66 million years ago in western North America (Maastrichtian), herbivore diet (limited omnivory debated), naming from Galton and Sues 1983, and the growth-stage synonymy with Pachycephalosaurus that most specialists prefer. A short click - not a drag - on head, neck, or body surfaces a short fossil fact. Soft-tissue color is an artistic reconstruction. When the CC-BY-SA 4.0 glTF by seth the yutyrannus via Printables loads, the status text notes a real model with that credit - a stylized reconstruction, not a laser scan. This model is not a fossil-accurate skeleton. For the adult form see the Pachycephalosaurus 3D Viewer.
What the Stygimoloch how-to guide is not
The Stygimoloch how-to guide is a controls walkthrough for the in-browser viewer only - it does not place the model in your room (no AR), does not claim Stygimoloch is proven distinct from adult Pachycephalosaurus, does not invent soft-tissue color accuracy, does not invent game score or win states, and does not claim the optional glTF is a scientifically exact reconstruction. For the size story see Stygimoloch size comparison. For trade-offs versus phone AR apps see Stygimoloch 3D viewer vs AR apps.
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