
Walkable demo
Cretaceous floodplain
Walk a 60 by 47 metre floodplain built from the Dinosaurs and Prehistoric Life pack: twenty-one animals at real scale, from velociraptors and a nest with a hatchling to a roaring tyrannosaurus, a brachiosaurus and a diplodocus.
About
One scene from 24 of the pack's 45 models, on plain ground in the outdoor preset with daylight, among ten tree ferns.
You start at the south edge beside a pack of three feathered velociraptors, a footprint slab and a skull fossil. Ahead are the triceratops pair and a styracosaurus, the roaring tyrannosaurus, and further off the stegosaurus, an ankylosaurus, a pachycephalosaurus, a kentrosaurus, an allosaurus and a dilophosaurus. A nest with eggs and a hatchling sits under a standing quetzalcoatlus, two gallimimus run along the west edge, the spinosaurus and a dimetrodon hold the corners, and the brachiosaurus and diplodocus stand at the north end with a parasaurolophus between them and a pteranodon soaring above.
Nothing moves: this pack ships without animation clips, so every animal holds its pose. The ice age steppe and marine reptiles in the pack are not placed here.
Every piece here is a published model from the pack, placed by hand. Walk with the keys or touch, and approach a piece to see it move if it has animation. Colliders, navigation and gameplay are yours to add.
Points of interest
Raptor pack
Three feathered velociraptors at the edge of the floodplain, with a footprint slab and an exposed skull fossil nearby. Every animal here is at real scale.
velociraptor feathered (Dinosaurs and Prehistoric Life)The nest
A nest with eggs and a hatchling, watched by a standing quetzalcoatlus and a stegosaurus.
nest with eggs (Dinosaurs and Prehistoric Life)Triceratops
A triceratops and a charging triceratops, with a styracosaurus behind them.
triceratops (Dinosaurs and Prehistoric Life)Tyrannosaurus
The roaring tyrannosaurus is 12 m long and 6.8 m tall. An allosaurus and a dilophosaurus hunt on the east side.
tyrannosaurus roaring (Dinosaurs and Prehistoric Life)Sauropods
A brachiosaurus and a diplodocus at the north end, 22 and 26 m long, with a parasaurolophus between them and a pteranodon overhead.
brachiosaurus (Dinosaurs and Prehistoric Life)Spinosaurus
The spinosaurus in the south-west corner, and two gallimimus running along the west edge.
spinosaurus (Dinosaurs and Prehistoric Life)
Use with an AI agent
Copy this prompt into your AI chat to rebuild the layout, then describe what to change.
Rebuild the "Cretaceous floodplain" demo scene from the Dinosaurs and Prehistoric Life pack in my project. Layout (JSON, every placement with its CDN URL): https://3dassets.dev/api/v1/demos/dinosaurs-and-prehistoric-life Pack manifest: https://3dassets.dev/api/v1/packs/dinosaurs-and-prehistoric-life Demo page: https://3dassets.dev/demos/dinosaurs-and-prehistoric-life - 36 placements of 24 models; units are metres, +Y up, rotation is yaw in degrees about +Y - Spawn at (0, 0, 20) facing 180 degrees; eye height 1.6 m - Licence: CC0 1.0 Universal (no attribution required) - Loading: three.js GLTFLoader, one load per distinct model, cloned per placement; no decoders required
Also available as JSON or Markdown, and via the MCP server.
Models in this demo
brachiosaurus (Dinosaurs and Prehistoric Life)
brachiosaurus with high shoulders and elevated neck.
diplodocus (Dinosaurs and Prehistoric Life)
diplodocus with long low neck and whip tail.
parasaurolophus (Dinosaurs and Prehistoric Life)
parasaurolophus with swept hollow cranial crest.
triceratops (Dinosaurs and Prehistoric Life)
triceratops with three horns and broad frill.
triceratops charging (Dinosaurs and Prehistoric Life)
triceratops with three horns and broad frill, lowered charging head.
tyrannosaurus roaring (Dinosaurs and Prehistoric Life)
tyrannosaurus with balanced horizontal tail, digitigrade hind limbs and large predatory skull, head-up open-jaw pose.
stegosaurus (Dinosaurs and Prehistoric Life)
stegosaurus with paired dorsal plates and tail spikes.
ankylosaurus (Dinosaurs and Prehistoric Life)
ankylosaurus with low armoured torso and bony tail club.
allosaurus (Dinosaurs and Prehistoric Life)
allosaurus with balanced horizontal tail, digitigrade hind limbs and large predatory skull.
dilophosaurus (Dinosaurs and Prehistoric Life)
dilophosaurus with balanced horizontal tail, digitigrade hind limbs and paired cranial crests.
pachycephalosaurus (Dinosaurs and Prehistoric Life)
pachycephalosaurus with thick skull dome.
styracosaurus (Dinosaurs and Prehistoric Life)
styracosaurus with radiating frill spikes.
kentrosaurus (Dinosaurs and Prehistoric Life)
kentrosaurus with paired dorsal plates and tail spikes.
spinosaurus (Dinosaurs and Prehistoric Life)
spinosaurus with balanced horizontal tail, digitigrade hind limbs and long crocodile-like muzzle and dorsal sail.
dimetrodon (Dinosaurs and Prehistoric Life)
Dimetrodon synapsid with sprawling limbs, deep skull and tall dorsal sail; not a dinosaur.
velociraptor feathered (Dinosaurs and Prehistoric Life)
velociraptor feathered with balanced horizontal tail, digitigrade hind limbs and feathered forearms and tail fan.
gallimimus (Dinosaurs and Prehistoric Life)
gallimimus with balanced horizontal tail, digitigrade hind limbs and small beaked head and long legs.
pteranodon soaring (Dinosaurs and Prehistoric Life)
pteranodon soaring with long toothless bill, cranial crest and extended membranous wings and supporting wing finger.
quetzalcoatlus standing (Dinosaurs and Prehistoric Life)
quetzalcoatlus standing with long toothless bill, cranial crest and folded membrane wings used as quadrupedal supports.
nest with eggs (Dinosaurs and Prehistoric Life)
nest with eggs as an original prehistoric habitat or fossil-study prop.
hatchling (Dinosaurs and Prehistoric Life)
hatchling as an original prehistoric habitat or fossil-study prop.
footprint slab (Dinosaurs and Prehistoric Life)
footprint slab as an original prehistoric habitat or fossil-study prop.
exposed skull fossil in rock (Dinosaurs and Prehistoric Life)
exposed skull fossil in rock as an original prehistoric habitat or fossil-study prop.
tree fern (Dinosaurs and Prehistoric Life)
tree fern as an original prehistoric habitat or fossil-study prop.