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Mã Pí Lèng – Sông Nho Quế – Hẻm Tu Sản, Hà Giang

A tabletop cross-section diorama of Tu Sản Canyon in Hà Giang: sheer streaked limestone walls drop to the jade Nho Quế River, with a long-tail boat on the water. The Mã Pí Lèng road, with its parapet, hairpins and lookout, runs along the cliff top above maize terraces and a small Hmong village.

Original GLB8.7 MB Poster

Mã Pí Lèng – Sông Nho Quế – Hẻm Tu Sản, Hà Giang 3D model

Left rail: colours and the 4 knobs the agent wrote into this model — they rebuild the geometry and go into your download. Right rail: looks for the viewer. Drag to orbit, scroll to zoom.

Triangles: 331,745
Vertices: 827,809
Meshes · materials: 56 · 56
Size (W × H × D): 1.3 m × 67 cm × 1.0 m
File: GLB · 8.7 MB
Animation: scene-motion · 12.0s
Style: Product
Collection: Landmarks

Palette · named materials

limestone#8A8B85
strata#5F615C
section#676862
ochre#9F7A58
scrub#3D5E2D
canopy#24432A
terrace#9BA846
crop#6A8A34
earth#765B42
shingle#A7A291
water#1C7D6B
foam#6CC0AA
asphalt#4D5157
paint#ECE8DC
parapet#D5D0C4
wall#C0956B
roof#5D6168
timber#7A5434
lacquer#B4432F
steel#8D939A
cloth#2F3D66
straw#D8C08A
mist#F3F6F7
plinth#4A5058

Use it

import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/ma-pi-leng-nho-que/8dba25c5b3/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z

const mixer = new THREE.AnimationMixer(gltf.scene);
gltf.animations.forEach((clip) => mixer.clipAction(clip).play());
// in your loop: mixer.update(delta)

How it was made

The brief given to 1DesignTool's “3D object” template:

Mã Pí Lèng Pass, the Nho Quế River and Tu Sản Canyon as a dramatic cross-section diorama. Sheer grey limestone canyon walls (Tu Sản, among the deepest canyons in Southeast Asia) plunge to a narrow, emerald-jade river (Nho Quế) that snakes along the bottom; high on the cliff edge the mountain road is cut into the rock with switchbacks, a low stone parapet and a lookout point; terraces of maize cling to the slopes and mist hangs in the gorge. A small long-tail boat on the river. Loop (12 s): the boat glides along the river and the water surface flows. Make it a polished, elegant model in the stylised-PBR direction: clean proportions, smooth curvature, soft bevels on every edge, crisp silhouettes and a restrained palette of named materials (name each material for what it is, e.g. "limestone", "red lacquer", "glazed roof tile", "sea water"); every material in the exported GLB must carry that name — set `material.name` on each one, because an unnamed material fails review. It must be recognisable at a glance as the real place. No text, lettering, logos or signage anywhere. Reference photos of the real place are in `reference/` (ref1.jpg, ref2.jpg, ref3.jpg): open and study them before planning if you can view images, and compare your hero capture with them before delivering. Natural sites and large complexes are presented as a tabletop diorama on a clean rounded plinth with slate-grey sides; state the real-world scale and the diorama scale in meta.notes. Hard requirement: the exported GLB must contain AT LEAST 150,000 triangles (target 200,000–350,000) — measure it before delivering. Spend the budget on real modelled detail (roof tiles, carvings, railings, mouldings, rock strata, foliage clusters, water surface, boats), never on invisible subdivision. Keep the GLB under 25 MB: index all geometry, instance repeated parts, no image textures.

Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
Generation: 7.81M tokens (95% cached) · ≈ $6.16 at API prices · 5-hour plan +7%, weekly plan +1%
Direction: Product · family scenes
three-check PASS · glb-lint PASS

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Named parts · 39

Mã Pí Lèng diorama
Canyon terrain
Cut-face strata
Slate plinth
Nho Quế River
Water surface
Flow ripple 1
Flow ripple 2
Flow ripple 3
Flow ripple 4
Flow ripple 5
Flow ripple 6
Flow ripple 7
Flow ripple 8
Flow ripple 9
Flow ripple 10
Flow ripple 11
Flow ripple 12
Flow ripple 13
Flow ripple 14
Flow ripple 15
Flow ripple 16
Flow ripple 17
Flow ripple 18
Flow ripple 19
Flow ripple 20
Flow ripple 21
Flow ripple 22
Mã Pí Lèng road
Stone parapet
Lookout platform
Forest canopy
Maize terraces
Hmong village
Gorge mist
Mist bank 1
Mist bank 2
Long-tail boat
Boat wake

Note: Real-world scale: the block shows about 2.4 km × 1.8 km of Tu Sản Canyon, about 700–900 m deep. Diorama scale: about 1:2000 horizontally, on a 1.30 × 1.00 m slate plinth, 0.667 m tall overall. Relief follows canyonDepth (1.0 = 1:2000). The road, parapet, lookout, houses and the long-tail boat are enlarged about 3× so they read at diorama scale. The model is 331,745 triangles, all indexed, with no textures and no text or signage. It has 24 named materials. The runtime clones a material per mesh on export, so the GLB holds 56 material entries with duplicate names (e.g. 22 "river foam" entries for the 22 animated ripples). Repeated parts (trees, maize tufts, posts, puffs) are merged into shared meshes rather than GPU-instanced, so the file needs no required glTF extension (only KHR_materials_clearcoat is used). Loop clip "scene-motion" (12 s, seamless, baked transforms): the boat glides upriver and back, flow ripples drift downstream and mist banks breathe. The water surface itself is static geometry. Part ids use the root "mapileng" because the kit’s part-id rule allows no hyphens. mistAmount sets the number and opacity of mist banks (2 at the default). glb-lint: 0 errors, 6 warnings (triangle and material counts above the direction defaults, which the brief asks for; duplicate cloned materials; overlapping sibling boxes; mist banks that float by design; scale heuristic). Its verdict prints UNVERIFIED because no requirements contract was supplied.