Live global terrain · CesiumJS

Upgrade your streaming terrain infrastructure.

Commercial blended land + bathymetry. Feature-preserving coastlines.

The world’s first commercial blended land-and-bathymetry terrain platform, engineered with attractive coastal collaring and feature-preserving coastlines. Stream a continuous global surface built for serious GIS, simulation and enterprise geospatial infrastructure.

*DEMO API LIMIT: USAGE: 10,000 TILE REQUESTS (DAILY). IF THE DEMO STOPS IT WILL RENEW WITHIN 24 HOURS.
01Global coverage90°N → 90°S
02Progressive detailZoom 0–13
03Streaming readyNative Quantized Mesh
Open tour full screen ↗
~850 GBpre-generated SQLite terrain
Feature-aware TINadaptive terrain geometry
GEBCO 2024blended global bathymetry
COPDEM 30 2023high-resolution land elevation
Platform integrations

One terrain service. Four ways to deploy.

QuantizedMesh.com is designed as a portable terrain foundation rather than a viewer-specific product. Deploy the same global terrain through CesiumJS, MapLibre, deck.gl or iTowns — choosing the rendering ecosystem that best fits globe visualization, web mapping, analytical overlays or immersive 3D geospatial applications.

CESIUMJSMAPLIBREDECK.GLITOWNS One global terrain foundation — four deployment ecosystems.
CESIUM QUANTIZED MESH◆FEATURE-AWARE TIN◆ADAPTIVE DELAUNAY◆VERTEX NORMALS◆HD WATERMASK◆HORIZON OCCLUSION◆WGS84 / ECEF◆SQLITE DEPLOYMENT◆ CESIUM QUANTIZED MESH◆FEATURE-AWARE TIN◆ADAPTIVE DELAUNAY◆VERTEX NORMALS◆HD WATERMASK◆HORIZON OCCLUSION◆WGS84 / ECEF◆SQLITE DEPLOYMENT◆
01 / Terrain intelligence

More shape. Less waste.

The terrain engine is built around adaptive triangulation rather than a single rigid meshing strategy. Regular Grid, Feature-Aware Grid TIN and Adaptive Delaunay options let geometry respond to terrain character while retaining efficient streaming and seamless tile continuity.

Adaptive terrain geometry

Multiple TIN strategies allow terrain construction to preserve meaningful ridgelines, cliffs, valleys and morphology without spending equal geometric complexity everywhere.

Regular Grid · Feature-Aware Grid TIN · Adaptive Delaunay
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Lighting-ready vertex normals

Per-vertex normals provide richer surface curvature and realistic shading cues, giving modern globe engines the information they need for detailed terrain lighting.

Richer lighting · curvature cues · compact extension
≈

High-definition watermasking

Accurate land/water classification is designed to preserve intricate shoreline detail, small islands and inland water features instead of reducing coastlines to coarse transitions.

Shoreline fidelity · islands · inland water
◎

Continuous global terrain

Coverage spans 90° north to 90° south, with progressive streaming from global overview levels through enhanced regional detail where higher-resolution source coverage is available.

Pole-to-pole · progressive LOD · one coherent surface
Quantized geometryNeighbour-aware edgesCrack-free continuityHorizon occlusionCompressed binary delivery
Industry comparison

Bathymetry at comparable viewing scales.

In these representative side-by-side views, panDEM bathymetry closely matches the terrain character visible in EMODnet, while the coastal collaring removes unnatural cliffs at land-to-water transitions. The comparison highlights the level of seafloor structure retained by the production-ready Quantized Mesh surface. EMODnet Bathymetry images and associated logos are the property of EMODnet and the European Union and are shown here solely for screenshot comparison purposes.

Comparison 01 Comparable oblique terrain view
panDEM blended terrain comparison view 1 panDEM
panDEM blended land + bathymetry
EMODnet reference terrain comparison view 1 EMODnet
EMODnet reference view
Comparison 02 Comparable regional seafloor view
panDEM blended terrain comparison view 2 panDEM
panDEM blended land + bathymetry
EMODnet bathymetry terrain comparison view 2 EMODnet
EMODnet reference view
02 / Global terrain intelligence

Eight source families. One terrain surface.

Rather than exposing disconnected elevation products, the platform evaluates and combines global DEMs with authoritative regional topo-bathymetric datasets in a unified terrain experience. Coverage-aware source selection, validation and quality controls preserve a consistent commercial GIS surface across source boundaries.

01

COPDEM 30

Primary high-resolution land elevation and the main global terrain foundation.

Primary land elevation
02

SRTM 30

High-quality terrain coverage used within the multi-source integration strategy.

Terrain coverage
03

SRTM 90

Broad-area fallback and continuity where the terrain engine requires resilient coverage.

Fallback + continuity
04

ASTER

Supplementary regional elevation used to strengthen source availability and terrain integration.

Regional enhancement
05

GEBCO

Global bathymetry and ocean terrain, integrated with terrestrial elevations for continuous land-to-seafloor geometry.

Bathymetry + ocean terrain
06

AusBathyTopo 250 m

Seamless Australian topography and bathymetry used for higher-detail regional terrain and post-tile fidelity validation.

Australia · regional topo-bathymetry
07

EMODnet DTM 2024

Harmonised European marine bathymetry used as an authoritative regional source for enhanced seafloor detail.

Europe · regional bathymetry
08

NOAA Coastal Relief

High-resolution U.S. coastal relief integrating offshore bathymetry and onshore topography for coastal terrain coverage.

United States · coastal topo-bathymetry
One terrain, not a catalogue of DEMs.

The integration layer is designed to maximise worldwide availability while presenting a consistent product across hemispheres and source boundaries.

01Global
sources
02Coverage
intelligence
03Terrain
construction
04Global
integration
05Quantized
encoding
06SQLite
deployment
03 / Processing pipeline

Designed once. Streamed everywhere.

Terrain generation happens ahead of production delivery. Multiple elevation sources are selected, validated and integrated; neighbour-aware edge management protects tile continuity; coastline and bathymetry processing establish a coherent global surface; and the resulting geometry is encoded as native Cesium Quantized Mesh.

The deployment therefore serves pre-generated compressed binary terrain instead of paying the computational cost of creating terrain on demand. The result is predictable streaming behaviour and lower runtime infrastructure complexity.

Source selectionValidationAdaptive TINCoastal blendingQuantizationPre-generation
See the deployment model →
04 / Coastline + bathymetry

Preserve the coast. Continue the terrain.

Coastline morphology is treated as a core terrain feature. Authoritative terrestrial elevations and GEBCO bathymetry are fused into a visually continuous surface while preserving recognisable shoreline geometry and reducing coastal artefacts.

Land elevationCOPDEM / SRTM / ASTER integration
Preserved morphologywatermask + seam-safe transition
GEBCO 2024bathymetry into ocean terrain

Preserved morphology

Shorelines, islands, archipelagos, estuaries, canals and fjords retain recognisable geometry instead of being blurred by crude transitions.

Seam-safe processing

Neighbour-aware processing and edge management are designed to minimise visible tile seams and coastline artefacts.

Continuous bathymetry

The terrain surface continues naturally from mountains and coastal shelves into shallow water and the ocean floor.

05 / Enterprise deployment

A planet-sized terrain stack. One portable deployment.

Approximately 850 GB of pre-generated terrain is delivered from a portable SQLite terrain database, simplifying hosting, replication and distribution while keeping runtime terrain generation out of the production path.

~850 GBSQLite TerrainPre-generated Quantized Mesh
BACKUPREPLICATESTREAM
01

Cloud

Deploy behind scalable terrain services and distribution infrastructure for high-volume concurrent access.

02

On-premise

Keep the entire global terrain package within controlled enterprise infrastructure with straightforward backup and replication.

03

Disconnected

Portable storage supports isolated and field environments where dependable terrain must remain available without external data services.

04

Predictable production performance

Pre-generated terrain reduces server-side generation overhead, supporting low CPU utilisation and consistent high-throughput streaming behaviour.

06 / Technical profile

Built for serious globe rendering.

FormatCesium Quantized Mesh 1.0
TileJSON2.2.0
ProjectionEPSG:4326
SchemeTMS
Coverage90°N to 90°S · 180°W to 180°E
Storage~850 GB SQLite terrain database
Zoom range0–13
Terrain sourcesCOPDEM 30 · SRTM 30 · SRTM 90 · ASTER
Land vertical datumCOPDEM 30 · EGM2008 (EPSG:3855)
BathymetryGEBCO 2024 · 15 arc-sec (~450 m)
Bathymetry vertical datumGEBCO · Mean Sea Level (assumed)
GeometryRegular Grid · Feature-Aware TIN · Adaptive Delaunay
ExtensionsOct-encoded Vertex Normals · High-Definition Watermask
Rendering metadataHorizon Occlusion · Progressive LOD
Coordinate modelWGS84 / ECEF compatible
DeliveryCompressed binary terrain streaming
DeploymentCloud · on-premise · disconnected
layer.json
{
    "tilejson": "2.2.0",
    "format": "quantized-mesh-1.0",
    "version": "1.0.0",
    "projection": "EPSG:4326",
    "scheme": "tms",
    "hasWaterMask": true,
    "hasVertexNormals": true,
    "tiles": [
        "{z}/{x}/{y}.terrain"
    ],
    "bounds": [
        -180,
        -90,
        180,
        90
    ],
    "minzoom": 0,
    "maxzoom": 13,
    "extensions": [
        "octvertexnormals",
        "watermask"
    ]
}
PRE-GENERATEDSTREAMING READYGLOBAL

Compact geometry, useful rendering metadata

Quantized Mesh combines compact vertex and triangle data with terrain-specific extensions. Oct-encoded vertex normals enrich lighting, watermask data distinguishes land and water, horizon occlusion metadata supports globe-scale rendering efficiency, and progressive quadtree levels-of-detail keep delivery appropriate to the viewer’s distance.

07 / Mission profiles

One terrain foundation. Many demanding systems.

The platform is designed for professional applications that value dependable worldwide terrain, visual consistency, deployment control and predictable streaming behaviour.

01

Digital Twins

A consistent global surface for city, infrastructure and planetary-scale 3D environments.

02

Defence & Intelligence

Controlled deployment options for simulation, visualisation and geospatial mission environments.

03

Aviation

Progressive terrain suitable for terrain-aware visualisation and synthetic-world applications.

04

Maritime

Land, coastline and bathymetry brought together in one continuous terrain surface.

05

Simulation

Pre-generated global terrain that supports repeatable scenarios and predictable rendering behaviour.

06

GIS & Planning

High-performance 3D context for GIS, infrastructure planning and environmental modelling.

08 / Data validation

Measured against the source.

Production terrain is validated after tile creation against its source surfaces. The supplied programme records six completed runs across GEBCO Level 10 and three authoritative Level 13 regional datasets, totalling 3,840 terrain tiles and 16,224,000 elevation comparisons with zero failed tiles and zero invalid samples.

VALIDATION RECORD Traceable post-tile fidelity

Review source datasets, survey coordinates, reference systems and residual statistics for GEBCO, AusBathyTopo, EMODnet and NOAA Coastal Relief Model validation runs.

RUNS6 completeLevel 10 + Level 13
TILES3,8400 failed
VALID SAMPLES16,224,0000 invalid
GEBCO RMSE5.6839 mpooled · 3 Z10 runs
GEBCO MAE3.5000 mmean · 3 Z10 runs
GEBCO BIAS−3.4589 mpooled signed error
GEBCO P9511.6067 mmean regional P95
REGIONAL Z133 sourcesAustralia · Europe · U.S.
Validated source familiescompleted supplied records
SourceLevelSamples
GEBCO1012,979,200
AusBathyTopo 250 m131,081,600
EMODnet DTM 2024131,081,600
NOAA Coastal Relief Model131,081,600
COMMERCIAL GIS QA

Source-aware validation, published with context.

Residuals are reported as derivative-fidelity measurements: they quantify how closely the produced terrain follows the selected source after processing, rather than claiming independent ground-truth accuracy.

Regional Level 13 tests retain their own datum and resolution context, while the GEBCO Level 10 record reports a project-specific engineering QA assessment for smoothed global bathymetry.

QuantizedMesh.com

Commercial terrain infrastructure.
From API access to full IP ownership.

Deploy QuantizedMesh.com at the level that fits your organisation. Choose low-friction API access for rapid integration, a dedicated on-location or private-cloud installation for controlled production environments, or acquire the complete proprietary terrain-generation pipeline and associated IP for mapping companies that require full operational ownership.

Built for GIS teams, mapping platforms, digital-twin operators, simulation providers and geospatial businesses that need dependable global terrain without inheriting the complexity of multi-source DEM fusion, coastline preservation, bathymetric blending and Quantized Mesh production.

API accessFastest path to production with minimal infrastructure. Private deploymentOn-location, on-premise or private-cloud installation. Pipeline + IPFull proprietary production capability for mapping companies.
Constructed by ClosedCompany in the Netherlands. Tel: +31 (0) 623870173