QuantizedMeshLoader

The QuantizedMeshLoader module reconstructs mesh surfaces from the quantized mesh format.

Loader	Characteristic
File Extension	.terrain
File Type	Binary
File Format	Encoded mesh
Data Format	Mesh
Supported APIs	load, parse, parseSync
Decoder Type	Synchronous
Worker Thread Support	Yes
Streaming Support	No

Usage

import {QuantizedMeshLoader} from '@loaders.gl/terrain';
import {load} from '@loaders.gl/core';

const options = {
  'quantized-mesh': {
    bounds: [0, 0, 1, 1]
  }
};
const data = await load(url, QuantizedMeshLoader, options);

Options

Option	Type	Default	Description
quantized-mesh.bounds	array<number>	[0, 0, 1, 1]	Bounds of the image to fit x,y coordinates into. In [minX, minY, maxX, maxY].
terrain.skirtHeight	number	null	If set, create the skirt for the tile with particular height in meters

Remarks

Future Work

• Skirting. The Quantized Mesh format includes data on which vertices are on each edge, which should assist in creating a skirt.
• Use optional Quantized Mesh extensions, such as vertex normals.
• Closer integration into tile culling. Quantized Mesh headers, the first 88 bytes, describe a tile's bounding volume and min/max elevations. Just the headers could be parsed while deciding whether the tile is in view. Upon verifying visibility, the rest of the tile's data can be parsed.