# glb

**Repository Path**: cesiumjs/glb

## Basic Information

- **Project Name**: glb
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-09-10
- **Last Updated**: 2025-09-10

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# @3dtiles/glb

A TypeScript library for parsing and processing GLB 3D model files.

## Features

- Parse GLB files into structured data
- Validate GLB file integrity and structure
- Serialize GLB data back into binary format
- Support for GLB version 2
- Handle both JSON and binary chunks

## Installation

```bash
npm install @3dtiles/glb
```

## Usage

### Parsing a GLB file

```typescript
import { parseGLB, validateGLB } from '@3dtiles/glb';
import { readFileSync } from 'fs';

// Read GLB file as binary
const data = readFileSync('model.glb');
const glbFile = parseGLB(new Uint8Array(data.buffer));

// Validate the parsed file
if (validateGLB(glbFile)) {
  console.log('Valid GLB file');
  console.log('JSON content:', glbFile.jsonContent);
  console.log('Has binary chunk:', !!glbFile.binaryChunk);
} else {
  console.error('Invalid GLB file');
}
```

### Serializing a GLB file

```typescript
import { serializeGLB, GLBFile } from '@3dtiles/glb';
import { writeFileSync } from 'fs';

// Create or modify a GLBFile object
const glbFile: GLBFile = {
  header: {
    magic: 0x46546C67,
    version: 2,
    length: 0 // Will be calculated automatically
  },
  jsonContent: {
    scenes: [{ nodes: [] }],
    nodes: []
  },
  // ... add other chunks as needed
};

// Serialize to binary
const binaryData = serializeGLB(glbFile);

// Write to file
writeFileSync('new-model.glb', binaryData);
```

## API

### `parseGLB(data: Uint8Array): GLBFile`

Parses binary data into a GLBFile structure.

### `validateGLB(file: GLBFile): boolean`

Validates the structure and integrity of a parsed GLBFile.

### `serializeGLB(file: GLBFile): Uint8Array`

Serializes a GLBFile back into binary format.

### [GLBParser](file://d:\hub\代码测试\proj4ts\glb-ts-library\src\index.ts#L23-L191) class

Provides the core functionality with methods:
- `parse(data: Uint8Array): GLBFile`
- `validate(file: GLBFile): boolean`
- `serialize(file: GLBFile): Uint8Array`

## License

MIT