Texture Atlas
A large image containing many smaller sub-images, used in 3D graphics and games to reduce draw calls.
技术细节
In digital imaging, texture atlas plays a critical role in how images are stored, processed, and displayed. Modern image pipelines handle large through standardized APIs (Canvas, WebGL, ImageBitmap) that operate directly on GPU memory for performance. Understanding texture atlas is essential for optimizing web delivery, where image payload typically accounts for 40-60% of total page weight. Browser-based tools can manipulate large entirely client-side using the Canvas API without server round-trips.
示例
```javascript
// Texture Atlas: processing with Canvas API
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
ctx.drawImage(sourceImage, 0, 0);
const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
// Process pixels in imageData.data (RGBA array)
```