# PIXELFORMAT_ASTC_4x4

Variable · category: Graphics

Source: https://github.com/playcanvas/engine/blob/970d89f6d3bc6667f4e1f88153abd6e7e82ed52c/src/platform/graphics/constants.js#L779

ATC compressed format with alpha channel in blocks of 4x4.

```ts
const PIXELFORMAT_ASTC_4x4: 28 = 28
```