# GpuSurfaceHdrMetadata

`import { GpuSurfaceHdrMetadata } from "destack:gpu/binding";`

Surface HDR metadata.

```ds title="GpuSurfaceHdrMetadata"
export struct GpuSurfaceHdrMetadata {
    maxContentLightLevelNits: float64;
    maxFrameAverageLightLevelNits: float64;
    maxMasteringLuminanceNits: float64;
    minMasteringLuminanceNits: float64;
}
```

[language/library/src/gpu/binding/present.ds:88:97](https://github.com/destack-sh/destack/blob/main/language/library/src/gpu/binding/present.ds#L88-L97)

## Members

### `maxContentLightLevelNits: float64`

Maximum content light level in nits.

### `maxFrameAverageLightLevelNits: float64`

Maximum frame-average light level in nits.

### `maxMasteringLuminanceNits: float64`

Maximum mastering luminance in nits.

### `minMasteringLuminanceNits: float64`

Minimum mastering luminance in nits.