---
title: minificationFilterBias
framework: quartzcore
role: symbol
role_heading: Instance Property
path: quartzcore/calayer/minificationfilterbias
---

# minificationFilterBias

The bias factor used by the minification filter to determine the levels of detail.

## Declaration

```swift
var minificationFilterBias: Float { get set }
```

## Discussion

Discussion This value is used by the minificationFilter when it is set to trilinear. The default value of this property is 0.0.

## See Also

### Layer filters

- [filters](quartzcore/calayer/filters.md)
- [compositingFilter](quartzcore/calayer/compositingfilter.md)
- [backgroundFilters](quartzcore/calayer/backgroundfilters.md)
- [minificationFilter](quartzcore/calayer/minificationfilter.md)
- [magnificationFilter](quartzcore/calayer/magnificationfilter.md)