# `GSOutlineFormat.GSOutlineFormatVariableTTCubic`

*Case*

Variable cubic outlines in a `glyf` table.

## Declaration

```swift
case variableTrueTypeCubic
```

```objc
GSOutlineFormatVariableTTCubic
```

```python
GSOutlineFormatVariableTTCubic
```

## Discussion

> **Important**
> This format is not well-supported by Glyphs API and other software.