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# PHASEShape

A collection of points that connect to form a 3D volume.

```
class PHASEShape
```

## Overview

To define your scene’s important 3D volumes, create one or more of the following surfaces and add them to your scene’s [`shapes`](/documentation/PHASE/PHASESource/shapes) array:

- The audio-emitting surface of a volumetric [`PHASESource`](/documentation/PHASE/PHASESource)
- The audio-deflecting surface and texture of a [`PHASEOccluder`](/documentation/PHASE/PHASEOccluder)

## Topics

### Creating a Shape

[`init(engine:mesh:)`](/documentation/PHASE/PHASEShape/init(engine:mesh:))

Creates an object that the given geometric data shapes.

[`init(engine:mesh:materials:)`](/documentation/PHASE/PHASEShape/init(engine:mesh:materials:))

Creates an object of a specific material that the given geometric data shapes.

### Describing Surface Characteristics

[`elements`](/documentation/PHASE/PHASEShape/elements)

An array of objects that collectively describe the physical characteristics of a surface.

[`PHASEShape.Element`](/documentation/PHASE/PHASEShape/Element)

An object that describes the characteristics of a physical surface.


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