# Sandbox.Animation.GraphBuilder.BlendSpaceBuilder

A 1D blend space being built, created by [Sandbox.Animation.GraphBuilder.BlendSpace](/api/Sandbox.Animation.GraphBuilder/BlendSpace). Add entries
along the parameter axis, then use it anywhere a `F:Sandbox.Animation.GraphBuilder.BlendSpaceBuilder.Node` is expected.

- Kind: class
- Assembly: `Sandbox.Engine`
- Modifiers: sealed

## Methods

- [`Add`](/api/Sandbox.Animation.GraphBuilder.BlendSpaceBuilder/Add): Play `source` when the parameter is at `position`.