# Sandbox.Animation.GraphBuilder.BlendSpace2DBuilder

A 2D blend space being built, created by [Sandbox.Animation.GraphBuilder.BlendSpace2D](/api/Sandbox.Animation.GraphBuilder/BlendSpace2D). Add entries
on the parameter plane, then use it anywhere a `F:Sandbox.Animation.GraphBuilder.BlendSpace2DBuilder.Node` is expected.

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

## Methods

- [`Add`](/api/Sandbox.Animation.GraphBuilder.BlendSpace2DBuilder/Add): Play `source` when the parameters are at `position`.