Softimage SDK Programmer's Guide > Customizing Softimage using the SDK >

# Graphic Sequencer

The graphic sequencer gives you access to the Softimage display pipeline. Through the graphic sequencer, you can customize existing viewport modes with viewport callbacks, and add new viewport modes.

#### Topics in this section

- About Controlling the Hardware Display in Softimage
- Creating Softimage Graphic Sequencer (XGS) Plug-ins
- Viewport Callback Types