Compositing in 3D Space with Action > About Surfaces > Modifying Surfaces >

# Blending Settings

Use the settings in the Blending tab to adjust blending curve for each surface.

(a) Front matte curve(b) Back matte curve(c) Matte box(d) Blend Curves option box(e) Keyframe option box (f) Reset Selection box

Blend Curves option box
  Select whether to work with the surface blend curves or view the existing keyer blend curves.

Matte box
  Select the matte curve you want to adjust.

Keyframe Option box
  Select an option to Set, Delete, or Reset keyframes. If Auto Key is enabled, a keyframe is added automatically when you adjust the blending curve.

Home button
  Click to reset the curve view.

Reset Selection box
  Select whether to reset the selected curve (Reset) or all curves (Reset All) to their default settings.

For more information on using the blending curves, see Applying Blending Curves per Surface.