You can display a reference image in the background of the result image to use as a guide for rotoscoping.

To display the reference image:

1. Enable the Show button.

   
   

   (a) Show button  (b) Reference box  (c) Transparency field  (d) Slip field  

   The reference image appears by default at 50% transparency.

2. Select the reference image you want to display from the Reference box.
3. Set the transparency for the reference image in the Transparency field.
4. Set the Slip field value to show different images from the reference clip.

   This option only works if the reference image you selected is from a clip with more than one frame.

   NoteThe Slip field is disabled if you select Matte or Saved from the Reference box.