3D Compositing with Action > Action: Media >
Viewing Media

As you work with media, you can set properties for either the front, matte, or back clip. To view a clip exclusively, you can select it from the View box. View attributes are set per media.

(a) Front Clip box(b) Back Clip box(c) Matte Clip box(d) Media Rendering box

Media Rendering boxSets the rendering for each media. Select Interlaced, Progressive, or As Input (to render using the mode that corresponds to the source clip).

To enable a clip, select On from the applicable Clip box. To disable a clip, select Off. You may want to disable a clip in the following situations:

- Disable the back clip to use a solid black background in the animation.
- Disable the matte clip to work with the full-front image. To work with a cutout of the front image, make sure that the matte clip is enabled.

To edit a front clip's visibility:

1. Select media from the Media list.
2. From the Front Clip box, select one of the following options.

   Select: | To:
   --- | ---
   Front On | Display the front clip for the selected media.
   Front Off | Hide the front clip for the selected media.
   Front Lock | Lock the selected front clip at the current frame in the timebar. See Locking the Front or Back Clip.

To edit a back clip's visibility:

1. From the Back Clip box, select one of the following options.

   Select: | To:
   --- | ---
   Back On | Display the back clip.
   Back Off | Hide the back clip.
   Back Lock | Lock the back clip at the current frame in the timebar. See Locking the Front or Back Clip.

To edit a matte clip's visibility:

1. Select media from the Media list.
2. From a Matte Clip box, select one of the following options.

   Select: | To:
   --- | ---
   Matte On | Display the matte clip for the selected media.
   Matte Off | Hide the matte clip for the selected media.
   Matte Invert | Invert a matte. Black areas will be made white, and white areas will become black. TipTo invert multiple matte clips, Ctrl-click the matte media and select Invert in the Matte Clip box.

To display a clip in the image window:

1. Select the corresponding view from the View box.

   Select: | To display:
   --- | ---
   Media Front (or press F1) | The front clip.
   Media Back (or press F2) | The back clip.
   Media Matte (or press F3) | The matte clip.
   Result (or press F4) | The overall effect.

   NoteThe selected clip is also displayed as a proxy Image node in the Media list and Node bin. You can also display media clips by selecting Media List from the View box.