The Matte Threshold settings work with the Alpha channel of the selected background texture. Use the Matte Threshold slider to change the white threshold of the matte’s gradient. Double-click the Matte Threshold field to enter a precise value.
Activate Transp to make the Alpha channel blend with the foreground image. When disabled, the Alpha channel is only used to determine how the pixels are drawn. To take advantage of this feature, the Alpha channel of your clip or image must have a gradient.
The View Foreground Plane menu lets you select when to show the foreground plane. This field works with the View Near/Far plane option in the Camera View Options.
The View Background Plane menu contains the following options:
| Option | Function |
|---|---|
| Disabled | Disables the Background plane whether texture is being projected or not. |
| Always | Always shows the Background plane, even if no texture has been added. |
| When Media | Shows the Background plane only if a texture has been added. |
The Plane Distance field lets you specify a distance where the foreground plane is to be placed.
The Distance Mode menu lets you select whether the foreground plane is placed in relation to the camera interest or the camera.
The Distance Mode menu contains the following options:
| Option | Function |
|---|---|
| Relative to camera | Select to place the foreground plane relative to the camera. The foreground plane distance is measured in relation to the camera. This setting is the default. |
| Relative to Interest | Select to place the foreground plane relative to the camera interest. The foreground plane distance is measured in relation to the camera interest. |
| Absolute from Camera | Select to place the background plane relative to the camera. The foreground plane distance is measured in relation to the camera. |
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