Finishing and Editing Masks
These mask settings can be found at the bottom right of the image window.
- Finish button
- Complete the creation of the mask without closing it. Once you click Finish, or a mask is closed, this button disappears.
- Edit Box button
- Enable to adjust the mask after it has been drawn. Press Ctrl and select multiple mask vertices to form the Edit Box.
- Offset Axis button
- Enable to be able to offset the axis position independently of the GMask. You can use the Axis menu controls or the axis icon in the image window.
- Centre button
- Click to centre the axis within the GMask shape. Available when Offset Axis is enabled.
Customizing Mask Settings
You can customize a mask's properties by changing settings in the node's Mask tab. Some settings may be different depending on how the GMask is accessed (such as through the GMask Tracer node).
- GMask Tracer Colour field
- Available when using a GMask through the GMask Tracer node. Displays the blend between the outgoing and incoming images inside the mask.
- Transparency field
- Displays the percentage of transparency of the mask. Editable.
- Intensity field
- Displays the blend between the outgoing and incoming image inside the mask. Editable.
- Smoothing field
- Displays the amount of smoothing applied to gradient regions. Editable.
- Blur field
- Displays the amount of blur applied to the GMask (with or without gradients). Editable.
- Camera box
- Specify which camera to take into account when tracking or viewing in Action Object view (F8). Select Auto Frame when the GMask is co-planar with the image.
- Camera field
- Displays the active camera number. Non-editable.
- Closed button
- Enable to connect a spline from the last point in the mask to the first control point (enabled automatically if you close the mask gesturally).
- Hole button
- Enable to define the attached 3D Shape spline as a hole. Disable to keep the spline filled. Available only if a 3D Shape node is parented to a GMask.
- Invert button
- Enable to apply settings to the area outside of the mask.
- Lock button
- Enable to lock the relative position of vertices.
- Animation box
- Select Shape Animation to group all keyframes into a single channel called shape; select Vertex Animation to locate all keyframes on their respective channels.
- Shape Animation Type box
- Select the interpolation type for the shape animation curve.
- Tolerance field
- Displays the segmentation value of the spline. Use to smoothen or wrinkle the spline. Editable.
- Blend Mode box
- Select a blending mode for the mask when it overlaps with another mask. Locked when a master blend option is selected in the Output menu.
- Mask Tracer Blend Mode box
- Available when using a GMask through the Mask Tracer node. Select a blending mode for the mask images.
- Correlation box
- Select how overlapping gradients are blending. This box is displayed when an Autodesk Maya Composite blending mode is selected in the Blend Mode box.
- Post Processing box
- Select whether to use the mask as a mask or occluder when encountering post processing effects. If you attach a Gmask to a specific post-processing node, for example a blooming effect, and choose Use as Occluder, only the effect will be blocked by the occluder.
- Active button
- Enable to activate the GMask for rendering. Disable to use the GMask for tracking purposes only.
- Motion Blur button
- Enable to apply a blur effect to the selected mask. (Motion blur must be enabled in the Setup menu.)
- Visibility box
- Select to apply the mask to the Right, Left, or Mono camera in a stereo scene.