Vertices Settings for Bicubic and Extended Bicubic Surfaces

For bicubic and extended bicubic surfaces, there are extra controls available in the Vertices tab.

(a) Subdivide button  (b) Shape Channel button  (c) Magnet Transformation box  (d) Reference Point fields  (e) Reset Selection box  (f) 3D Handles button

Subdivide button

Click to subdivide the extended bicubic surface into more sections (can be clicked multiple times). See Subdividing an Extended Bicubic.

X Position field

Positions the selected surface points along the X axis. Editable.

Y Position field

Positions the selected surface points along the Y axis. Editable.

Z Position field

Positions the selected surface points along the Z axis. Editable.

X Rotation field

Rotates the selected surface points along the X axis. Editable.

Y Rotation field

Rotates the selected surface points along the Y axis. Editable.

Z Rotation field

Rotates the selected surface points along the Z axis. Editable.

X Scale field

Scales the selected surface points along the X axis. Editable.

Y Scale field

Scales the selected surface points along the Y axis. Editable.

Z Scale field

Scales the selected surface points along the Z axis. Editable.

Proportional Scale button

Enable to scale the surface points proportionally.

Magnet button

Enable to transform a range of extended bicubic surface points. Use in conjunction with the Magnet Transformation box. See Transforming Multiple Points.

Magnet Transformation box

Select a transformation type to use when Magnet is enabled.

Magnet Curve Editor

Displays the weighted polarity from the centre to the edge of the magnet.

Magnet Curve Home button

Resets the position of the magnet curve after panning.

Magnet Curve Undo button

Undoes a change to the Magnet Curve Editor.

Magnet Curve Reset button

Resets the Magnet Curve Editor.

Vertex Position X field

Defines the position of the bilinear or bicubic vertices on the X axis. Editable.

Vertex Position Y field

Defines the position of the bilinear or bicubic vertices on the Y axis. Editable.

Vertex Position Z field

Defines the position of the bilinear or bicubic vertices on the Z axis. Editable.

Shape Channel button

Enable to use the Shape channel in the Channel Editor. Disable to use individual Vertex channels in the Channel Editor. See Reshaping Using the Channel Editor.

Sort button

Enable to sort non-flat surfaces where overlapping transparent regions are causing artefacts.

Auto Adjust button

Enable to scale adjacent tangents automatically. Auto Adjust creates a smooth curve between points in the deformation. If you want to work on a specific area of the image without affecting other tangents, disable Auto Adjust.

NoteIf you move a tangent explicitly, it is not affected by Auto Adjust. Click Reset Select or Reset Shape so that the tangents will be affected by the Auto Adjust mode.

3D Handles button

Enable to allow Z buffering of the vertices. By default, the vertices are always visible, regardless of their position in Z space in relation to other media.

Reset Selection box

Select whether to reset surface handles to their default position (Reset Shape) or reset selected points (Reset Select) on a bilinear or bicubic surface.