TYPE: COP
TITLE: Deform COP

This operation deforms an image by moving the underlying UV coordinates. An
input plane is used to define the deformation.  It can also be thought of
as a per-pixel transform.

If the optional second input is connected, the specified plane from that 
input shall be used as the deform plane.

This plane can define the deformation in several ways:

Examples:
    UV Map      - The plane contains the UV coordinates of the input pixels.
		  (Hint: Use a UV Map generator to create a base UV map to 
		  manipulate)
    UV Shift    - The plane contains per-pixel translations to apply to the
		  image.  Floating point deform plane or planes with negative
		  values work best with this method.
    UV Gradient - The plane is a 1 channel mask. Pixels are moved in the
		  direction of the gradient (2D vector pointing in the
		  direction of greatest value increase). (Hint: Try using a
		  concentric ramp as a deform plane)

Parameters:
    Deform Plane   - The input plane that describes the deformation.
    Deform         - The deform method to use (see above)
    Scale          - The scale applied to the UV Shift or UV Gradient method
                     transformations.
    Image Wrap     - How UV coordinates above 1 or below 0 are wrapped back 
                     into the 0 to 1 range, if at all.

Mask & Plane Scope, Frame Scope page:
    Overview - See extra help (Middle click on the dialog '?' help).

Local Variables:
    L   - Sequence length
    S   - Start of sequence
    E   - End of sequence
    IL  - Input sequence length
    SR  - Sequence frame rate
    NP  - Number of planes in sequence
    W,H - Width and height of image
    I   - Image index (0 at start frame)
    IT  - Image time (0 at start frame)
    AI  - Current plane array index
    PI  - Current plane index
    PC  - Num of channels in current plane
