There are several parameters which control how the warped image is rendered and are located under the Warp label.
| Use: | To: |
|---|---|
| Timing | Set the timing of the deformation. The default state is Global where all shapes deform at the same time based on the interpolation you set (see below), or you can select the timing to be on a per shape basis allowing you to deform various features on differing schedules. |
| Interpolation | Define how much of the warp is applied in the final rendering. A value of 0 means that the image is passed through unchanged. A value of 50 means that the image is deformed 50% of the distance toward the destination shapes. |
| Warp Invert | Send the warp backwards. Used in the morphing workflow—see Morphing Between Two Images. |
There are several parameters which control how the image warp transformation is computed and they are located under the Render label.
| Use: | To: |
|---|---|
| Quality | Control the quality versus speed of the deformation as higher quality warping takes more computation time. If you experience discontinuities or warps that are not smooth, or if the animation has regions that do not warp smoothly over time you should increase the Quality setting. |
The warp of the image is computed to satisfy the constraints defined by the drawn shapes, and still be as smooth as possible. The choice of smoothing criteria is Rigid or Skew.
| Use: | To: |
|---|---|
| Smoothing | Select the smoothing criteria; skew is a mode where the image transformation is locally constrained towards a 2D affine transformation, and the image is allowed to skew as it tries to find the smoothest warp. In Rigid mode, the image is locally constrained to an angle preserving similarity transformation where skew is discouraged but not impossible. |
(a) Skew (b) Rigid
| Use: | To: |
|---|---|
| Boundary | Set the image boundary to either Fixed or Free. Fixed holds the border of the image in place while Free lets the image expand beyond the image border. |
(a) Fixed (b) Free
Like the Garbage Mask, the Warp 2D tool's Output tab contains a crop tool and user settings controls—see Output Tab Settings.
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