2011

Table Of Contents
There are several parameters which control how the image warp transformation
is computed and they are located under the Render label.
To:Use:
Control the quality versus speed of the deformation as higher
quality warping takes more computation time. If you experience
Quality
discontinuities or warps that are not smooth, or if the animation
has regions that do not warp smoothly over time you should in-
crease 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.
To:Use:
Select the smoothing criteria; skew is a mode where the image
transformation is locally constrained towards a 2D affine transform-
Smoothing
ation, 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.
476 | Chapter 19 Warping