This is a child page. You can use Parent in the quick nav bar at the top or the bottom of the page to navigate directly back to the parent of this page. Some child pages are more than one level deep, and in that case will require more than one Parent click to reach the outermost document level.

16.20 - Shear

Quick Reference to Scripting Command
a=SHEAR(amount, base, WRAP, ALPHA)
Items in CAPS are 0/1 or ranges with more options than just 0/1.
Ranges other than 0/1 are indicated by brackets, such as [0-2].


Unmodified Image

Shear of -1 with Bottom Base
and Wrap on

Shear of -1 with Bottom Base
and Wrap off, Alpha inserted
 Tip:

This operator may be applied directly to a Warp Layer, resulting in a geometric effect that may be removed from the underlying sublayer composite by simply zeroing out the warp or disabling that layer. In addition, the effect may be moved over the underlying sublayer composite without limit.

A visual reminder that this operator is warp-compatible is the small green dot at the upper right of its ICON in the toolbar.


Shear Operation Dialog

16.20.1 - Shear Controls

16.20.1.1 - Shear Amount

This is a floating point number where 1.0 represents the exact width or height of the image, which one depending on the shear base.

16.20.1.2 - Base of Shear

This sets the side of the image that remains stable; the opposite side is moved parallel to this side.

16.20.1.3 - Wrap

This tells the operator if pixels that move off on one edge should be wrapped back into the image past the opposing edge.

16.20.1.4 - Insert Alpha

If Wrap is off, then the question arises: What to do with the region that the image data has moved away from? You can either leave it the same as it was, or you can make it transparent. That's what the Insert Alpha checkmark causes to happen.

Keyboard Navigation
, Previous Page . Next Page t TOC i Index o Operators g Glossary
WinImages F/x, Morph and all associated documentation
Copyright © 1992-2007 Black Belt Systems ALL RIGHTS RESERVED Under the Pan-American Conventions
WinImages F/x Manual Version 7, Revision 6, Level A

Valid HTML 4.01 Loose
 

This manual was generated with wtfm
wtfm uses aa_macro and SqLite
aa_macro uses python 2.7
Page 97