Difference between revisions of "Winding Style Parameter"
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The Winding Style parameter is available in these layers: | The Winding Style parameter is available in these layers: | ||
* [[Outline Layer]] | * [[Outline Layer]] | ||
Revision as of 19:24, 14 September 2008
The Winding Style parameter is available in these layers:
- Outline Layer
- Region Layer
- Polygon Layer
- Star Layer (where it can be used to produce some interesting effects)
It determines the way in which Synfig decides whether a point is 'inside' or 'outside' which coloring the layer in.
The Winding Style parameter has two possible values:
- Non Zero
- Even/Odd
The easiest way to see the distinction is to draw a region which contains a loop inside itself:
The top two images have their region winding styles set to "Non Zero" and the bottom two have their region winding styles set to "Even/Odd". "Even/Odd" makes the region see-through when it crosses itself.
The left two images have their outline winding styles set to "Non Zero" and the right two have their outline winding styles set to "Even/Odd". "Even/Odd" makes the outline see-through when it crosses itself.
http://dooglus.rincevent.net/synfig/regions.html has notes I made while investigating how region filling works, and describes the Winding Style parameter.
