Difference between revisions of "Winding Style Parameter"

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[[Category:Parameters]]
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{{l|Category:Parameters]]
 
The Winding Style parameter is available in these layers:
 
The Winding Style parameter is available in these layers:
* [[Outline Layer]]
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* {{l|Outline Layer]]
* [[Region Layer]]
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* {{l|Region Layer]]
* [[Polygon Layer]]
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* {{l|Polygon Layer]]
* [[Star Layer]] (where it can be used to produce some [[Star_Layer#Winding_Style_Hacks|interesting effects]])
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* {{l|Star Layer]] (where it can be used to produce some {{l|Star_Layer#Winding_Style_Hacks|interesting effects]])
  
 
It determines the way in which Synfig decides whether a point is 'inside' or 'outside' which coloring the layer in.
 
It determines the way in which Synfig decides whether a point is 'inside' or 'outside' which coloring the layer in.
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The easiest way to see the distinction is to draw a region which contains a loop inside itself:
 
The easiest way to see the distinction is to draw a region which contains a loop inside itself:
  
[[Image:Goatse.png]] [[Media:Winding_style.sifz|source .sif file]]
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{{l|Image:Goatse.png]] {{l|Media:Winding_style.sifz|source .sif file]]
  
 
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 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.

Revision as of 08:29, 8 September 2009

Languages Language: 

English • čeština


{{l|Category:Parameters]] The Winding Style parameter is available in these layers:

  • {{l|Outline Layer]]
  • {{l|Region Layer]]
  • {{l|Polygon Layer]]
  • {{l|Star Layer]] (where it can be used to produce some {{l|Star_Layer#Winding_Style_Hacks|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:

{{l|Image:Goatse.png]] {{l|Media:Winding_style.sifz|source .sif file]]

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.


Languages Language: 

English • čeština