Blur Layer
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Revision as of 00:56, 30 December 2012
Contents
About Blur Layer
Blur is a graphical effect that aims to imitate an unfocused image. In a photography context blur can occur when the focal point of the lens is not at the right position of the target of the photograph. Also blur can have other origins. Blurs can happen as the result of a poor exposure during its recording (too long exposure time for a large movement of the object or a high movement of the recorder). Also blurring occurs when you use a very wide aperture (f4). In that case the objects that are out of focus are very blurred compared to the situation where the aperture is fully closed (f22).
In a graphical context, blurs are effects that imitate those situations (with more or less success).
Specific Parameters
The specific parameters for the Blur Layer are:
| Name | Value | Type |
 Z Depth
|
0.000000 | real |
| Amount
|
1.000000 | real |
 Blend Method
|
Composite | integer |
 Size
|
6.000000pt,6.000000pt | vector |
| Type
|
Fast Gaussian Blur | integer |
Size
The Size parameter controls how big the blur is. Depending on that value the blur can have different effects. Render time quickly increases as you increase the size parameter, so be careful.
This parameter is a compound value of two real numbers (x and y). Each indicates how big the blur is in its direction (x or y).
See the samples to get an idea of the variation of the sizes.
Samples images are missing... you reading that.... yes you can do it !
Types
There are 5 types of blur in synfig:
Samples
Here are some samples of Blurs.
Fast Gaussian
| Fast Gaussian Blur | |
|
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Box
| Box Blur | |
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Cross Hatch
| Cross Hatch Blur | |
|
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Disc
| Disc Blur | |
|
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Gaussian
| Gaussian Blur | |
|
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| Fast Gaussian Blur over all the layers |
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See also
- Radial Blur Layer with a radial control of the size of the blur.
- Motion Blur Layer a type of blur that aims to simulate a motion blur (the one that happens when the object's movement is too fast for the exposure time). It is controlled by a single parameter called "Aperture".
