In photography, vignetting is a reduction of the image brightness toward periphery. It is often an undesired effect due to camera settings or lens limitations. But it is also deliberately used to draw attention to the center of the image. «Vignette» can produce this effect.
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These options are described in Del 2, «Common Features». |
Circle
Square
Diamond
The shape of the vignette (ellipse or circle for example) depends on Proportion setting.
How far out vignetting goes as part of half image diagonal.
Radius = 0.700
TODO.
Softness = 0.100
Falloff linearity controls the curve of the falloff from the center to periphery: set how fast is brightness reduced towards edges of the vignette.
Gamma = 1.00
Proportion is particular: with the default value (maxi) 1.00, the vignette is a circle in a square image and an ellipse in a rectangular image. Reducing Proportion, this ellipse tends to a circle.
Aspect ratio to use:
0.0 = 1:1
0.5 = 2:1
Diamond shape, proportion = 0.0 and squeeze = 0.5
1.0 = completely squeezed vertically
-0.5 = 1:2
-1.0 = completely squeezed horizontally
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To directly use squeeze factor as proportion, set Proportion to 0.0. |
Coordinates of vignette center. Origin is the upper left corner of the image. 1.00 is the right border of the image. The center can be placed outside of the image.
Rotation of the vignette. The vignette keeps its shape.
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Notat |
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These options are described in Del 2, «Common Features». |