S_RackDefocusGenerates a defocused version of the source clip using a 'circle of confusion' convolution. This effect is often preferable to a gaussian blur for simulating a real defocused camera lens, because bright spots can be defocused into clean shapes instead of being smoothed away. The iris shape can be controlled using Points, Pointiness and Rotate, and the Use Gamma parameter can adjust the relative brightness of the blurred highlights.In the Sapphire Blur+Sharpen category.
Inputs:
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Parameters:
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Load Preset:
Push-button
.
Brings up the Preset Browser to browse all available presets for this effect.
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Save Preset:
Push-button
.
Brings up the Preset Save dialog to save a preset for this effect.
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Mode:
Popup menu, Default: Defocus Color
.
Selects between full color or monochrome defocus.
-
Defocus Color:
defocuses all channels of the source input.
- Defocus Mono: makes the source monochrome and then applies the defocus (faster).
- Defocus Mono: makes the source monochrome and then applies the defocus (faster).
-
Defocus Color:
defocuses all channels of the source input.
-
Mocha:
Default:
0,
Range:
0 or greater.
Brings up the Mocha window for tracking footage and generating masks.
-
Blur Mocha:
Default:
0,
Range:
any.
Blurs the Mocha Mask by this amount before using. This can be used to soften the edges or quantization artifacts of the mask, and smooth out the time displacements.
-
Mocha Opacity:
Default:
1,
Range:
0 to 1.
Controls the strength of the Mocha mask. Lower values reduce the intensity of the effect.
-
Invert Mocha:
Check-box, Default:
off.
If enabled, the black and white of the Mocha Mask are inverted before applying the effect.
-
Resize Mocha:
Default:
1,
Range:
0 to 2.
Scales the Mocha Mask. 1.0 is the original size.
-
Resize Rel X:
Default:
1,
Range:
0 to 2.
The relative horizontal size of the Mocha Mask.
-
Resize Rel Y:
Default:
1,
Range:
0 to 2.
The relative vertical size of the Mocha Mask.
-
Shift Mocha:
X & Y, Default:
screen center.
Offsets the position of the Mocha Mask.
-
Bypass Mocha:
Check-box, Default:
off.
Ignore the Mocha Mask and apply the effect to the entire source clip.
-
Show Mocha Only:
Check-box, Default:
off.
Bypass the effect and show the Mocha Mask itself.
-
Combine Masks:
Popup menu, Default: Union
.
Determines how to combine the Mocha Mask and Input Mask when both are supplied to the effect.
-
Union:
Uses the area covered by both masks together.
- Intersect: Uses the area that overlaps between the two masks.
- Mocha Only: Ignore the Input Mask and only use the Mocha Mask.
- Intersect: Uses the area that overlaps between the two masks.
-
Union:
Uses the area covered by both masks together.
-
Defocus Width:
Default:
0.1,
Range:
any.
The width of the defocus. This parameter can be adjusted using the Defocus Width Widget.
-
Rel Height:
Default:
1,
Range:
0.01 or greater.
The relative height of the iris shape. If it is not 1, circles become ellipses, etc.
Lens Parameters:
-
Shape:
Popup menu, Default: Circle
.
Determines the shape of the simulated camera iris.
-
Circle:
round.
- 3 sides: triangle.
- 4 sides: square.
- 5 sides: pentagon.
- 6 sides: hexagon.
- 7 sides: etc.
- 3 sides: triangle.
-
Circle:
round.
-
Show Shape:
Check-box, Default:
off.
Show the iris shape instead of the defocused image.
-
Roundness:
Default:
0,
Range:
any.
Modifies the shape of the simulated camera iris. A value of 1 produces a circle; 0 gives a flat-sided polygon with a number of sides given by the Shape parameter. Less than 0 causes the sides to squeeze inward giving a star shape, while a value greater than 1 causes the corners to squeeze inward, giving a flowery shape. Has no effect if the Shape is set to Circle.
-
Rotate:
Default:
0,
Range:
any.
Rotates the iris shape.
-
Bokeh:
Default:
0,
Range:
any.
Softens the outer edge of the iris shape, which gives a softer look to the defocused highlights. A negative value darkens the center of the iris shape, producing a ring-like defocus shape.
-
Lens Noise:
Default:
0,
Range:
0 or greater.
Increase to add noise to the iris shape, dirtying up the defocus a little. Can make the result more realistic. Turn up past 1 for a more stylistic result.
-
Noise Freq:
Default:
40,
Range:
0.01 or greater.
The frequency of the added noise. Ignored if Lens Noise is zero.
-
Noise Freq Rel X:
Default:
1,
Range:
0.01 or greater.
The relative horizontal frequency of the added iris noise. Increase to stretch it vertically or decrease to stretch it horizontally.
-
Noise Seed:
Default:
0.123,
Range:
0 or greater.
The seed value for the added noise. To make the noise appear different on each frame, animate this to be different on each frame. The actual value doesn't matter; only that it's different.
Other Parameters:
-
Gauss Blur:
Default:
0,
Range:
any.
If positive, a gaussian blur is also applied which smooths out the edges of the shapes. This might also darken the highlights because Gamma is not considered in the gaussian blur.
-
Use Gamma:
Default:
1,
Range:
0.1 or greater.
Values above 1 cause highlights in the source clip to keep their brightness after the defocus is applied.
-
Boost Highlights:
Default:
0,
Range:
0 or greater.
The amount to increase the luma of the highlights in the source clip. Increase this parameter to blow out the highlights without affecting the darks or mid-tones.
-
Highlight Threshold:
Default:
0.9,
Range:
0 or greater.
The minimum luma value for highlights. Pixels brighter than this will be brightened according to the Boost Highlights parameter.
-
Chroma Distort:
Default:
0,
Range:
any.
Adds some chromatic aberration around the edges of the image; red and blue wavelengths of light refract differently in real lenses, producing fringes of color where the rays strike the lens at oblique angles.
-
Color Fringing:
Default:
0,
Range:
any.
Color Fringing produces rings of color around every object in the image by varying the focal distance for each color channel. It gives a different style of chromatic aberration from Chroma Distort because it's not just in the image corners.
-
Brightness:
Default:
1,
Range:
0 or greater.
Scales the brightness of the result.
-
Offset Darks:
Default:
0,
Range:
any.
Adds this gray value to the darker regions of the result. This can be negative to increase contrast.
-
Mix With Source:
Default:
0,
Range:
0 to 1.
Interpolates between the defocused result and the original source. Set this to 1 for the original source.
-
Edge Mode:
Popup menu, Default: Reflect
.
Determines the behavior when accessing areas outside the source image.
-
Black:
Areas outside the source image are treated as black, which can produce
dark areas around the edges of the image.
Select this for fastest rendering.
- Repeat: Repeats the last pixel outside the border of the image.
- Reflect: Reflects the image outside the border.
- Repeat: Repeats the last pixel outside the border of the image.
-
Black:
Areas outside the source image are treated as black, which can produce
dark areas around the edges of the image.
Select this for fastest rendering.
-
Mask Use:
Popup menu, Default: Luma
.
Determines how the Mask input channels are used to make a monochrome mask.
-
Luma:
the luminance of the RGB channels is used.
- Alpha: only the Alpha channel is used, or if there is no valid Alpha channel the Red channel is used.
- Alpha: only the Alpha channel is used, or if there is no valid Alpha channel the Red channel is used.
-
Luma:
the luminance of the RGB channels is used.
-
Blur Mask:
Default:
0.05,
Range:
any.
Blurs the Mask input by this amount before using. This can provide a smoother transition between the masked and unmasked areas. It has no effect unless the Mask input is provided.
-
Invert Mask:
Check-box, Default:
off.
If on, inverts the mask input so the effect is applied to areas where the Mask is black instead of white. This has no effect unless the Mask input is provided.