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TOPIC: Custom and User Effects

Custom and User Effects 2 years, 6 months ago #189751

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EffectAuthorDownloadCategoryCreatedThis version
Color barskhaverColorbars.fxUserDecember 5 2011November 15 2020

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This version of colorbars provides a SMPTE alternative to the Lightworks-supplied EBU version. It installs into the custom category "User", subcategory "Technical".
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189752

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EffectAuthorDownloadCategoryCreatedThis version
Colour swizzlerjwrlColourSwizzler.fxUserOctober 19 2017November 15 2020

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This is a diagnostic tool that "swizzles" the RGB channels to correct for bad channel assignments or to just generally produce dramatic results. The example above shows what happens with the various settings when they are applied to colour bars.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189754

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EffectAuthorDownloadCategoryCreatedThis version
Expand 16-235 to 0-255khaverExpand_16_235.fxUserMay 5 2011November 15 2020

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There are three tools in this group designed to manage broadcast colour space. This one expands legal TV white and legal TV black out to full gamut RGB. The other two clamp or reduce full gamut RGB video to legal TV white and legal TV black.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189755

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EffectAuthorDownloadCategoryCreatedThis version
Exposure levellerkhaverExposureLeveller.fxUserJune 10 2016November 15 2020

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This exposure levelling effect is designed to correct fairly static shots where the exposure varies over time. The top frame shows the example frame, the middle one is an over-exposed section of the video, and the bottom frame is the result of the effect.

To use it select a frame that has the best exposure and create a frame grab using the Lightworks command "Save current frame" that you will find in "Key Assignments". Import that frame and add it to the edit on a track under the video for the entire duration of the clip to be processed. Add the effect and check the box to view the sample frame then adjust the E1, E2, and E3 points to areas where there is minimal movement in the video clip. The only constraint is that the chosen points must not be in pure black or white areas.

If there is camera movement uncheck "Use Example Points for Video" and keyframe the V1, V2 and V3 points so they track the E1, E2 and E3 points. Uncheck "Show Example Frame" and the exposure in the video clip should stay close to the sample frame's exposure. Further fine tuning can be done with the "Tune" slider.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189756

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EffectAuthorDownloadCategoryCreatedThis version
HSV wheelkhaverHSVwheel.fxUserMarch 15 2013November 15 2020

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HSV Wheel is another colour analysis tool. It shows one or optionally two pixel reference points mapped onto the HSV wheel(s). Select the pixels with the on-screen cross-hairs and move and zoom the HSV wheels to wherever you need. The small dot in each wheel shows the hue and saturation of its associated reference point. The outer ring displays the brightness value.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189757

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EffectAuthorDownloadCategoryCreatedThis version
Safe area and crosshatchjwrlSafeArea.fxUserJune 9 2021June 9 2021

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This safe area and cross hatch generator can display EBU R 95, SMPTE RP 218, or legacy RP 218 safe area zones. Now largely redundant with digital images, it is probably most useful for viewfinder simulations and the like. Title safe, action safe and a centre cross can be selectively displayed, and centred 4:3 can also be enabled if it is needed.

Because the most likely use is as a viewfinder simulator this version has been rebuilt to ensure that the lines stay inside the active image area, regardless of its resolution and aspect ratio. If it is necessary to lock the patterns to the sequence size and aspect ratio the frame lock effect (FrameLock.fx) should be applied first.

The crosshatch pattern can be adjusted from 8 to 32 lines across the image width, and the line weight can be adjusted for best visibility.
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Last Edit: 2 weeks ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189758

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EffectAuthorDownloadCategoryCreatedThis version
Shrink 0-255 to 16-235khaverShrink_16_235.fxUserMay 5 2011November 15 2020

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There are three tools in this group designed to manage broadcast colour space. This one reduces full gamut RGB video to legal TV white and legal TV black. The other two apply a hard clip at TV white and TV black or expand legal TV white and legal TV black out to full gamut RGB.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189759

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EffectAuthorDownloadCategoryCreatedThis version
Show highs and lowsjuharticShowHiLo.fxUserMay 9 2016November 15 2020

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This tool is designed to help assess peak white and black overruns. It's very handy for ensuring broadcast compliance.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189760

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EffectAuthorDownloadCategoryCreatedThis version
TenderizerkhaverTenderizer.fxUserJune 3 2016November 15 2020

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This effect converts 8 bit video to 10 bit video by using spline interpolation on luma and chroma to create intermediate colours. Set your project to 10 bit or better and set the source width and height resolution for the best results. The vectorscope image (above) on the left shows the original image. Note the gaps in the trace. The one on the right has been tenderized. Note the fewer gaps, which means more colours.

Note: There will be a slight softening (tenderizing) of the image. Also, the alpha channel is not changed.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189761

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EffectAuthorDownloadCategoryCreatedThis version
Test greyscalejwrlTestGreyscale.fxUserApril 1 2017November 15 2020

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Inspired by an earlier discussion on these forums, this effect generates greyscale test patterns. A total of ten unique patterns can be generated. There are three versions of simple ten step bars, three of the compound bar pattern, two simple grey scales, and two compound grey scales. The variants of each are produced by selecting between BT.709 levels, full gamut decimal, or full gamut hexadecimal. Although it's possible to select both decimal and hex versions of both gradient patterns they produce identical results.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189762

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EffectAuthorDownloadCategoryCreatedThis version
Zebra stripesjwrlZebra_Stripes.fxUserApril 20 2016November 15 2020

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Here is another means of displaying highlight overrun and black underrun. This effect displays zebra patterning in over white and under black areas of the frame. The settings are adjustable but default to 16-239 (8 bit). Settings display as 8 bit values to make things simpler.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189763

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EffectAuthorDownloadCategoryCreatedThis version
AcidulatejwrlAcidulateFx.fxStylizeMay 14 2016November 15 2020

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Acidulate takes us back to the '60s. Back then, to see something like this you'd have to have been doing something illegal.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189764

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EffectAuthorDownloadCategoryCreatedThis version
Film grainkhaverFilm_Grain.fxStylizeJune 7 2013November 15 2020

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The image is a 50% enlarged version of a 1:1 crop of a 1920x1080 frame with the grain size and strength bumped up a bit so you can see it more clearly. It's "film" grain applied to luminance only. The effect adds grain to an image either as a rather clumpy film-style grain or as just random noise. You have the choice to apply the grain to just the luminance, just the chroma, luminance and chroma, or the RGB channels.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189765

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EffectAuthorDownloadCategoryCreatedThis version
Glass tileskhaverGlass_TilesFx.fxStylizeJune 10 2011November 15 2020

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Versions of this effect earlier than July 17 2017 may not perform as expected on Mac or Linux platforms. If you encounter problems download this version and update your effects library.
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Last Edit: 7 months, 1 week ago by jwrl.
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Custom and User Effects 2 years, 6 months ago #189766

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EffectAuthorDownloadCategoryCreatedThis version
Grain effectkhaverGrain_Effect.fxStylizeApril 17 2011November 15 2020

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Originally called just "Grain", this is a simple means of applying a video noise style of grain.
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Last Edit: 7 months, 1 week ago by jwrl.
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