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2024.x KeenTools FaceBuilder for Nuke

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KeenTools FaceBuilder for Nuke
   

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KeenTools FaceBuilder for Nuke

FaceBuilder is a Nuke node for building (sculpting) 3D models of a human’s face or head based on just a few photos. With FaceBuilder creating a head model With FaceBuilder you don’t need to be an experienced 3D modeler to create a quality 3D model with clean topology. It is as simple as working with PinTool: get a few photos with neutral faces from different angles and place a model on each of them to build a head or face model. The resulting model can be used, for example, for simple match moving with GeoTracker or for tracking facial gestures with FaceTracker.

You can also export the model from Nuke for further modifications in any other 3D software.

Nuke Indie support

Good news! All our nodes including FaceBuilder are finally available in Nuke Indie. You’d need to install the 12.2v4 version of Nuke and the 2020.1 version of the KeenTools package or newer. There are no functional limitations compared to the standard Nuke.

Works even with a single photo

The more photos you have, the better quality you can get. But sometimes all you have is just one photo or a frame from a footage and you still need to get your job done. So, we’ve got you covered — you’ll be surprised where just one image can get you!

Three built-in topologies

Whether you need a hi-poly model to shape as many facial features as possible, or a low-poly model to integrate it into some real-time workflows, we’ve got you covered! FaceBuilder has low-poly, mid-poly, and high-poly topologies that you can switch on the fly!

Focal length estimation

While we recommend setting up camera settings manually to achieve maximum preciseness, we know it’s not always possible. For such cases, you can use “Single Focal Length” and “Varying Focal Length” estimation modes. The first one works when you know the reference photos were taken with one camera and the same focal length. The second one can help if you’re not sure if it was a single camera or if there was a zoom lens.

AI-powered automatic face alignment

You don’t need to manually pin faces anymore! At least, not from scratch. Our face alignment is not yet always 100% accurate, so it requires some manual adjustments sometimes, but it radically reduces the time of shaping the models. So much, we’ve actually stopped doing this manually in our team while testing and we don’t want to go back!

Facial expressions support

If you’re after the ultimate quality and preciseness — you need photos with neutral facial expressions, but no worries if you can’t get them — now FaceBuilder supports facial expressions of FaceTracker, thus you can still get decent results even with non-neutral photos!

Total diversity

Our evergrowing statistical model already has data for humans of the widest age range from most places on Earth, so you shouldn’t face any problems modeling people from any part of the world!

Configurable model

You can switch on and off different parts of the 3D model customizing it to your needs. The shape is not being affected, so if you decide to switch something back when the model is ready — it won’t break anything!

Mixed picture format

You can use photos with different aspect ratios in the reference sequence. If you know the camera settings for every photo in the sequence — you can set up keyframes in the connected camera node. If you don’t know the camera settings — just turn on “Varying Focal Length” in FaceBuilder settings, the focal length will be estimated for each photo in the sequence.

Frequently Asked Questions

— How to load photos into FaceBuilder?

You need to create a Read node, load your photographs as a sequence in it, and then connect the Read node to ‘bg’ input of FaceBuilder.

— Do I need to connect a Camera node to FaceBuilder?

The quality of the model will be better if you use a Camera node that will reflect the settings of the camera used for making the reference photographs. The essential parameters you need to setup are: focal length and vertical/horizontal aperture (sensor/film-back size). If you don’t know what camera and focal length were used, you don’t need to connect a Camera node, but instead switch on focal length estimation — then a default Nuke Camera node will be used, later you can export the estimated camera as a Camera node.

— Can I use FaceBuilder with a video as a source?

Sure! Just don’t forget to set up your Camera node properly. Note that if the video was shot with a zoom lens and the focal length is changing but you don’t know the exact focal length for the frames you want to use — it’s better to use Varying Focal Length Estimation in FaceBuilder.

— What is ‘tex’ input for?

You can connect an image node that will be used as a texture for mesh colouring. In some cases it can help with visibility of the mesh and handiness of the pinning process.

— Does FaceBuilder use the photos in any way?

No, they’re only being displayed for you as references. FaceBuilder uses camera settings and pin positions to change the shape.

— What actually happens when I drag pins?

Using the statistical data FaceBuilder tries to find an optimal shape for the 3D model so it would match the disposition of all pins.

— Can I use FaceBuilder with a set of photos with different resolution or different focal length?

Starting from the version 2.1.0 — yes, you can. Though you should not forget to setup the connected Camera node accordingly — it should have keyframes with proper settings for each frame. If you don’t know camera settings for all photos, it’s better to use Varying Focal Length Estimation.

— I have a license for FaceBuilder in Nuke, do I need another license for FaceBuilder in Blender?

No! Installing a license allows using FaceBuilder in Nuke and Blender.

— I have a license for FaceTracker, do I need a license for FaceBuilder?

Yes! You can also purchase both licenses as a bundle for a reduced price!

— Can I use my custom head model?

Not at the moment. But we plan supporting this in future.

— Can I save (export) the model as a file?

Yes! Connect FaceBuilder node to a WriteGeo node and choose your favourite format.

— Can I use FaceBuilder in Nuke Indie?

Yes! Starting with the 12.2v4 version of Nuke.

 

The Foundry Nuke 12, 12.1, 12.2, 13, 13.1, 13.2, 14

 

KeenTools for Nuke 2024.1 (19 March 2024)

  • Minor bug fixes and improvements

 

KeenTools for Nuke 2023.2 (07 August 2023)

  • Video Analysis up to 2 times faster
  • Improved tracking performance up to 20%
  • TextureBuilder up to 3 times faster
  • Accelerated surface masking
  • New build for Nuke 14 running newer Linux systems (RHEL9)

KeenTools for Nuke 2023.1 (07 March 2023)

  • Minor bug fixes and improvements

KeenTools for Nuke 2022.3.0 (18 December 2022)

  • Added support for Nuke 14 (classic 3D nodes)
  • Minor fixes and improvements

KeenTools for Nuke 2022.2.4 (28 November 2022)

  • Better unicode support
  • Fixed user tracks in FaceTracker and GeoTracker
  • Minor fixes and improvements

KeenTools for Nuke 2022.2.0 (3 August 2022)

  • FaceBuilder can reconstruct faces with finer details
  • Added MetaHuman-compatible UV layout
  • GeoTracker, FaceTracker: added transform handles in 2D
  • FaceBuilder, FaceTracker: fixed align face for anamorphic footage and translated cameras
  • Nuke 11 support removed
  • Many minor fixes and UI tweaks

KeenTools for Nuke 2022.1.1 (14 April 2022)

  • Nuke 13.2 support
  • Minor fixes

KeenTools for Nuke 2022.1.0 (6 April 2022)

  • Regularisation improvements in FaceBuilder and FaceTracker
  • Fixed anamorphic lens support in FaceBuilder
  • Fixed scaling in export
  • Pins can be toggled
  • Improved tracking workflow when there are not enough features
  • Fixed exporting bugs
  • Improved Align Face behaviour
  • Minor UI tweaks
  • ‘Output transformed geometry’ in FaceBuilder is now deprecated
  • 2D-masking in GeoTracker is now completely strict
  • General performance improvements
  • More stable Hardware ID in License Server

— How to load photos into FaceBuilder?

You need to create a Read node, load your photographs as a sequence in it, and then connect the Read node to ‘bg’ input of FaceBuilder.

— Do I need to connect a Camera node to FaceBuilder?

The quality of the model will be better if you use a Camera node that will reflect the settings of the camera used for making the reference photographs. The essential parameters you need to setup are: focal length and vertical/horizontal aperture (sensor/film-back size). If you don’t know what camera and focal length were used, you don’t need to connect a Camera node, but instead switch on focal length estimation — then a default Nuke Camera node will be used, later you can export the estimated camera as a Camera node.

— Can I use FaceBuilder with a video as a source?

Sure! Just don’t forget to set up your Camera node properly. Note that if the video was shot with a zoom lens and the focal length is changing but you don’t know the exact focal length for the frames you want to use — it’s better to use Varying Focal Length Estimation in FaceBuilder.

— What is ‘tex’ input for?

You can connect an image node that will be used as a texture for mesh colouring. In some cases it can help with visibility of the mesh and handiness of the pinning process.

— Does FaceBuilder use the photos in any way?

No, they’re only being displayed for you as references. FaceBuilder uses camera settings and pin positions to change the shape.

— What actually happens when I drag pins?

Using the statistical data FaceBuilder tries to find an optimal shape for the 3D model so it would match the disposition of all pins.

— Can I use FaceBuilder with a set of photos with different resolution or different focal length?

Starting from the version 2.1.0 — yes, you can. Though you should not forget to setup the connected Camera node accordingly — it should have keyframes with proper settings for each frame. If you don’t know camera settings for all photos, it’s better to use Varying Focal Length Estimation.

— I have a license for FaceBuilder in Nuke, do I need another license for FaceBuilder in Blender?

No! Installing a license allows using FaceBuilder in Nuke and Blender.

— I have a license for FaceTracker, do I need a license for FaceBuilder?

Yes! You can also purchase both licenses as a bundle for a reduced price!

— Can I use my custom head model?

Not at the moment. But we plan supporting this in future.

— Can I save (export) the model as a file?

Yes! Connect FaceBuilder node to a WriteGeo node and choose your favourite format.

— Can I use FaceBuilder in Nuke Indie?

Yes! Starting with the 12.2v4 version of Nuke.



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