A library that extracts facial landmarks from a webcam feed (computed by OpenSeeFace) and converts them into Live2D® Cubism SDK parameters.
Disclaimer: This library is designed for use with the Live2D® Cubism SDK. It is not part of the SDK itself, and is not affiliated in any way with Live2D Inc. The Live2D® Cubism SDK belongs solely to Live2D Inc. You will need to agree to Live2D Inc.'s license agreements to use the Live2D® Cubism SDK.
This block diagram shows the intended usage of this library:
Video showing me using the example program: https://youtu.be/SZPEKwEqbdI
The old version using dlib is no longer actively maintained, but if you want to use it, you can get it on the dlib-stable branch.
An alternative version using mouse cursor tracking and audio based lip syncing instead of face tracking is available at https://github.com/adrianiainlam/mouse-tracker-for-cubism.
The main advantage is a much lower CPU load.
This library was developed and tested only on Ubuntu 18.04 using GCC 7.5.0.
Currently it only supports Unix-like environments, as I am using
<sys/socket.h> etc to communicate with OpenSeeFace. If there is demand
for it, I can try to make it work on Windows as well (contributions
welcome).
The library should only require C++11. The Cubism
SDK requires C++14. I have made use of one C++17 library (<filesystem>)
in the example program, but it should be straightforward to change this
if you don't have C++17 support.
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Clone OpenSeeFace from https://github.com/emilianavt/OpenSeeFace, refer to its documentation and install its dependencies.
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Install dependencies.
You will require a recent C/C++ compiler,
make,patch, and CMake >= 3.16. To compile the example program you will also require the OpenGL library (and its dev headers) among other libraries required for the example program. The libraries I had to install on Ubuntu 18.04 (this list may not be exhaustive) are:libgl1-mesa-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libglu1-mesa-dev -
Clone this repository
git clone https://github.com/adrianiainlam/facial-landmarks-for-cubism.git -
To build the library only: (Skip this step if you want to build the example program. It will be done automatically.)
cd <path of the git repo> ./build.sh
To build the example program:
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Download "Cubism 4 SDK for Native R3" from the Live2D website: https://www.live2d.com/en/download/cubism-sdk/download-native/.
Extract the archive -- put the "CubismSdkForNative-4-r.3" folder under the "example" folder of this repo.
Note: The Cubism SDK is the property of Live2D and is not part of this project. You must agree to Live2D's license agreements to use it.
-
Go into the "example/CubismSdkForNative-4-r.3/Samples/OpenGL/thirdParty/scripts" directory and run
./setup_glew_glfw -
Go back to the "example" directory and run
./build.sh -
Now try running the example program.
First, (in a separate terminal) go to where you have downloaded OpenSeeFace, and run
./python3 ./facetracker.py -v 4 --model 3 -MI tried models 3 and 4, and I think both work reasonably well. Please feel free to explore other options provided by OSF.
Back to the original terminal, from the "example" directory:
cd ./demo_build/build/make_gcc/bin/Demo/ ./Demo
Most command-line arguments are to control the Cubism side of the program.
Only one argument (--config) is used to specify the configuration file
for the Facial Landmarks for Cubism library.
--window-width,-W: Specify the window width--window-height,-H: Specify the window height--window-title,-t: Specify the window title--root-dir,-d: The directory at which the "Resources" folder will be found. This is where the model data will be located.--scale-factor,-f: How the model should be scaled--translate-x,-x: Horizontal translation of the model within the window--translate-y,-y: Vertical translation of the model within the window--model,-m: Name of the model to be used. This must be located inside the "Resources" folder.--old-param-id,-o: If set to 1, translate new (Cubism 3+) parameter IDs to old (Cubism 2.1) IDs. This is necessary, for example, for the Chitose model available from Live2D.--config,-c: Path to the configuration file for the Facial Landmarks for Cubism library. See below for more details.
Due to the differences in hardware and differences in each person's face,
I have decided to make pretty much every parameter tweakable. The file
"config.txt" lists and documents all parameters and their default values.
You can change the values there and pass it to the example program using
the -c argument. If using the library directly, the path to this file
should be passed to the constructor (or pass an empty string to use
default values).
The library itself is provided under the MIT license. By "the library itself" I refer to the following files that I have provided under this repo:
- src/facial_landmark_detector.cpp
- src/math_utils.h
- include/facial_landmark_detector.h
- and if you decide to build the binary for the library, the resulting binary file (typically build/libFacialLandmarksForCubism.a)
The license text can be found in LICENSE-MIT.txt, and also at the top of the .cpp and .h files.
The example program is a patched version of the sample program provided by Live2D (because there's really no point in reinventing the wheel), and as such, as per the licensing restrictions by Live2D, is still the property of Live2D.
The patch file (example/demo.patch) contains lines showing additions by me, as well as deleted lines and unchanged lines for context. The deleted and unchanged lines are obviously still owned by Live2D. For my additions, where substantial enough for me to claim ownership, I release them under the Do What the Fuck You Want to Public License, version 2. The full license text can be found in LICENSE-WTFPL.txt.
All other files not mentioned above that I have provided in this repo (i.e. not downloaded and placed here by you), excluding the two license documents and files generated by Git, are also released under the Do What the Fuck You Want to Public License, version 2, whose full license text can be found in LICENSE-WTFPL.txt.
In order to use example program, or in any other way use this library with the Live2D® Cubism SDK, you must agree to the license by Live2D Inc. Their licenses can be found here: https://www.live2d.com/en/download/cubism-sdk/download-native/.
This is not a license requirement, but if you find my library useful, I'd love to hear from you! Send me an email at spam(at)adrianiainlam.tk -- replacing "spam" with the name of this repo :).
Contributions welcome! This is only a hobby weekend project so I don't really have many environments / faces to test it on. Feel free to submit issues or pull requests on GitHub, or send questions or patches to me (see my email address above) if you prefer email. Thanks :)