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How do lipsinс?
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You can set the value of a parameter using 'live2DModel.setParamFloat()' passing in the ID of the parameter and the value you want to set. For lip-syncing, you'd need to set the value each frame.
Below is how you could implement the parameter setting part:
private float mouthOpen; // Extracted from the volume of the voice audio, for example. private void update() { ... ... // Set the value for the parameter based on its ID. live2DModel->setParamFloat("PARAM_MOUTH_OPEN_Y", mouthOpen); ... ... live2DModel->update(); live2DModel->draw(); }