The ApplyInstantIDControlNet node is part of the ComfyUI InstantID extension, which integrates the InstantID model into ComfyUI for enhanced person-specific image generation. This node specifically allows for the application of ControlNet with InstantID face embeddings to guide the style and features of generated images using keypoints and embeddings.
The ApplyInstantIDControlNet node is used to apply the effects of InstantID face embeddings combined with ControlNet in the generation process. This enables users to incorporate specific facial features and control dynamics into their creative workflows, resulting in more personalized and accurate image outputs.
The ApplyInstantIDControlNet node accepts the following inputs:
face_embeds (FACE_EMBEDS): These embeddings represent the facial features detected by the InstantID model. They guide the generation process to incorporate these features into the output.
control_net (CONTROL_NET): The ControlNet model applies transformations or effects to the image based on the facial embeddings and other conditions.
image_kps (IMAGE): This input represents the image with keypoints that guide the structure or pose of the face in the output. It is essential for aligning the generated features accurately.
positive (CONDITIONING): The positive conditioning information used in conjunction with control nets to influence the style or features positively associated with the output generation.
negative (CONDITIONING): The negative conditioning information used to suppress undesired features or styles during the generation.
strength (FLOAT): A value from 0.0 to 10.0 that determines the intensity of the influence that the ControlNet has on the image generation based on facial embeddings and keypoints.
start_at (FLOAT): A percentage value from 0.0 to 1.0 indicating when the effect of the ControlNet begins during the generation process.
end_at (FLOAT): A percentage value from 0.0 to 1.0 indicating when the effect of the ControlNet ends during the generation process.
mask (optional, MASK): A mask that can be applied to specify areas of the image that should be affected by the ControlNet influences.
The ApplyInstantIDControlNet node produces the following outputs:
positive (CONDITIONING): The adjusted positive conditioning output that integrates control net modifications based on the InstantID face embeddings and image keypoints.
negative (CONDITIONING): The adjusted negative conditioning output reflecting the controlled influences designed to suppress undesired features.
In ComfyUI workflows, the ApplyInstantIDControlNet node can be effectively utilized in the following ways:
Personalized Image Generation: By using facial embeddings, the node helps artists and designers create images that maintain specific personal features, which can be particularly beneficial in portrait generation or when aiming to retain character-specific attributes.
Pose & Feature Control: Combine this node with other InstantID nodes in a workflow to control both the pose via image keypoints and the stylistic traits through conditioning. This allows for highly customizable and directed image generations.
Controlled Stylization: Adjust the strength and timing (start_at, end_at) to finely control when and how much the ControlNet influences the image generation. This capability can be harnessed to achieve certain atmospheres or styles at different stages of image development.
Strength and Timing Control: The node provides additional control over the timing and intensity of ControlNet influences, which allows for nuanced adjustments in image generation.
Combining with Masks: Use masks to restrict where on the image the ControlNet's effects are applied, allowing for partial modifications and more complex compositions.
Integration with Other Nodes: The node can be effectively integrated into larger workflows involving InstantID and other ComfyUI-based models, offering a flexible approach to advanced image generation tasks.
Performance Optimization: It is important to ensure suitable configuration with other nodes such as ApplyInstantIDAdvanced for optimal performance and effect realization.
This node is an integral part of advanced workflows that leverage InstantID for personalized and controlled image generation tasks while integrating seamlessly with existing ComfyUI functionalities.