ComfyUI Node: Save MotionBrush

Save MotionBrush:

The Save MotionBrush node is designed to facilitate the saving of motion brush data, which is a collection of optical flow information, into a structured directory. This node is particularly useful for AI artists working with motion data, as it allows for the organized storage and easy retrieval of motion brush sequences. By saving the motion brush data, you can later visualize or further process the motion information. The node ensures that each frame of the motion brush is saved both as a flow file and as a visual representation, making it easier to inspect and utilize the data in various creative projects.

Save MotionBrush Input Parameters:

motion_brush

The motion_brush parameter expects a MotionBrush object, which contains the optical flow data that you want to save. This data represents the motion between frames in a sequence and is essential for creating dynamic visual effects. The motion brush data is processed and saved frame by frame, ensuring that each frame's motion information is preserved.

save_category

The save_category parameter is a string that specifies the category under which the motion brush data will be saved. This allows you to organize your saved data into different categories, making it easier to manage and retrieve later. The default value is "smoke", but you can change it to any category name that suits your project.

save_name

The save_name parameter is a string that defines the name under which the motion brush data will be saved. This name is used to create a directory where all the related files will be stored. The default value is "smoke1", but you can customize it to any name that helps you identify the specific motion brush data.

Save MotionBrush Output Parameters:

None

This node does not produce any direct output parameters. Its primary function is to save the motion brush data to the specified directory, making it available for future use.

Save MotionBrush Usage Tips:

• Ensure that the motion_brush parameter contains valid optical flow data to avoid errors during the saving process.
• Use descriptive names for save_category and save_name to make it easier to locate and identify your saved motion brush data later.
• Verify that the specified directory has write permissions to prevent any issues during the saving process.

Save MotionBrush Common Errors and Solutions:

Directory creation failed

• Explanation: This error occurs if the node is unable to create the specified directory for saving the motion brush data.
• Solution: Check the directory path and ensure that you have the necessary write permissions. Verify that the parent directories exist and are accessible.

Invalid motion brush data

• Explanation: This error occurs if the motion_brush parameter does not contain valid optical flow data.
• Solution: Ensure that the motion_brush parameter is correctly populated with valid data before running the node. Check the source of the motion brush data for any issues.

File saving error

• Explanation: This error occurs if there is an issue while saving the flow or image files to the specified directory.
• Solution: Verify that the directory path is correct and that there is enough disk space. Ensure that the file names do not contain any invalid characters.