ComfyUI Node: Load Motion Camera Preset

Load Motion Camera Preset:

The Load Motion Camera Preset node is designed to facilitate the loading of predefined camera motion presets for use in your AI art projects. This node allows you to select from a variety of camera motion options, which are then loaded from a JSON file containing the specific camera poses. By using this node, you can easily incorporate complex camera movements into your animations or visualizations without manually defining each pose. This can significantly enhance the dynamism and professional quality of your projects, making it easier to achieve sophisticated motion effects.

Load Motion Camera Preset Input Parameters:

motion_camera

This parameter specifies the camera motion preset you wish to load. The available options include a variety of predefined camera movements such as "U" (Up), "D" (Down), "L" (Left), "R" (Right), "O" (Outward), and several others with different speed variations and complex motions like "Round-RI" (Round Right Inward) and "SPIN-ACW-60" (Spin Anti-Clockwise 60 degrees). Selecting a specific motion preset will determine the camera's path and behavior during the animation. This parameter does not have a minimum or maximum value but must be one of the predefined options.

Load Motion Camera Preset Output Parameters:

POINTS

This output parameter returns a string containing the JSON data of the selected camera motion preset. The JSON data includes the specific camera poses that define the motion path. This output is crucial for integrating the camera motion into your project, as it provides the detailed instructions needed to animate the camera according to the selected preset.

Load Motion Camera Preset Usage Tips:

• To achieve smooth and professional camera movements, select a motion preset that best fits the scene and action you are trying to capture. For example, use "Round-RI" for circular motions around an object.
• Experiment with different motion presets to find the one that enhances the visual appeal of your project. Combining different presets can create unique and dynamic camera paths.

Load Motion Camera Preset Common Errors and Solutions:

FileNotFoundError: [Errno 2] No such file or directory: '.../test_camera_<motion_camera>.json'

• Explanation: This error occurs when the specified camera motion preset file cannot be found in the expected directory.
• Solution: Ensure that the motion camera preset file exists in the correct directory and that the file name matches the selected motion_camera option. Verify the file path and correct any discrepancies.

JSONDecodeError: Expecting value: line 1 column 1 (char 0)

• Explanation: This error indicates that the JSON file for the selected camera motion preset is empty or contains invalid JSON data.
• Solution: Check the content of the JSON file to ensure it contains valid JSON data. If the file is empty, regenerate or replace it with a valid preset file.

KeyError: '<motion_camera>'

• Explanation: This error occurs when the specified motion_camera option is not found in the predefined list of options.
• Solution: Verify that the motion_camera parameter is set to one of the predefined options listed in the MOTION_CAMERA_OPTIONS. Correct any typos or invalid entries.