ComfyUI Node: FromListGetMasks

FromListGetMasks:

The FromListGetMasks node is designed to retrieve a specific mask from a list of masks based on a given index. This node is particularly useful when working with multiple masks and you need to access a specific one for further processing or manipulation. It supports both positive and negative indexing, allowing you to access elements from the start or end of the list, respectively. This flexibility makes it a powerful tool for AI artists who need to manage and manipulate multiple masks efficiently within their workflows.

FromListGetMasks Input Parameters:

list

The list parameter expects a list of masks from which a specific mask will be retrieved. This input is mandatory and must be provided for the node to function. The list should contain valid mask data that you want to access.

index

The index parameter specifies the position of the mask in the list that you want to retrieve. It accepts integer values and supports both positive and negative indexing. Positive values start from 0 (the first element), while negative values start from -1 (the last element). The default value is 0, meaning the first mask in the list will be retrieved by default. The minimum value is -2147483648, and the maximum value is 2147483647.

FromListGetMasks Output Parameters:

MASK

The output parameter MASK returns the mask located at the specified index in the input list. This output can then be used for further processing or manipulation in your workflow. The retrieved mask is returned as a single element, making it easy to integrate with other nodes that require a mask input.

FromListGetMasks Usage Tips:

• Use negative indexing to easily access masks from the end of the list without needing to know the exact length of the list.
• Ensure that the index parameter is within the valid range of the list to avoid errors.
• Combine this node with other list manipulation nodes to create complex workflows that require dynamic access to multiple masks.

FromListGetMasks Common Errors and Solutions:

IndexError: list index out of range

• Explanation: This error occurs when the specified index is outside the valid range of the list.
• Solution: Ensure that the index parameter is within the bounds of the list. You can use the modulo operation to wrap around the index if needed.

TypeError: list is not iterable

• Explanation: This error occurs when the list parameter is not a valid list of masks.
• Solution: Verify that the input provided to the list parameter is a valid list containing mask data.

ValueError: invalid literal for int() with base 10

• Explanation: This error occurs when the index parameter is not a valid integer.
• Solution: Ensure that the index parameter is an integer value. If using a variable, make sure it is properly converted to an integer before passing it to the node.