ComfyUI Node: Sum Over Parameter Group

Sum Over Parameter Group:

The KfPGroupSum node is designed to aggregate multiple keyframed curves within a parameter group by summing them together. This node is particularly useful when you need to combine the effects of several curves into a single, unified curve. By summing the curves, you can create complex animations or parameter transitions that are influenced by multiple sources. This node simplifies the process of combining curves, making it easier to manage and manipulate multiple keyframed parameters in your projects.

Sum Over Parameter Group Input Parameters:

parameter_group

The parameter_group input is a collection of keyframed curves that you want to sum together. This parameter is mandatory and must be provided for the node to function. The parameter_group allows you to input a set of curves that will be processed and combined into a single curve. This input is crucial for defining the curves that will be aggregated, and it ensures that the node has the necessary data to perform the summation.

Sum Over Parameter Group Output Parameters:

KEYFRAMED_CURVE

The output of the KfPGroupSum node is a single KEYFRAMED_CURVE that represents the sum of all the curves within the provided parameter group. This output curve encapsulates the combined effect of all the input curves, providing a unified representation that can be used in further processing or animation tasks. The resulting curve is useful for creating complex animations or transitions that are influenced by multiple keyframed parameters.

Sum Over Parameter Group Usage Tips:

• Ensure that all the curves within the parameter_group are properly labeled and organized to avoid confusion when summing them.
• Use this node to combine multiple animation curves into a single curve for more streamlined and manageable animations.
• Experiment with different combinations of curves to achieve unique and complex effects in your animations.

Sum Over Parameter Group Common Errors and Solutions:

KeyError: 'parameter_group'

• Explanation: This error occurs when the parameter_group input is not provided or is incorrectly specified.
• Solution: Ensure that you provide a valid parameter_group input and that it contains the necessary keyframed curves.

TypeError: unsupported operand type(s) for +: 'Curve' and 'Curve'

• Explanation: This error may occur if the curves within the parameter_group are not compatible for summation.
• Solution: Verify that all curves within the parameter_group are of the correct type and can be summed together. Ensure that they are instances of the Curve class.

AttributeError: 'NoneType' object has no attribute 'parameters'

• Explanation: This error occurs if the parameter_group input is None or does not have the expected structure.
• Solution: Check that the parameter_group input is correctly initialized and contains the necessary parameters. Ensure that it is not None and has the parameters attribute.