ComfyUI Node: Vec4ScalarOperation

Vec4ScalarOperation:

The CM_Vec4ScalarOperation node is designed to perform mathematical operations between a 4-dimensional vector (Vec4) and a scalar value (float). This node is particularly useful for AI artists who need to manipulate vector data in their creative workflows, such as scaling or normalizing vectors. By applying a scalar operation to a Vec4, you can achieve transformations that are essential for various graphical and computational tasks, enhancing the flexibility and control over your vector data.

Vec4ScalarOperation Input Parameters:

op

The op parameter specifies the type of scalar operation to be performed on the Vec4. It accepts a list of predefined operations, such as "Mul" for multiplication and "Div" for division. This parameter determines how the scalar value will interact with the vector, allowing you to scale or adjust the vector's components accordingly. The available options are "Mul" and "Div".

a

The a parameter represents the input Vec4, which is a 4-dimensional vector. This vector is the primary data that will be manipulated by the scalar operation. Each component of the vector (x, y, z, w) will be affected by the chosen operation and the scalar value provided in the b parameter. The default value is a Vec4 with components (0.0, 0.0, 0.0, 0.0).

b

The b parameter is the scalar value (float) that will be used in the operation with the Vec4. This value will either multiply or divide each component of the vector, depending on the operation specified in the op parameter. The scalar value allows for precise control over the transformation applied to the vector. There is no predefined range, but typical values are positive or negative floats.

Vec4ScalarOperation Output Parameters:

VEC4

The output parameter VEC4 is the resulting 4-dimensional vector after the scalar operation has been applied. This vector reflects the transformation specified by the op parameter and the scalar value b. Each component of the original vector a is modified according to the chosen operation, providing a new Vec4 that can be used in subsequent nodes or processes.

Vec4ScalarOperation Usage Tips:

• To uniformly scale a Vec4, use the "Mul" operation with a scalar value greater than 1 to enlarge the vector or between 0 and 1 to shrink it.
• For normalizing a Vec4, you can use the "Div" operation with the vector's magnitude as the scalar value, ensuring the resulting vector has a magnitude of 1.

Vec4ScalarOperation Common Errors and Solutions:

Invalid operation type

• Explanation: The op parameter received a value that is not in the list of supported operations.
• Solution: Ensure that the op parameter is set to either "Mul" or "Div".

Division by zero

• Explanation: The b parameter is set to 0 while using the "Div" operation, leading to a division by zero error.
• Solution: Avoid setting the scalar value b to 0 when performing a division operation. Use a non-zero float value.

Incorrect vector format

• Explanation: The a parameter does not conform to the expected Vec4 format.
• Solution: Ensure that the input vector a is a 4-dimensional vector with valid float components.