ComfyUI Node: ↻ Linear Camera Roll

Linear Camera Roll [DVB]:

The Linear Camera Roll [DVB] node is designed to apply a smooth, linear rotational effect to a sequence of frames, creating a dynamic and engaging visual experience. This node is particularly useful for AI artists looking to add a consistent rotational motion to their video sequences, enhancing the visual appeal and adding a sense of movement. By specifying the degree of rotation, you can control the intensity of the roll effect, making it suitable for a variety of creative applications. The node ensures that the output frames are cropped to the desired dimensions, maintaining the focus on the central part of the image while applying the rotation.

Linear Camera Roll [DVB] Input Parameters:

frames

This parameter represents the sequence of frames to which the linear camera roll effect will be applied. It is essential as it provides the visual content that will be transformed by the node.

output_width

This integer parameter defines the width of the output frames after the rotation and cropping are applied. The default value is 512, with a minimum value of 1. Adjusting this parameter allows you to control the horizontal dimension of the final output, ensuring it fits your specific requirements.

output_height

This integer parameter specifies the height of the output frames post-rotation and cropping. Similar to output_width, the default value is 512, with a minimum value of 1. This parameter helps you manage the vertical dimension of the final output, ensuring consistency with your project's needs.

degrees

This float parameter determines the degree of rotation applied to each frame in the sequence. The default value is 45.0 degrees. By adjusting this parameter, you can control the intensity of the rotational effect, allowing for subtle or dramatic visual transformations.

Linear Camera Roll [DVB] Output Parameters:

frames

The output of this node is a sequence of frames that have been rotated and cropped according to the specified parameters. This transformed frame set retains the central focus of the original images while incorporating the specified rotational motion, resulting in a visually engaging output.

Linear Camera Roll [DVB] Usage Tips:

• Experiment with different degrees values to achieve the desired rotational effect, from subtle shifts to dramatic spins.
• Ensure that the output_width and output_height are set appropriately to maintain the aspect ratio and focus of your original frames.
• Use this node in combination with other camera motion nodes to create complex and dynamic visual sequences.

Linear Camera Roll [DVB] Common Errors and Solutions:

WARNING: Cannot pan - output larger than input!

• Explanation: This warning occurs when the specified output dimensions are larger than the input frame dimensions, making it impossible to crop the image correctly.
• Solution: Ensure that the output_width and output_height parameters are set to values smaller than or equal to the dimensions of the input frames.

WARNING: Cannot pan - no direction!

• Explanation: This warning is triggered when the direction parameters for panning are set to zero, resulting in no movement.
• Solution: Adjust the direction parameters to non-zero values to enable the panning effect.