ComfyUI Node: 🔭 Sine Camera Zoom

Sine Camera Zoom [DVB]:

The Sine Camera Zoom [DVB] node is designed to create a smooth, oscillating zoom effect in your video frames, mimicking the natural motion of a sine wave. This node is particularly useful for adding dynamic and rhythmic zooming effects to your video projects, making them more engaging and visually appealing. By leveraging the mathematical properties of the sine function, this node ensures that the zooming motion is fluid and continuous, providing a professional touch to your animations. The primary goal of this node is to offer a simple yet powerful way to introduce periodic zooming effects, which can be customized in terms of speed and phase to match the desired artistic vision.

Sine Camera Zoom [DVB] Input Parameters:

frames

This parameter represents the set of video frames that the zoom effect will be applied to. It is essential as it provides the raw material for the node to process and generate the zooming effect.

output_width

This parameter specifies the width of the output frames after the zoom effect is applied. The default value is 512, with a minimum value of 1. Adjusting this parameter allows you to control the resolution of the output frames, ensuring they meet your project's requirements.

output_height

This parameter specifies the height of the output frames after the zoom effect is applied. Similar to output_width, the default value is 512, with a minimum value of 1. This parameter helps you maintain the aspect ratio and resolution of the output frames.

period_seconds

This parameter defines the duration of one complete cycle of the sine wave in seconds. The default value is 1.0, with a minimum value of 0.1 and adjustable in steps of 0.1. By modifying this parameter, you can control the speed of the zooming effect, making it faster or slower depending on your needs.

phase_seconds

This parameter sets the phase shift of the sine wave in seconds. The default value is 0.0. Adjusting this parameter allows you to offset the starting point of the zoom effect, providing more control over the timing and synchronization with other elements in your video.

Sine Camera Zoom [DVB] Output Parameters:

frames

This output parameter represents the set of video frames after the sine wave zoom effect has been applied. The frames will exhibit a smooth, oscillating zoom motion, enhancing the visual dynamics of your video project.

Sine Camera Zoom [DVB] Usage Tips:

• Experiment with different values for period_seconds to find the optimal speed for your zoom effect. A shorter period will result in a faster zoom, while a longer period will create a slower, more gradual zoom.
• Use the phase_seconds parameter to synchronize the zoom effect with other animations or audio elements in your project. This can help create a more cohesive and engaging final product.
• Ensure that the output_width and output_height parameters match the desired resolution of your final video to avoid any unwanted cropping or resizing issues.

Sine Camera Zoom [DVB] Common Errors and Solutions:

WARNING: Cannot pan - output larger than input!

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

WARNING: Cannot pan - no direction!

• Explanation: This error is related to panning and indicates that no direction has been specified for the pan motion.
• Solution: This error is not directly related to the Sine Camera Zoom node. Ensure that you are using the correct node and parameters for your intended effect.