ComfyUI Node: Nuke Ramp

Nuke Ramp:

The NukeRamp node is designed to generate various types of ramps and patterns, which are essential for creating gradients and testing visual effects in your projects. This node allows you to create smooth transitions between colors across an image, which can be used for background creation, texture generation, or as a base for more complex visual effects. By providing a range of ramp types such as horizontal, vertical, radial, diagonal, and checkerboard, the NukeRamp node offers flexibility and control over the visual output. This node is particularly beneficial for artists looking to add depth and dimension to their work through the use of color gradients, enabling them to achieve a wide array of visual styles and effects.

Nuke Ramp Input Parameters:

width

The width parameter defines the horizontal size of the generated ramp image. It determines how wide the image will be, allowing you to specify a value between 64 and 4096 pixels. The default value is set to 512 pixels. Adjusting the width can impact the aspect ratio and the overall appearance of the gradient, making it crucial for fitting the ramp into your desired composition.

height

The height parameter specifies the vertical size of the ramp image, with a range from 64 to 4096 pixels and a default value of 512 pixels. This parameter, in conjunction with the width, controls the dimensions of the output image. Modifying the height can affect the gradient's vertical stretch and is important for ensuring the ramp fits well within your project's layout.

ramp_type

The ramp_type parameter allows you to choose the style of the gradient you wish to create. Options include "horizontal," "vertical," "radial," "diagonal," and "checkerboard," with "horizontal" being the default. Each type offers a unique pattern, enabling you to select the one that best suits your artistic needs. For instance, a radial ramp creates a circular gradient, while a checkerboard pattern alternates colors in a grid-like fashion.

color_start

The color_start parameter sets the starting color of the gradient using RGB values ranging from 0 to 1. The default value is "0,0,0," which corresponds to black. This parameter is crucial for defining the initial color point of the ramp, influencing the overall color transition and the mood of the image.

color_end

The color_end parameter determines the ending color of the gradient, also using RGB values between 0 and 1. The default is "1,1,1," representing white. This parameter works in tandem with color_start to create a smooth transition between two colors, allowing you to achieve the desired gradient effect.

invert

The invert parameter is a boolean option that, when set to true, reverses the gradient's color direction. The default value is false. This feature is useful for quickly flipping the color transition without manually adjusting the start and end colors, providing an easy way to experiment with different visual outcomes.

batch_size

The batch_size parameter specifies the number of ramp images to generate in one go, with a range from 1 to 64 and a default of 1. This is particularly useful for batch processing, allowing you to create multiple variations of a ramp with a single operation, which can save time and streamline your workflow.

Nuke Ramp Output Parameters:

IMAGE

The IMAGE output parameter represents the generated ramp image based on the specified input parameters. This output is crucial for visualizing the gradient or pattern you have configured, serving as a foundational element for further artistic manipulation or as a standalone visual component in your project.

Nuke Ramp Usage Tips:

• Experiment with different ramp_type settings to discover unique visual effects that can enhance your project. Each type offers distinct patterns that can be used creatively in various contexts.
• Utilize the invert parameter to quickly test alternative color transitions, which can help you decide on the most visually appealing gradient for your composition.

Nuke Ramp Common Errors and Solutions:

ValueError: Colors must have 3 values (R,G,B)

• Explanation: This error occurs when the color_start or color_end parameters do not contain exactly three comma-separated values representing the RGB components.
• Solution: Ensure that both color_start and color_end are formatted correctly with three values each, such as "0.5,0.5,0.5" for a gray color.

Invalid ramp_type selection

• Explanation: This error arises when an unsupported value is provided for the ramp_type parameter.
• Solution: Verify that the ramp_type is set to one of the supported options: "horizontal," "vertical," "radial," "diagonal," or "checkerboard."