Color Nodes

Color manipulation and conversion nodes for working with RGB, HSV, and other color spaces.

This category contains 6 nodes.

Nodes

Color Grayscale

Converts a color to grayscale, preserving white channels. Also outputs the overall lightness as a number.

Inputs: A color to convert.

Name	Type	Range	Default
Color	Color	color	[255, 255, 255, 255, 255, 255]

Outputs: Grayscale color and a lightness value (0 to 1).

Name	Type	Range
Color	Color	color
Lightness	Number	any

Combine Color

Builds a color from separate channel values. Use when you need individual control over each color channel.

Inputs: One value per Red, Green, Blue, White, Amber, and UV emitter, as that emitter's share of its full light output on a 0-255 scale, where 255 is the emitter at full and 128 is half its light. Spectralite works out the DMX level each fixture needs to put out that much light.

Name	Type	Range
Red	Number	0-255
Green	Number	0-255
Blue	Number	0-255
White	Number	0-255
Amber	Number	0-255
UV	Number	0-255

Outputs: The combined color.

Name	Type	Range
Color	Color	color

Cosine Palette

Builds a smooth looping color ramp from four control vectors, one component per RGB channel: Bias sets the average color, Amplitude the contrast, Frequency how many times each channel cycles, and Phase where each channel starts. Sweep T with time or position for a smooth gradient.

Inputs: T (the position along the ramp, usually 0-1) plus the bias, amplitude, frequency, and phase vectors.

Name	Type	Range	Default
T	Number	0-1	0
Bias	Vector	vec:0-1	[0.5, 0.5, 0.5]
Amplitude	Vector	vec:0-1	[0.5, 0.5, 0.5]
Frequency	Vector	vec	[1, 1, 1]
Phase	Vector	vec:0-1	[0, 0.33, 0.67]

Outputs: The sampled color, with each channel clamped to the 0-255 scale, where 255 is that emitter at full.

Name	Type	Range
Color	Color	color

HSL to RGB

Creates colors using Hue, Saturation, and Lightness. Easier for creating color cycles and rainbow effects.

Inputs: Hue (cycles through the rainbow every 1.0; any value works, it is wrapped into 0-1 internally so a rising time input keeps cycling), Saturation (0=gray, 1=vivid), Lightness (0=black, 0.5=full color, 1=white).

Name	Type	Range
Hue	Number	any (wraps every 1)
Saturation	Number	0-1
Lightness	Number	0-1

Outputs: Red, Green, and Blue, as each emitter's share of its full light output on a 0-255 scale, where 255 is the emitter at full.

Name	Type	Range
Red	Number	0-255
Green	Number	0-255
Blue	Number	0-255

RGBW to HSL

Extracts Hue, Saturation, and Lightness from a color. Useful for manipulating colors in HSL space.

Inputs: A color to analyze. 'Merge White' blends the white channel into RGB before conversion.

Name	Type	Range	Default
Color	Color	color	[0, 0, 0, 0, 0, 0]
Merge White	Boolean	bool	false

Outputs: Hue (0-1, rainbow position), Saturation (0-1, color intensity), Lightness (0-1, brightness).

Name	Type	Range
Hue	Number	0-1
Saturation	Number	0-1
Lightness	Number	0-1

Split Color

Separates a color into its individual channels. Use to manipulate or read specific color components.

Inputs: A color to split.

Name	Type	Range	Default
Color	Color	color	[0, 0, 0, 0, 0, 0]

Outputs: Separate Red, Green, Blue, White, Amber, and UV values, as each emitter's share of its full light output on a 0-255 scale, where 255 is the emitter at full.

Name	Type	Range
Red	Number	0-255
Green	Number	0-255
Blue	Number	0-255
White	Number	0-255
Amber	Number	0-255
UV	Number	0-255