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Colors

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Specifying colors

RGB color model
HSL and HSV representation

Related nodes

Specifiyng Colors
RGB (Color Join)
RGB (Color Join Picker)
RGB (Color Join Vector)

HSV (Color Join)
HSV (Color Join Picker)
HSL (Color Join)

AsColor (String Hex)

Splitting into components
RGB (Color Split)
RGB (Color Split Vector)
HSL (Color Split)
HSV (Color Split)

Colors in vvvv are represented by 4 color components in a range 0..1:

  • R for Red
  • G for Green
  • B for Blue
  • A for Alpha (defines transparency)

There is also another way to represent a color in RGB space, which is typically more intuitive to adjust:

  • HSL (Hue, Saturation, Lightness)
  • HSV (Hue, Saturation, Value) aka HSB.

The IOBox (Color) uses the HSV representation by default, see Color IOBoxes.

Note, other software packages can specify individual components in another ranges:

  • RGB: 0..255 for the Color channels and 0..100% for the Alpha
  • HSL: 0..360° for the Hue and 0..100% for the Saturation and Lightness.

Don't forget to convert the values to the 0..1 range.
There are convenient RGB (Color Join Picker), HSV (Color Join Picker)and AsColor (String Hex) for helping. Or just type the expression like 270/360 into the IOBox to convert 207° of Hue into 0..1 range.

Saving / sending colors

Related nodes

AsString (Color Hex)
AsString (Color)
AsRaw (Color)
RGB (Color Split Vector)

AsColor (String Hex)
AsColor (String)
AsRaw (String)
RGB (Color Join Vector)

When you need to save / load a color to a file or send / receive it over the network it has to be represented as a String or Raw data.

Color Manipulation

Related nodes

- (Color)
+ (Color)
* (Color)
= (Color)
RGB (Transform)
HSL (Transform)
Blend (Color)
InputMorph (Color)

Colors in vvvv can be compared, transformed and interpolated.

See also:

Color Space conversion

Related nodes

HSLtoHSV (Color)
HSVtoHSL (Color)

These nodes are little helpers to convert between HSL and HSV spaces.

Palettes

How to Choose Colours Procedurally

Related nodes

RetroColors (Color)
Windows98Colors (Color)
NetscapeColors (Color)
Spectrum (Color)

See also:

Down the rabbit hole

Khan Academy - Pixar in a Box, Color science
Charles Poynton - Color technology
John Novak - What every coder should know about gamma
Bjango - Color management

External sites providing further info on color, color spaces and color management.



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Shoutbox

~7d ago

fleg: This Tuesday, Cologne: exhibition opening of "interwoven", textile disinformation patterns created with vvvv. https://fleg.de/news/exhibition-interwoven

~21d ago

manuelgonzalvez: Assimp nodes all broken afted Win Update w/exception "COM object that has been separated from its underlying RCW(...)"

~21d ago

manuelgonzalvez: @levi thanks would love to! anyway managed to get something similar working based on forum search and anthokio's patches.

~21d ago

levi: @ravasquez thanks. 31.2 x86 verrion worked. @manuelgonzalvez i have a dx11 projectTexture if u a want.

~23d ago

manuelgonzalvez: Anyone has a dx11 port of "projectedTexture" dx9 fx for projection mapping?

~23d ago

manuelgonzalvez: Anyone has a dx11 port of "projectedTexture" dx9 fx for projection mapping?

~23d ago

ravazquez: @levi not sure bout the ImagePack, but I believe VL.OpenCV should give you the same tools and should work with beta just fine

~23d ago

levi: anyone knows of a VVVVpacks.image that works for elliot's projector calibration patches?x64,dx11. always crashes v4 on solve.

~1mth ago

Lorenz: VJing with GIFS: https://lorenzpotthast.de/gifjockey/ A fun little side project, that I first prototyped in v4 and now turned web-based ;)

~2mth ago

schlonzo: finally fixed in 4.8 nice1