» Colors
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Colors

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In programming colors are specified using a color model which specifies how a color is being represented by typically 4 color components. vvvv uses the RGB color model and has the following nodes allowing colors to be specified:
RGB (Color Join)
HSL (Color Join)
HSV (Color Join)

and split up into their components:
RGB (Color Split)
HSL (Color Split)
HSV (Color Split)

The HSL and HSV variants are just other ways of representing points (colors) in an RGB color model which are typically more intuitive to adjust. That's why the IOBox (Color) uses the HSV representation by default. HSV is also sometimes called HSB.

The individual components of color models are often specified from 0 to 255 for red, green, blue and alpha, for 0 to 360° for the hue of a color and for 0 to 100% for the saturation and lightness or value/brightness. Not so in vvvv:

The most important thing to know about colors in vvvv is that the value range of their individual components is always 0 to 1.

While this allows for very efficient handling of colors within vvvv you may find it not so intuitive to enter constant values for individual component taken e.g. from other software. Consider the need to enter a constant value of 207° as the hue of a color. In this case just type into the IOBox:

 207/360

which will be evaluated to

 0,575

String representations

When you need to save a colors value as a string to a file or interpret a color from a string try the following nodes:

Operators

- (Color)
+ (Color)
* (Color)

Linear Interpolation between colors:
Blend (Color) = InputMorph (Color)

Conversion

HSLtoHSV (Color)
HSVtoHSL (Color)

Palettes

RetroColors (Color)
Windows98Colors (Color)
NetscapeColors (Color)
Spectrum (Color)
How to Choose Colours Procedurally



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Shoutbox

~9h ago

joreg: @mediadog: indeed, fixed that!

~9h ago

mediadog: @microdee @joreg Aha! I had glanced at that list, but assignment was lurking beyond the scrollbar. Athankew!

~11h ago

joreg: first-come-first-serve tickets are now sold out except the "delegate" ones. others are still available from here: https://nodeforum.org/journal/node17-tickets/

~12h ago

~13h ago

microdee: @mediadog: default is set via assignment (equal sign)

~22h ago

mediadog: No default for effect parameters, just min and max?

~1d ago

microdee: regular *fcfs tickets for #node17 are already sold out, and non lowered regular ticket isn't available straight from main page

~2d ago

mediadog: @evvvvil Man if that was 10th I want to see 1-9. 4kb, insane!

~2d ago

evvvvil: @sinus, thankx a lot broh! LJ, guy from my group desire, won shader showdown :) couldn't enter as qualifiers were on Friday. Peace

~2d ago

sinus: @evvvvil: great!! nvscene shader live coding 666: https://www.youtube.com/watch?v=O-1zEo7DD8w