Expression to control Channel Range (in Hue/Saturation)?

[Dan Ebberts]

Unfortunately, that property has a property value type of CUSTOM_VALUE, so you won’t be able to access it with an expression.

Dan

[Jeangjenq Loh]

Ah that explains it. I’ll fall back to using the rgbToHsl then,
Thanks Dan!

[Joe Clay]

You could also try this. Just set your output colors to vary in brightness only. I prefer this method over rgbToHsl if I can use it.

https://workbench.tv/tutorials/2016-06-17_ColorCycle/

Joe Clay
Workbench.tv

[Jeangjenq Loh]

Thanks for the suggestion! However I’m trying to control my final output color using a fill effect on a null object? And I can’t put use expression on Colorama output cycle either.

[Joe Clay]

So you’re trying to take that color from the fill and apply it to other layers? If that’s the case, unfortunately Colorama won’t output a color that you can apply to other layers.

On any color parameter, you can add this kind of expression.

hsla = rgbToHsl(value);
hsla[2] = .3; //change this value, link it to a slider or whatever
hslToRgb(hsla);

Joe Clay
Workbench.tv

[Jeangjenq Loh]

Thanks Joe! That works!

Thanks Joe! That works great!

[Joe Clay]

Awesome! You’re welcome!

Joe Clay
Workbench.tv

[Ze’ev Gilad]

This is great, thanks! But why can’t I do something like:

hsla = rgbToHsl(value);
newColor = hsla * [1, .5, .5, 1];
hslToRgb(newColor);

This gives me error “one argument must be scalar.”

[Dan Ebberts]

You’re telling it to multiply two arrays. Try it this way:

hsla = rgbToHsl(value);
newColor = [hsla[0],hsla[1]*.5,hsla[2]*.5,hsla[3]];
hslToRgb(newColor);