Some more changes in rgb2hsl.

[Dickby]

Describe your PR, what does it fix/add?

1. also calculate marks and adds only if they are used.
2. use glsl vector functions to build the masks vector and avoid multiple branches.
3. change the adds initialization to divide the Vector by delta at once
4. add missing new line between functions

Is there anything you want to mention? (unchecked code, possible bugs, found problems, breaking compatibility, etc.)

Is it ready for merging, or does it need work?

I think it's ready.

[Eclextic]

What the f is the difference between equal and ==?
Doesn't the compiler transform them anyways?

Rest looks good!

[Dickby]

@Eclextic
equal works on vectors e.g
equal(vec3(1.0,2.0,3.0), vec3(2.0,2.0,2.0)) produces a bool vector (0 , 1 , 0)

[Eclextic]

ooooh! I didn't know that!
So we can get a bool for every element in the vector separately!
Thanks for that info, that's awesome!

[vaxerski]

coolio