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I created a set of macros for specifying colours in HSL
(hue/saturation/lightness) mode, as I find HSL much more comfortable for
tweaking colours.
There is also a macro for tweaking the saturation and brightness of a colour
specified in RGB mode.
I'll post them to binaries.utilities, in case someone's interested.
Margus
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Margus Ramst wrote:
>
> I created a set of macros for specifying colours in HSL
> (hue/saturation/lightness) mode, as I find HSL much more comfortable for
> tweaking colours.
> There is also a macro for tweaking the saturation and brightness of a colour
> specified in RGB mode.
> I'll post them to binaries.utilities, in case someone's interested.
>
> Margus
Just curious but why do you feel more comfortable adjusting colors using
HSL as opposed to Pov's native rgb system ?
--
Ken Tyler
mailto://tylereng@pacbell.net
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Ken wrote:
>
> Just curious but why do you feel more comfortable adjusting colors using
> HSL as opposed to Pov's native rgb system ?
>
It is more intuitive. (Normal) people don't define colours in terms of RGB, but
rather in terms of the hue (greenish, blueish, warm, cold), how bright or dull
the colour is (i.e. saturation) and how dark or light it is.
Let's say you create a colour in RGB, but find it too saturated. Decreasing
saturation in RGB is difficult, without compromising the hue and/or lightness.
In HSL, I first find the hue that suits me (decreasing the H value if I want it
to be warmer, increasing for colder). Then I start tweaking S and L, while
retaining the original hue. Opinions may vary, of course, but I find this
approach easier.
Margus
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On Sat, 10 Jul 1999 15:01:21 +0300, Margus Ramst <mar### [at] peak eduee> wrote:
>Ken wrote:
>>
>> Just curious but why do you feel more comfortable adjusting colors using
>> HSL as opposed to Pov's native rgb system ?
>>
>
>It is more intuitive. (Normal) people don't define colours in terms of RGB, but
>rather in terms of the hue (greenish, blueish, warm, cold), how bright or dull
>the colour is (i.e. saturation) and how dark or light it is.
>Let's say you create a colour in RGB, but find it too saturated. Decreasing
>saturation in RGB is difficult, without compromising the hue and/or lightness.
>In HSL, I first find the hue that suits me (decreasing the H value if I want it
>to be warmer, increasing for colder). Then I start tweaking S and L, while
>retaining the original hue. Opinions may vary, of course, but I find this
>approach easier.
>
>Margus
The HSL scheme certainly seems more intuitive to me than RGB. In trying out
your macros I have created a sample scene with an array of tiles. The source is
posted in binaries.utilities and the image; HSLTest.jpg is in binaries.images.
Thanks for the macros.
David
------------
dav### [at] cwcomnet
http://www.hamiltonite.mcmail.com
------------
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