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On 10/20/2016 3:07 PM, Bald Eagle wrote:
> One thing I also noticed was an anomaly in the coloration - take a look at "0
> degrees" on the unit circle in the first image, and "180 degrees" in the last -
> there's a "burp" in the coloring.
>
> Not sure if that's my code, or something to do with the HSV to RGB color macro,
> or something else.
>
>
>
I think you should use HSL instead of HSV. I don't find HSV very
intuitive. I read one person write HSV is good for photographers, but I
don't understand how, and I never use HSV personally if I can help it.
Mike
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Mike Horvath <mik### [at] gmail com> wrote:
> I read one person write HSV is good for photographers, but I
> don't understand how, and I never use HSV personally if I can help it.
That's an odd claim. I don't see how either HSV or HSL would be good for
photographers, as the L or V component corresponds to the inner workings of the
color system, and not to visual impression. Wikipedia goes into the downsides
of these systems.
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"Cousin Ricky" <rickysttATyahooDOTcom> wrote:
> Mike Horvath <mik### [at] gmailcom> wrote:
> > I read one person write HSV is good for photographers, but I
> > don't understand how, and I never use HSV personally if I can help it.
>
> That's an odd claim. I don't see how either HSV or HSL would be good for
> photographers, as the L or V component corresponds to the inner workings of the
> color system, and not to visual impression. Wikipedia goes into the downsides
> of these systems.
I worked out pretty much everything over the weekend - I think part of the issue
was trying to figure out how to make the subdivisions of the grid fit into the
number of frames - I made the frames equal the number of divisions of Phi times
the number of divisions of Theta - which is a lot, but the math is easy and it
gives even divisions.
Both a torus and a trianguloid trefoil worked out well and were fully
animatable.
Final frames posted here:
Post a reply to this message
Attachments:
Download 'parametric_animation5400.png' (111 KB)
Preview of image 'parametric_animation5400.png'
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Post a reply to this message
Attachments:
Download 'parametric_animation2_360.png' (122 KB)
Preview of image 'parametric_animation2_360.png'
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On 10/23/2016 12:40 AM, Cousin Ricky wrote:
> Mike Horvath <mik### [at] gmailcom> wrote:
>> I read one person write HSV is good for photographers, but I
>> don't understand how, and I never use HSV personally if I can help it.
>
> That's an odd claim. I don't see how either HSV or HSL would be good for
> photographers, as the L or V component corresponds to the inner workings of the
> color system, and not to visual impression. Wikipedia goes into the downsides
> of these systems.
>
>
Well, he obviously can't make use of CIELab in a macro.
Mike
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Mike Horvath <mik### [at] gmailcom> wrote:
> Well, he obviously can't make use of CIELab in a macro.
Yet.
;) :D
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Eagle wrote on 24/10/2016 16:15:
>
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Bald Eagle wrote on 24/10/2016 16:15:
>
It looks very nice!
Paolo
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On 10/23/2016 12:40 AM, Cousin Ricky wrote:
> Mike Horvath <mik### [at] gmailcom> wrote:
>> I read one person write HSV is good for photographers, but I
>> don't understand how, and I never use HSV personally if I can help it.
>
> That's an odd claim. I don't see how either HSV or HSL would be good for
> photographers, as the L or V component corresponds to the inner workings of the
> color system, and not to visual impression. Wikipedia goes into the downsides
> of these systems.
>
>
The claim had something to do with a red object staying red no matter
how bright a light you shine on it. I.e. the "value" of the red object
can only become more red, not white when lit. This is apparently more
important to photographers who work mostly with non-emissive objects and
whitish lights.
OTOH, HSL or L*c*h* or Munsell are more intuitive to artists who create
colors from scratch and need them to be lighter or darker.
I don't recall where this discussion took place, but here is a similar one:
http://stackoverflow.com/a/17350333/330663
Mike
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Mike Horvath <mik### [at] gmailcom> wrote:
> On 10/20/2016 3:07 PM, Bald Eagle wrote:
>> One thing I also noticed was an anomaly in the coloration - take a look at "0
>> degrees" on the unit circle in the first image, and "180 degrees" in the last -
>> there's a "burp" in the coloring.
>>
>> Not sure if that's my code, or something to do with the HSV to RGB color macro,
>> or something else.
>>
>>
>>
>
>
> I think you should use HSL instead of HSV. I don't find HSV very
> intuitive. I read one person write HSV is good for photographers, but I
> don't understand how, and I never use HSV personally if I can help it.
>
>
> Mike
>
I use HCY for coloring multiscale reaction-diffusion systems, as it is
quite amiable to getting good results from only a single array of floats.
Oan
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