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I did this spiral using a blob and the macro that converts HSV to RGB.
My problem is that I can't get rid of the artifacts caused by the blob (and,
believe me, I've tried it a hundred different ways). The only possibility would
be to double or triple the amount of control cylinders, which will make this
already very slow image to be impossible to render.
I post it here so I can ask a question in General: is it possible to transform
this spiral into a parametric isosurface? If so, how can I get to the formula?
Thanks,
Ruy
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Attachments:
Download 'rainbow spiral.jpg' (124 KB)
Preview of image 'rainbow spiral.jpg'
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ruy wrote:
> I did this spiral using a blob and the macro that converts HSV to RGB.
>
> My problem is that I can't get rid of the artifacts caused by the blob (and,
> believe me, I've tried it a hundred different ways). The only possibility would
> be to double or triple the amount of control cylinders, which will make this
> already very slow image to be impossible to render.
>
> I post it here so I can ask a question in General: is it possible to transform
> this spiral into a parametric isosurface? If so, how can I get to the formula?
It would probably be easier to generate a mesh, specifically, one that
sweeps the tall thin rectangular cross-section around the spiral path.
Regards,
John
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Maybe this page can be of help. The second picture from above seems to be
remotely similar to what you would like...
http://www.econym.demon.co.uk/isotut/variable.htm
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"TC" <do-not-reply@i-do get-enough-spam-already-2498.com> wrote:
> Maybe this page can be of help. The second picture from above seems to be
> remotely similar to what you would like...
>
> http://www.econym.demon.co.uk/isotut/variable.htm
Thank you!
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