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Le 02/03/2014 15:30, LanuHum nous fit lire :
> I saw some artifacts. Probably, sometime you will correct it
>
Well, I now have corrected the rotation of the mapping to keep a
rotating base at each connection of segment.
But the V part remains computed from the normal of the surface,
projected on that segment's base. For other spline's types than linear,
I do not see a way to have a continuity of the V mapping. (even with
linear spline, the continuity is partial: the outer part of the sphere
is a stretch of a constant-U slice, and the inner part of the "shoulder"
has a jump of U.)
Contribution is of course welcome if you have an idea for the continuity
of V along U at the turn.
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Le_Forgeron <jgr### [at] free fr> wrote:
> Le 02/03/2014 15:30, LanuHum nous fit lire :
> Contribution is of course welcome if you have an idea for the continuity
> of V along U at the turn.
My idea - to draw a curve, using bicubic_patch with UV-mapping instead of
sphere_sweep
Today I tried to begin creation process. I am afraid to break the head about
arithmetics, connecting patches to smoothing
I don't know how it will affect weight of a scene and speed of a render
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Attachments:
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Preview of image 'bicubic_patch.png'
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Le 02/03/2014 15:30, LanuHum nous fit lire :
> Le_Forgeron <jgr### [at] freefr> wrote:
>
>> If you want a version far more close to 3.7 (at least the master
>> branch), you can also see:
>>
>> https://github.com/LeForgeron/povray
>>
>> Current delta from master of 3.7 is:
>> 1. Displaying more details about error on the command line for Unix
>> 2. uv_mapping support for sphere_sweep (with correction of FS#243 to
>> support negative scaling without getting negative radius for spheres)
>
> Today I could collect the program from this address.
> As image_map I used a simple grid with the alpha channel:
>
http://news.povray.org/povray.binaries.images/attachment/%3Cweb.53122820745dbc337a3e03fe0%40news.povray.org%3E/grid.png
>
> I saw some artifacts. Probably, sometime you will correct it
>
You are to be spoiled.
Despite my first impression of impossible, it's now done.
(instead of constant segments with twist at spheres, it's turning along
the segments). It cannot fix the internal shoulder of linear_spline (and
it will stay like that for the years to come), but it fix the other
splines' types .
Code now in repository.
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Attachments:
Download 'spl0.png' (298 KB)
Download 'spl1.png' (262 KB)
Download 'spl2.png' (192 KB)
Preview of image 'spl0.png'
Preview of image 'spl1.png'
Preview of image 'spl2.png'
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Le_Forgeron <jgr### [at] freefr> wrote:
> Code now in repository.
Excellent work! :)
Download this github.com/LeForgeron/povray ???
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Le 08/03/2014 17:35, LanuHum nous fit lire :
> Le_Forgeron <jgr### [at] freefr> wrote:
>
>> Code now in repository.
>
>
> Excellent work! :)
> Download this github.com/LeForgeron/povray ???
>
either :
git clone https://github.com/LeForgeron/povray.git
or
hg clone https://bitbucket.org/LeForgeron/hgpovray
(if you are more familiar with git or mercurial).
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Le 08/03/2014 17:35, LanuHum nous fit lire :
> Le_Forgeron <jgr### [at] freefr> wrote:
>
>> Code now in repository.
>
>
> Excellent work! :)
> Download this github.com/LeForgeron/povray ???
>
either :
git clone https://github.com/LeForgeron/povray.git
( limited evolution of 3.7 )
or (for even more experimental features)
git clone https://github.com/LeForgeron/Hgpovray.git
or
hg clone https://bitbucket.org/LeForgeron/hgpovray
(if you are more familiar with git or mercurial).
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Le_Forgeron <jgr### [at] freefr> wrote:
> or (for even more experimental features)
What it is experiments?
It is possible to examine them?
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Le 08/03/2014 18:35, LanuHum nous fit lire :
> Le_Forgeron <jgr### [at] freefr> wrote:
>
>> or (for even more experimental features)
>
> What it is experiments?
> It is possible to examine them?
most are listed in
http://wiki.povray.org/content/User:Le_Forgeron
(but I'm late on the update of the page. missing stereoscopic camera and
planet transformation of mesh, as well as the uv-mapping of sphere_sweep)
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Le_Forgeron <jgr### [at] freefr> wrote:
>
> most are listed in
>
> http://wiki.povray.org/content/User:Le_Forgeron
>
There is a lot of interesting!
Thanks a lot!
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On 8-3-2014 19:19, Le_Forgeron wrote:
> Le 08/03/2014 18:35, LanuHum nous fit lire :
>> Le_Forgeron <jgr### [at] freefr> wrote:
>>
>>> or (for even more experimental features)
>>
>> What it is experiments?
>> It is possible to examine them?
>
> most are listed in
>
> http://wiki.povray.org/content/User:Le_Forgeron
>
> (but I'm late on the update of the page. missing stereoscopic camera and
> planet transformation of mesh, as well as the uv-mapping of sphere_sweep)
>
Yum! Proximity patterns!
Thomas
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