[Bf-committers] Circular array modifier

Alberto Velázquez alberto3d.1984 at gmail.com
Mon May 7 16:11:18 CEST 2018 

This modifier is obiusly different to spin, spin only extrude a mesh, this
modifier create and array in a determinate shape. Actually I'm doing a work
where this modifier will help me a lot to reduce times and make less
destructive the workflow.

2018-05-07 15:27 GMT+02:00 metalliandy <metalliandy666 at googlemail.com>:

> I've been waiting for ages for a modifier like this. It will be much more
> efficient, and significantly simpler than manually rotating objects with an
> empty or using the spin tool. It should also be noted that the spin tool is
> destructive too, so it cannot be considered as a direct replacement.
>
> Christian, Great work with this. May I suggest you rename the modifier to
> Radial Array rather than Circular Array though? Radial is a much more
> accurate description. :)
>
> Ronan, I'm fine with the idea of adding nodes for people who want to do
> procedural modelling in addition to modifiers, but it's pretty crazy to
> consider dropping the modifier stack all together. It would be much slower
> for regular modelling and take much more screen real-estate, so I hope it
> doesn't come to that.
>
> Cheers,
>
> -Andy
>
> On 07/05/2018 07:56, Ronan Ducluzeau wrote:
>
>> To model this kind of shape, we can obtain a clean result simply by using
>> a
>> beveled curve that is an helix.
>> We can also use dupliframes to obtain duplicates of a mesh following such
>> a
>> curve.
>>
>> So, the purpose of such a modifier is narrowed to animation.
>> And with an addon like animation nodes, you should be able to convert a
>> beveled curve to a mesh that could handle boolean operation to keep only
>> some portions of the shape.
>>
>> So, the process to do that in 2.79 is not obvious but it exists.
>>
>> For future of modifiers, there is the idea to abandon modifiers's stack to
>> a nodetree.
>> Each modifier should be converted as a simple node. And to offer a
>> complete
>> solution of procedural modeling, tools in edit mode should follow same
>> process and becomes a modifier node.
>> So, in a context where a Spin Duplicate is a tool in edit mode usable as a
>> modifier node. Your circular array modifier would be redundant.
>>
>> Modifiers nodes proposal was announced as postponed.
>> I don't know in what measure new modifiers would accepted.
>> But there were other modifiers proposals made.
>> And some like Remove Doubles or Bisect modifiers seems more useful for
>> people that would neglect a nodes workflow.
>>
>> Maybe, there could be a clarification about work on new modifiers for 2.8
>> to avoïd a waste of time and efforts.
>>
>> 2018-05-06 15:45 GMT+02:00 Christian Hubert <christian.hubert at dstribe.com
>> >:
>>
>> Hello again Thomas,
>>>
>>> The diff is here: https://developer.blender.org/D3206
>>> Your feedback is welcome.
>>>
>>>
>>> Cheers,
>>>
>>> Christian
>>>
>>> -----Message d'origine-----
>>> De : Bf-committers <bf-committers-bounces at blender.org> De la part de
>>> Christian Hubert
>>> Envoyé : dimanche 6 mai 2018 14:45
>>> À : 'bf-blender developers' <bf-committers at blender.org>
>>> Objet : Re: [Bf-committers] Circular array modifier
>>>
>>> Hi Thomas,
>>>
>>>
>>> About the diff, I'll do it asap and set you as a subscriber (probably I
>>> can do it during this afternoon or maybe, but there are family things
>>> before that today ^^).
>>>
>>> But concerning your blend file, simply edit the cube and subdivide it a
>>> bit (W + subdivide or add a subsurf with simple option) and have a look
>>> at
>>> the result. Also you needed to tune the empty to 15.1 degrees and to
>>> adjust
>>> the merge distance.
>>> This has an impact on the resulting mesh (set it displayed into wire/draw
>>> all edges for a better look) and the overall shape is not smooth (in
>>> sense
>>> of regular).
>>>
>>>
>>> Have a great Sunday too!
>>> Christian
>>>
>>> -----Message d'origine-----
>>> De : Bf-committers <bf-committers-bounces at blender.org> De la part de
>>> Thomas Beck Envoyé : dimanche 6 mai 2018 13:45 À : bf-blender developers
>>> <
>>> bf-committers at blender.org> Objet : Re: [Bf-committers] Circular array
>>> modifier
>>>
>>> Hi Chris
>>>
>>> definitely send in a diff developer.blender.org, this way we could
>>> continue our discussion there and won't clutter the mailing list.
>>>
>>> Look at this file: http://pasteall.org/blend/index.php?id=49459 - it's
>>> not constructed around a central point but does imho the same thing -
>>> currently I would rather see your modifier as an option integrated into
>>> the
>>> current one than having a new one added to Blender... but I can of course
>>> miss smth here.
>>>
>>> Cheers and have a great Sunday,
>>> Thomas
>>>
>>> Plasmasolutions
>>> Design | Development | Training
>>>
>>> Website: Http://www.plasmasolutions.de <http://www.plasmasolutions.de/>
>>> Blog: Http://blog.plasmasolutions.de <http://blog.plasmasolutions.de/>
>>>
>>> Telefon: +49 176 2017 9565
>>>
>>> Blender Foundation Certified Trainer
>>> <http://www.blendernetwork.org/BFCT>Autor von "Blender 2.7 - das
>>> umfassende Handbuch" <http://www.galileo-press.de/3404>
>>>
>>>
>>> Am So., 6. Mai 2018 um 12:31 Uhr schrieb Christian Hubert <
>>> christian.hubert at dstribe.com>:
>>>
>>> Hi Thomas,
>>>>
>>>>
>>>> Thanks a lot for this feedback, and no worries, there is no offense at
>>>>
>>> all.
>>>
>>>> About the screw modifier, afaik, no. Because the screw modifier
>>>> extrudes the mesh and this one duplicates it.
>>>>
>>>> Concerning the array, yes you can do things, but partially (again,
>>>> afaik), because the base mesh is not really placed around (and adapted
>>>> to) a central pivot. Maybe a combination of array + simpledeform could
>>>> make things similar, but it is not easy to tune the positions of the
>>>> object and its axis and to master master the central position is. And
>>>> even with that, adding a screw make it more complex.
>>>>
>>>> But that could be because of my lack of knowledge about these modifiers.
>>>> If you've time, feel free to provide some examples.
>>>>
>>>> Thanks again,
>>>>
>>>> Kind regards,
>>>> Christian
>>>>
>>>>
>>>> -----Message d'origine-----
>>>> De : Thomas Beck <software at plasmasolutions.de> Envoyé : dimanche 6 mai
>>>> 2018 11:18 À : bf-blender developers <bf-committers at blender.org> Objet
>>>> : Re: [Bf-committers] Circular array modifier
>>>>
>>>> Hi Christian,
>>>>
>>>> I just watched your video and I'm wondering if that is not already
>>>> possible with an ordinary screw modifier? And even the current array
>>>> modifier (in combination with a rotated and shifted empty along an
>>>> axis) is capable of duplicating a mesh along this exact exis. No
>>>> offense and thanks for your effort - it's more about understanding why
>>>>
>>> we need this modifier...
>>>
>>>> Cheers,
>>>> Thomas
>>>>
>>>> Plasmasolutions
>>>> Design | Development | Training
>>>>
>>>> Website: Http://www.plasmasolutions.de
>>>> <http://www.plasmasolutions.de/>
>>>> Blog: Http://blog.plasmasolutions.de <http://blog.plasmasolutions.de/>
>>>>
>>>> Blender Foundation Certified Trainer
>>>> <http://www.blendernetwork.org/BFCT>Autor von "Blender 2.7 - das
>>>> umfassende Handbuch" <http://www.galileo-press.de/3404>
>>>>
>>>>
>>>> Am So., 6. Mai 2018 um 10:20 Uhr schrieb Christian Hubert <
>>>> christian.hubert at dstribe.com>:
>>>>
>>>> Hi,
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Previously named < fan modifier >, the < circular array modifier >
>>>>> is now ported to 2.8. I can send a diff when you give me the < go >.
>>>>>
>>>>>
>>>>>
>>>>> Here is a demo video https://www.youtube.com/watch?v=vzKFHubAFzQ
>>>>> <https://www.youtube.com/watch?v=vzKFHubAFzQ&feature=youtu.be>
>>>>> &feature=youtu.be
>>>>>
>>>>>
>>>>>
>>>>> The parameters:
>>>>>
>>>>>
>>>>>
>>>>> *       Modes : simple, homothetic, rounded
>>>>>
>>>>>
>>>>>
>>>>> *       Simple mode: the modifier creates simple duplis of the mesh
>>>>>
>>>> rotated
>>>>
>>>>> around the axis
>>>>>
>>>>> *       Angle of rotation: the mesh is duplicated < slices > time
>>>>>
>>>> inside
>>>
>>>> this angle
>>>>> *       Slices: amount of times the duplication occurs
>>>>> *       Iterations: amount of times the angle is repeted
>>>>> *       Height: wanted height, with 3 modes.
>>>>>
>>>>> *       Slice: the height is the height between two consecutive slices
>>>>> *       Iteration: the height is given for an iteration
>>>>> *       Total: the height is total height of the result
>>>>>
>>>>> *       Axis: 3 possibilities. Around X and facing Y. Around Y and
>>>>>
>>>> facing
>>>
>>>> Z.
>>>>> Around Z and facing X. See comments about that below
>>>>> *       Pivot axis: another object can be used as pivot (instead of the
>>>>> object origin and local axis)
>>>>>
>>>>>
>>>>>
>>>>> *       Homothetic: the duplis are stretched transversally so that they
>>>>>
>>>> can
>>>>
>>>>> be joined. Below the parameters which are different from simple mode
>>>>>
>>>>> *       Magin angle: an angle between slices
>>>>> *       Shear: connect mesh borders along the height
>>>>> *       Merge: merge border vertices (from a slice to the next one and
>>>>>
>>>> from
>>>>
>>>>> first/last slice)
>>>>>
>>>>>
>>>>>
>>>>> *       Rounded: same as homothetic, but the vertices are shifted
>>>>> longitudinally to make the shape round. The parameters are the same
>>>>> as for < homothetic >
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Comment about axis: the calculation considers a < facing axis >, so
>>>>> that (for homothetic and rounded modes), the connection between
>>>>> slices is done when the mesh is symmetrical along this facing axis.
>>>>>
>>>>> Another calculation could avoid that, by projecting the mesh along
>>>>> the rotation axis whatever its position is around it. But using a
>>>>> facing axis allows to obtains asymmetrical effects (visible in the
>>>>> video), at the cost of user effort to place the mesh (or axis object)
>>>>>
>>>> correctly.
>>>
>>>>
>>>>>
>>>>> Thanks for your feed back.
>>>>>
>>>>>
>>>>>
>>>>> Christian
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Bf-committers mailing list
>>>>> Bf-committers at blender.org
>>>>> https://lists.blender.org/mailman/listinfo/bf-committers
>>>>>
>>>>>
>>>>>
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