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Plasticity Is CAD for Artists

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Re: Plasticity Is CAD for Artists

#31

Post by nkallen »

jcelerier wrote: post #30
nkallen wrote: post #29

Earlier quoted context omitted.

I will say I’m constantly bewildered by which license to choose. I’m using copyleft to defend myself a bit. But weak copyleft because I’ve hate that the gpl prevents blender plug-ins from being closed source or linking against something closed source. Plasticity will allow plug-ins to do whatever they want, that’s the goal. There is some possibility I will switch to MIT since philosophically I’m more in that camp

> I’m using copyleft to defend myself a bit. But weak copyleft because I’ve hate that the gpl prevents blender plug-ins from being closed source or linking against something closed source So you're ok with using copyleft to defend yourself, but not ok with others to use copyleft to defend themselves ? This is bewildering

Yes that is correct. I am not ok with others.

Edit: Jesus do you really not recognize sarcasm? People are free to use whatever license they want and I’m free to explain why I choose lgpl over gpl

Re: Plasticity Is CAD for Artists

#32

Post by jcelerier »

nkallen wrote: post #31
jcelerier wrote: post #30

Earlier quoted context omitted.

> I’m using copyleft to defend myself a bit. But weak copyleft because I’ve hate that the gpl prevents blender plug-ins from being closed source or linking against something closed source So you're ok with using copyleft to defend yourself, but not ok with others to use copyleft to defend themselves ? This is bewildering

Yes that is correct. I am not ok with others. Edit: Jesus do you really not recognize sarcasm? People are free to use whatever license they want and I’m free to explain why I choose lgpl over gpl

surely you see how your position is not workable in any decent society ? this is literally one of the only common rule across humankind: https://en.wikipedia.org/wiki/Golden_Rule

Re: Plasticity Is CAD for Artists

#33

Post by dsign »

colordrops wrote: post #5

For those of us who are not familiar with the domain, what differentiates this from Blender? Does Blender not support NURBS? If not, why is that the case?

As others have said, Blender supports NURBS, but it is not too fancy.

I have played before with Moi3D[^1], which is "3D modeling for designers and artists", and I also use Blender and ZBrush quite a bit. My impression so far is that CAD-like specialized software is not worth using for artistic 3D modelling, at least the type which is only intended to be shown on a screen. That's because Blender's NURBS, curves and surfaces are good enough for simple shapes. For relatively complex shapes, the solvers in CAD engines can be very slow and glitchy[^2].

With a little bit of patience, one can do amazing non-destructive hard surfaces using curves and Blender's Geometry nodes (specially now that there is support for curves). With an entirely different workflow, ZBrush is a mighty hard-surface modeller as well[^3].

That's not to say that there aren't scenarios where one may have use for a solver, but they are so specialized that most artists would be better off doing the math outside their 3D modeller (or renting Fusion360 for a month, but for a casual user that software has to be more intimidating than using Python and Kiwisolver).

[^1]: http://moi3d.com

[^2]: http://moi3d.com/forum/index.php?webtag=MOI&msg=10620.1

[^3]: http://docs.pixologic.com/user-guide/3d-modeling/hard-surfac...

Re: Plasticity Is CAD for Artists

#35

Post by ushakov »

nkallen wrote: post #29
nkallen wrote: post #21

Earlier quoted context omitted.

A full build from scratch would require the c3d headers, which I can’t provide. What I am planning is to something like this: divide the app into two pieces, an npm wrapper around the kernel and the electron front end that uses the module. You will need a license key to “activate” the node module. You would then use the electron app or the module directly if you’re a programmer. You will be able to build your own for…

I will say I’m constantly bewildered by which license to choose. I’m using copyleft to defend myself a bit. But weak copyleft because I’ve hate that the gpl prevents blender plug-ins from being closed source or linking against something closed source. Plasticity will allow plug-ins to do whatever they want, that’s the goal. There is some possibility I will switch to MIT since philosophically I’m more in that camp

[edit: misunderstanding]

Re: Plasticity Is CAD for Artists

#36

Post by dagw »

blenderdt wrote: post #12
colordrops wrote: post #5

For those of us who are not familiar with the domain, what differentiates this from Blender? Does Blender not support NURBS? If not, why is that the case?

Blender does support NURBS but very basic and very limited to the point that it's not very useful. Basically there are 3 methods for creating 3D content: * Voxels (points in space) * Polygon (vertices, edges and faces) * Mathematically calculated (NURBS, CAD) Blender uses all three but focusses on polygon modeling (triangles). The real pro of NURBS mondeling is that you are working with surfaces that can easily be sh…

Rhino (with Grasshopper) is massively popular among architects as well.

Re: Plasticity Is CAD for Artists

#37

Post by nkallen »

ushakov wrote: post #35
nkallen wrote: post #29

Earlier quoted context omitted.

I will say I’m constantly bewildered by which license to choose. I’m using copyleft to defend myself a bit. But weak copyleft because I’ve hate that the gpl prevents blender plug-ins from being closed source or linking against something closed source. Plasticity will allow plug-ins to do whatever they want, that’s the goal. There is some possibility I will switch to MIT since philosophically I’m more in that camp

[edit: misunderstanding]

Please correct me if I’m wrong but I was not under that impression

https://stackoverflow.com/questions/5419923/can-gpl-be-re-li...

I thought I am the copyright owner and I can offer my code under as many licenses as I want. Many people dual license gpl code is my understanding. Converting my own code to mit should be allowed right?

Every Google result I’ve found says I’m the copyright owner and I can offer as many licenses as I want. Are you just trolling?

Re: Plasticity Is CAD for Artists

#38

Post by [deleted] »

fsloth wrote: post #15

A side note not intended as hostile or disparaging for any stakeholders: Plasticity seems to use c3d toolkit for it's solid operations. That may - or may not be - soon problematic as the company that produces is based in Russia ( https://c3dlabs.com/en/company/about/ ). Are other c3d users finding this problematic? There aren't that many solid kernels in the market.

[deleted]

Re: Plasticity Is CAD for Artists

#39

Post by ginko »

ushakov wrote: post #35
nkallen wrote: post #29

Earlier quoted context omitted.

I will say I’m constantly bewildered by which license to choose. I’m using copyleft to defend myself a bit. But weak copyleft because I’ve hate that the gpl prevents blender plug-ins from being closed source or linking against something closed source. Plasticity will allow plug-ins to do whatever they want, that’s the goal. There is some possibility I will switch to MIT since philosophically I’m more in that camp

[edit: misunderstanding]

>GPL means the code belongs to the public and you cannot copyright it

That's incorrect. The author still retains the copyright and is free to relicense their work any way they want.

Re: Plasticity Is CAD for Artists

#40

Post by mintplant »

nkallen wrote: post #37
ushakov wrote: post #35

Earlier quoted context omitted.

[edit: misunderstanding]

Please correct me if I’m wrong but I was not under that impression https://stackoverflow.com/questions/5419923/can-gpl-be-re-li... I thought I am the copyright owner and I can offer my code under as many licenses as I want. Many people dual license gpl code is my understanding. Converting my own code to mit should be allowed right? Every Google result I’ve found says I’m the copyright owner and I can offer as many li…

Correct, the commenter you're replying to appears to be completely misinformed.
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