Full Version: V4 Wish List

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Having been trying to create a pipeline to hang out in Ipad Pro as long as I can before moving to desktop, and I can say Shapr3D is not as intuitive as MOI3D. I am really not a fan... and in many ways feel there are better programs. It's pretty... Just not as intuitive as your program. I am an Art Director for a pretty big studio... and have a need for a better solution than Shapr3D for fast first level massing. High level architects and engineers can get along with this program (it does the job) - they also have the cash to pay this level of subscription forever. Based on the cost - marketing is definitely trying to connect to a certain level high buyer. Actually Forger App is better for creative output... Damn. It's just that this program is so good that it could take over. I would pay you their subscription over paying them for their program (lol). I realize your just but one and we thank you... Also this program is much bigger than that moment and we all use it to carry our careers forward. I just wish there was an opportunity to have as good of a program as you have built on the Ipad Pro since it's where much is moving... Thanks!

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Hi Brandt, I'm glad you like MoI but I'm sorry I'm pushed to the limit as it is supporting both Windows and macOS. It just isn't feasible for me to target another platform.

- Michael

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need a FFD 2x2x2 or 3x3x3 ... like in 3dsmax

une boite FFD comme dans Max pour tordre des pièces organiques avec un meilleur contrôle que Flow command

histoire de bien faire la nique à Zbrush ;)

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Hi to all, this topic is long and I apologize but I have not read everything, so I hope not to repeat that, Moi3d 4 now has the ability to import subdivision surfaces as nurbs surfaces, but it would also be nice to have the possibility to choose the type of topology generated, why do I ask this? Because when I use of Subdiv_beta9 I get a grid of edges that I can copy and then generate a new surface with curves reconstructed with Moi3D.

Like this image below

Image Attachments:
Sub-div_edges.png 

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Hi pafurijaz, there is a choice of topology under Options > "SubD import options" > "Patch type". But the current settings there are focused on how extraordinary vertices are handled (vertices with other than 4 edges coming out from them).

It is also additionally possible to control topology by materials though, if you have Options > "SubD import options" > "Use materials" turned on then polygons that belong to different materials in the .obj file will not get merged together into a larger patch.

Or for another possibility you can use Construct > Curve > Iso to extract isocurves out from the large surface.

- Michael

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Thanks I had forgotten the isocurves, excellent and effective solution for my problem, thanks, however the color options may have another option to consider separate surfaces, it could be useful to have sharp edges and separate surfaces between them, such as when you split the surfaces like in this case below. The green one has separated surfaces the other one only different colors but but the same edges, on the left the source file imported inside without touch.



Then could you also consider the possibility of inserting a support for BRep and glTF, import and export?

Image Attachments:
sub_surf_comp.png 

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Hi pafurijaz,

re:
> <...> however the color options may have another option to consider separate surfaces, it could be useful
> to have sharp edges and separate surfaces between them, such as when you split the surfaces like in this
> case below. The green one has separated surfaces the other one only different colors but but the same
> edges, on the left the source file imported inside without touch.

To get sharp edges you would want to isolate the polygon vertices along those areas rather than have the polys share vertices.

That should be the same as what you would do to set up the .obj file to get sharp edges when importing into a poly modeling program and applying sub-d smoothing to it.


> Then could you also consider the possibility of inserting a support for BRep and glTF, import and export?

I'm not familiar with either of these formats. What programs support them?

This is the first time I can remember having a request for supporting these file formats. Supporting different file formats tends to take a lot of work and testing so I'm sorry it's not likely to happen soon.

- Michael

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Thanks, for the answers and I understand that you already have too much to do, maybe with the next releases, however BREP geometries are a hybrid way that supports both NURBS and Mesh geometries, and when I create a BRep file from a mesh file with CAD Assistant I can open it with FreeCAD and recognizes surfaces as if it were a nubrs geometry but nothing can be done besides this.

The image show the mesh file into FreeCAD as an regular geometry with nice smoothed edge without the classic grid such as when import the same as a mesh below


normal import


About B-Rep https://www.opencascade.com/doc/occt-7.4.0/overview/html/occt_user_guides__brep_wp.html

And for info about glTF here https://www.khronos.org/gltf/

Thanks and greetings.

Paolo ;)

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Hi Paolo, doesn't FreeCAD support opening STEP (.stp/.step) format files? You should be able to transfer NURBS surfaces between MoI and FreeCAD using STEP format.

Could you clarify what advantage there would be to using .brep format for the transfer instead of STEP format?


re:
> And for info about glTF here https://www.khronos.org/gltf/

It appears to only support polygon mesh geometry? It looks like there are various converters available to convert from OBJ to glTF format, like here's one example:
https://github.com/CesiumGS/obj2gltf


Sorry currently I wouldn't expect to support either of these from MoI directly. The amount of work to the amount of benefit ratio is not good since you can just use other already existing methods for Freecad transfer, and other already existing converters for glTF.

- Michael

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Thanks for you time, and the main idea come in mind because the Brep handle both geometry Nurbs and mesh, and the whole idea is was take the boundary info from that to do the conversion taking into account the boundary of surfaces, I know you have other priority before that, and I hope more surprise before final release, no mind anyway, I made several test with Moi3d and it has what I deserve, is a very nice application.

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Hi Paolo,

re:
> and the main idea come in mind because the Brep handle both geometry Nurbs and
> mesh, and the whole idea is was take the boundary info from that to do the conversion
> taking into account the boundary of surfaces

Sorry, I'm not understanding this part. Do you mean something like the .Brep file would contain both a mesh version and a NURBS version of the same object?

And that would be something you would create in FreeCAD and then send into MoI for conversion?

But would the mesh be a sub-d control cage mesh or just a rendering mesh made up of triangles only?

If it's a triangle render mesh and there is no sub-d control cage mesh then how would the sub-d converter find a sub-d control cage for the conversion?

And if there is a NURBS version of the object already in the file then why not just transfer the NURBS version over itself, why would there be any polygon to NURBS conversion needed?

- Michael

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Mine are more purposeful and hopeful, but I don't know the implicit issues and if it's possible. However the B-Rep file can contain Mesh and Nurbs geometries and not both of the same, however I create the files with CAD Assistant but they are still Mesh.

Thanks very much for answering

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Hi Paolo, but what is the goal with using the .brep format file - are you trying to get a better transfer from MoI into FreeCAD?

Are you starting out with a polygon model and you want to convert it into a NURBS model?

- Michael

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Yeah the main goal is converting mesh geometry into NURBS, but I found new ways with Moi3D, but the mesh modelling was made having in mind the Moi behaviors on conversion but is also a good way to work with subdivision surfaces, Now I work modeling the base mesh in Blender and the then I rebuild when was is necessary the surfaces into Moi3D, and I get a very clean surfaces. And now Blender open the most file made with Rhino or MoI with an experimental build and manage Nurbs

Below an hull created in Blender then converted to NURBS with Moi and imported as NURBS inside Blender, with that workflow I can have awesome nurbs inside Blender no more mesh..

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Hello pafurijaz -
This Blender (polygons) to Moi (nurbs from subdivisions) and back to Blender (imported nurbs) path is very interesting.
What is the exact link or release number of the Blender build you used ? And, would you mind sharing an example .blend of a part ?

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Hi, here are some links, for the files I have to search and prepare, That is the workflow is simple,I import the 3dm files (does not support trimmed surfaces for now) with the soc2014 version but viewing is a bit problematic, then save the file and open with a standard version of Blender, then edit the various surfaces because they are poorly displayed, I do nothing special but select the end point 'U' and 'V' several times. then the file is displayed correctly and is a NURBS surface.

NURBS soc-2014-nurbs branch update to Blender2.8(windows)
https://blender.community/c/graphicall/vkbbbc/

https://blenderartists.org/t/branch-soc-2014-nurbs-update-to-master

here an old post about this news
http://moi3d.com/forum/index.php?webtag=MOI&msg=9686.3

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Hey, thanks ! Will give it a spin asap.
[edit] Alright, tried it out, I see - it's pretty interesting indeed, just not quite ready yet but I can see the potential eventually. Will definitely keep an eye on it.

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Hello everyone,

I know this has been discussed before (a lot actually), but I'd like to again suggest some sort of "polygon mesh reference" display similar to image references. No user interaction with the geometry whatsover except for transforms (position, rotation, scale for the object as a whole) and displaying it alongside with the NURBS model in the viewport to serve as a 3D high-poly reference to model off of.
I realize that this is a feature which would need crazy amounts of developing time to implement, but it would make MoI the go-to solution for hobbyists who e.g. want to take a scanned object and re-model it accurately.

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Hi Stwend,

re:
> it would make MoI the go-to solution for hobbyists who e.g. want to take a
> scanned object and re-model it accurately.

There have been a lot of requests for this so it's kind of on my radar but one of the things that helps keep MoI to be streamlined and easy to use is not trying to focus on doing too many different kinds of specialized tasks all jammed together into one single interface.

Right now this type of reverse engineering task is one of those general "not focused on" areas. Really to do a proper job of making it work would involve more than just displaying it, there would need to be a variety of tools added in addition to that to make the whole area work decently.

If you need to do this kind of work a lot, some other program like Rhino would be a better tool for that job right now.

- Michael

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Hi Michael,

I appreciate you answer a lot. It's good to hear the feature is on your radar, which is all I hoped for - right now I'm using Blender for turning the scan into a decent model, and I'm so far in that it wouldn't make sense to migrate to Rhino now, but let me tell you it's a huge pain to create the object (a car) using subdivision modeling. When I need to do that kind of thing again in the (far) future I hope I'll be able to use MoI for the job.

Best,
Stefan

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