Full Version: V5 beta Sep-17-2025 available now (Sticky)

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Thanks for fast answer Michael.

For my problem - to find visualy similar angles of surfaces i think will be better to have automatic ability made it different color when this lines on custom angle not 0\90\180\270\360.

I propose when in scene you have two or more same angle constraints - bind them a one special color. If someone add them on one angle and with custom angle i think this have sense to visualy made it clearer(For some reason user made it a couple versions and i think it can improve user expirience). When this construction lines more it can be a mess.

I think also add checker box to change it from gray to multicolor made sense too, or make also not vivid colors

Image Attachments:
photo_2025-12-16_22-33-48.jpg 

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Hi blackboard, it's an interesting idea but that's a lot of things to try and control. It seems like it would be a pretty complex UI.

- Michael

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Love the update! I've had a blast modelling some simple lens holders today and couldn't resist playing with the new features.

The move face feature covers one of my main pain points when switching to MoI from Rhino (would love to see ability to move edges). Heck, at this point the only annoying thing that immediately comes to my mind when I think of it, is selection priority when making fillets / chamfers. If I extrude a profile and then want add some fillets to the edges of a resulting solid the original curve overlaps with the edges - and comes in the way. Fillet command picks this curve instead of edge. Would love to have some sort of selection priority with this command - pick edges first, if none pick curve.

In Rhino this is not that annoying as Rhino asks which object you wish to select when there are overlaps (so in this case - a menu would appear with option to pick edge or curve). It's not fantastic either, but definitely less annoying.

For the time being I've mapped a key to hide curves... but that's not really great solution.

But that sounds a bit like a rant - which it really shouldn't. The update is fantastic. And a side note - I'm surprised how well in works on my Linux box with tiling window manager (Hyprland) via Wine. One of the reasons that instead of launching a VM with pcie passthrough (and LookingGlass) or grabbing my Rhino laptop I simply did the modelling in MoI (and I'm glad I did :) ).

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Michael, so glad to see you are still at it.

It's been soooo long...the website where I first heard about moi3d (cgtalk) doesn't even exist anymore. :)

Hope you are doing well, and wish all the community here prosperity in the new year.

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If I open a .stp or .igs (may be others, those are just the ones I have), there is now way to know what file is open in the MoI widow. Is there a way to add the file name somewhere?

.3dm shows the file name in the top window bar.

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From an iGes you have Nature and internal object name from the start Program when you click on it!
(but sure not the File name itself! :)

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Re: Is there a way to add the file name somewhere?

Set SetNameWhenOpeningAllFileTypes=y in moi.ini under [Settings] at the top of the file. Access moi.ini by going to Options > General > Edit .ini file

- Peer

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Yep works fine pom.IGS becomes directly pom.3dm*

Details gives the same than above...

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Perfect. Thanks Peer!

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WELLl DONE Michael for this version V5 and new enhancements of Moi3D software.I finally put it in good use even I use V3 version.It shows me if object is solid or joined surfaces,which is very important for 3d printing.I always mention people that Moi3d is very precise CAD software and if they wish to customize my 3d models,they can download trial version.

Keep up with great work Michael :)

If you like please check it out my 3dprintable aircrafts and spaceships on link below.Give me some likes if You wish :)

https://www.crealitycloud.com/user/5781596056

Image Attachments:
gimp-3_VdENo1Hvd4.png 

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Very cool models !

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I am right clicking and dragging. I have been using it this way for years. Sometimes it will start to orbit and then stop and and open file dialog even though I am still dragging. But you are correct that its not just open, its whatever the last command I used. So if I draw a circle, then go and right click to orbit, it will sometimes go straight to drawing a circle again, sometimes it will orbit and sometimes it will orbit and then switch to drawing a circle.

>Len

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Hi Len, do you possibly have another mouse you could try? If the switch on your mouse button is getting worn out and giving spurious release events that could look like that.

- Michael

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This new version looks great for guitar builders!

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Just dropping by to say what amazing software MOI is and how user friendly it is.
This new V5 is something else.
Thanks Michael.

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Hi Michael, hope you’re doing well!

After quite a long break from actively participating in the forum, even though I’ve still been dropping by as a reader from time to time, I’ve decided to get back into using Moi again. I’ve always considered it one of the best 3D modeling programs ever written.

For now, I have a few questions:
1. Do you have an estimated release date for the official V5, and what will the upgrade price be from V4?
2. Where can I find complete and up-to-date API documentation for Moi? I’m especially interested in the JavaScript interface, as I’d like to experiment with developing some new scripts.
3. What are the main differences in Moi when using the “ACIS” libraries versus “Solid++” for creating fillets and chamfers?

Thanks in advance, and all the best!

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Hi Marco, welcome back!

re:
> 1. Do you have an estimated release date for the official V5, and what will the upgrade price be from V4?

I don't have a specific date set yet but hopefully pretty soon.

Upgrade price is expected to be the same as previous version upgrades, which is $100.


> 2. Where can I find complete and up-to-date API documentation for Moi? I’m especially interested
> in the JavaScript interface, as I’d like to experiment with developing some new scripts.

There is not any official documentation for MOI scripting available, but there is some collected by users here:
https://moi3d.com/wiki/Scripting


> 3. What are the main differences in Moi when using the “ACIS” libraries versus “Solid++” for
> creating fillets and chamfers?

Mostly that the ACIS libraries are far more robust and handle many cases that fail with Solids++.

- Michael

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> I don't have a specific date set yet but hopefully pretty soon.

Approaching this question from a different angle: the current build expires in 4 weeks. Do you estimate that were would be a period where we have to revert back to the v4 while the v5 release is shaping up after expiration, or would there be a new build (even just an extension of the expiration date) to bridge the gap?

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Hi summarity, I will make a new v5 beta build with an extended expiration soon. I'll make sure that there is a v5 beta that overlaps the v5 release.

- Michael

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Thanks Micheal!

A separate question:

I'm working on a few plugins targeted at v5. Are there plans to update the embedded JS/web engine? AFAICT MoI 5 is using QtWebKit, which works, but has been deprecated for about 7 years and replaced by QtWebEngine. There was a fork for a while at qtwebkit/qtwebkit, which was abandoned 3 years ago, then MoveableInk picked up a new fork at https://github.com/movableink/webkit - no idea if this would be a viable upgrade path compared to moving to QtWebEngine.

This leads to some friction trying to use fairly standard development tools, e.g. TypeScript targeting ES6, even targeting very early 2016-ish syntax or styles using CSS grids or flexbox features which were standardized shortly after the cutoff when QtWebKit development ceased.

This is on macOS, so I don't know if this is different for the Windows builds.

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