Do you have a pile of Tsplines models you want to revive? Export from v5 in in Box mode as a rhino 3dm file, and open them in v7!
Annnnnd >poof< they are back from the dead!!
Nice!
Extending the exercise: anyone yet worked out a best practice for moving Autodesk Fusion Tsplines over to v7 wip as editable SubD? I havenāt experimented with that yet.
Nike job, Kyle!
Iām actually working on a very similar tutorial as we speak. Iām focusing on how to reverse engineer polysurfaces that were created with T-Splines when the user no longer has access to the T-Splines plug-in. Once I finish editing, Iāll share here!
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Of course this will work (given you export a non triangulated mesh), why wouldnāt it?
Sure. Curious about tips and tricks for success anyone uncovers, since the F360 TS flavor has been in play for so long now.
But, yeah, perhaps itās as simple as you outline; no further considerations? Dunno, no experience moving such here.
Sorry, I didnāt want to sound snarky, just was curious what you believe the problem might be.
Just make sure to export the t-splines bodies by using the āsave control frame as OBJā option when right-clicking on the t-splines body in fusion360.
Then the .OBJ-mesh can be imported into Rhino and translated to a subD.
(Of course there might be slight differences in the way t-splines/fusion and Rhino calculates and smoothes out the subdivisions)
I just tested this and it seems to work as expected.
No snark taken. I had my āis this way too simple to botherā thought moment before posting. @theoutside excellent tutorial had a few basic success caveats, soā¦
Thanks! Obviously Iāll need to play myself too if needed, rather than āleverageā others.
nice! please do!
T-junctions are the biggest issue out of tsplines.
They are not directly compatible with our system, so youāll have to a litte clean up once itās in rhino. BUT the end results are worth it as our system is a bit more friendly for data transfer to other programs than tsplines was.
Thanks, please post any additional info you dig up in regards to F360.
TBH, I hadnāt even considered the fact that F360 still used Tsplines. I donāt use it or have access to it, so Iād be curious as to how well those models transfer over.
Thanks @theoutside this is really usefull and clear.
The T-Junctions (or local details) are really powerful so Mcneel should consider a way to implement it.
Thereās any chance to have a direct import of .Ts file format?
From Fusion you can export in TS specific file format, so this would make the systems compatible.
Sorry t junctions are not gonna happen. Our math is different from their patented math. We couldnāt use it without paying ad, and Iām going to be bold and say that isnāt likely to happen.
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Still, awesome that anything can be salvaged from those. Thanks.
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Thanks @theoutside for the explanation.
T-Splinesā¦ make sense that the āTā means smtg 
I donāt know about the patent but could be possible to have Hidden Edges?
Would be great to being able to reduce the visual complexity of a mesh when your adding details.
Using your math but partially hiding edges and underlaying points.
Or this is part of the patent as well?
not sure about hidden edges but, if they are in any way a t junction hidden or not, I believe this would be a no go zone for us- Iām not a patent lawyer by any means, but in my simple cave man brain says we canāt do anything with t joints.
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Circling back to the super simple F360 method posted by @norbert_geelen. Worked very well on several past Fusion Tsplines models Iāve experimented with. Thanks Norbert! Was rather obvious in retrospect, though I never noticed, or forgot, the āsave control frame as OBJā option in Fusion. Never had a need for it in past. Now I do!
As Norbet mentioned, the imported smoothed SubD geometry in Rhino isnāt an exact match, but itās pretty darn close, and close enough for āhorseshoes and hand grenadesā, i.e., good enough.
Did get some minimal āsquigglesā @theoutside discusses in his excellent TS plugin-to-v7wip video above. Those can be dealt with.
All and all, straightforward and simple to move your old Tsplines.
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Where is that in Fusion @skysurfer? I thought they had removed the export .ts option?
My first thought was to inquire about the same, but I no longer see the .ts export option. Perhaps Iām āblindā, so apologies in advance if so.
Oh, no, Iām not Fusion User so I know it was there, but, yes,probably they remove it.
How wonderful it would be to have radial and axial symmetry in SubD! Is it too late to add it to R7?
if you have v6, download v7 and try ours for free! Would love to hear your thoughts on how this has developed so far.