T-splines and Rhino 6

Can anyone tell me if Rhino 6 will have T-spline type capability ?
I have seen that Tsplines itself will no longer be available for future Rhino versions

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You are correct that T-splines itself will no longer work in Rhino 6. It will keep working in Rhino 5. McNeel are hard at work to create SubD modeling capabilities in Rhino 6, but this may not be ready at the time that Rhino 6 is released. It will be available in the WIP version of Rhino 6, also after Rhino 6 has been released.

For more info see:


Thanks, this is good news :slight_smile:

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Ohhhhh crud, such a shame they did not make v6 backwards compatible for T-Splines.

I hate to say it, but it makes 6 pretty much a no-go for me.

Looking forward to the day Rhino has its own SubD Splines clone… Guess I will have to wait to see what v7 brings.

That is not a slam against Rhino, its just that the two together are requirements for my work flow.

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FYI, the Rhino WIP version (going forward to v7) has the SubD functionality.


Of Course, what did you expect from Autodesk. This is exactly how they get rid of the competition. Just recall Softimage XSI - Bought-Stripped-Parked. They never innovate (maybe rewrite software for efficiency and stability when they have to) or compete in terms of pricing or offering. Imagine RH6 integrated with Tspline, Paneling tools, plus Grasshopper and maybe we add in something like Layout. Who would spend 3500 usd or more on Autodesk products


Hey! Does it have something similar to TsPipe as well? Also, what are the commands to access these functions? Thank You very much!

When will the wip be available

WIP is already available to download


T-splines, S, Q, W, E, key value where is the file, inside? Want to manually edit in bulk

Xirus from Marrakoi is pretty nice.
But yeah, you’ll have to learn another tool.

Is there anyway someone could edit T-splines or Rhino 6 so its compatible with Rhino 6?

Autodesk could do that.
It’s unlikely that they will.

Is Rhino 6 fundamentally different from Rhino5 that it wont work out of the box with a minor tweak?

There are important ways in which Rhino 6 is different from Rhino 5. One fundamental difference is the technology used to compile the program source code. This has changed from Rhino 5 and Rhino 6, and thus, any 3rd party developers targeting the Rhino C++ SDK will need to recompile their projects in order to be compatible with Rhino 6.

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I can confirm that the only really feasible way to do it would be for Autodesk to do it - in order to get some of the T-Splines plugin functionality working we had to hook into Rhino at a very deep level. And from my point of view, it is extremely unlikely that Autodesk will ever release another version of the Rhino plugin.

I personally cannot wait until the Rhino7 SubD toolset is fully deployed. It’s gonna make everyone forget about TSplines and especially that dumpster fire known as Clayoo.


@wingnut3414 I will leave t-splines and Rhino 5 once we have native sub-d in Rhino that does the same or more…but for now I love the product, find it extremely useful and very grateful to those that created it.

T-splines allowed me to move away from Clayoo which I “used” from the day it was released. Not surprised but sad to see Clayoo never really went anywhere. I like options.

today, 17 August 2019, i just downloaded a trial version of Rhino 6. apparently it still does not have T-spline capability? is that true? also there is a link for support but in the USA, i am in Germany. can anyone tell me/ us how to add T-Spline capability to our Rhino 6 for windows? thank you!