Apex autorigbuilder - turn off stretchy spline/spine?

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Hi rigging folks.

Building a snake and using the spline and spine setups in the Apex Autorigbuilder. All good, one small issue though. Is there a way to turn off the stretchy spline?


Cheers in advance.
Edited by phinnaeus - Feb. 1, 2026 17:02:55

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Screenshot 2026-02-02 080005.png (2.0 MB)

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Hi, The spline on the rig builder might have some limitations due to keeping it compact and simple. You can however use the spline component where this can be set.

Here is and example of how to set that up.
Edited by william_harley - Feb. 2, 2026 07:12:57

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snake_spline_setup.hip (467.6 KB)

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Awesome, thanks William, checking now.
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Yes thanks for this but its lacking the extra adaptable controls that the Autorigbuilder gives. (up to 12)

I've found that Snakes typically need at least 8 or more depending on the animation.

I've tried adding adding Custom Num Controls but that seems to break the autorigcomponent as it requires only 4.

Also I'm using the spine component for the area around the head for additional control of this area. Not sure if this is the way to go with snakes but its also missing a 'Turn off' add stretch control.

Cheers
Edited by phinnaeus - Feb. 2, 2026 17:32:33

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Screenshot 2026-02-03 082931.png (1.4 MB)

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Added screenshot of previous rig

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Screenshot 2026-02-03 082519.png (1.5 MB)

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Custom works, you just have to be mindful of the curve order. I explain how the curve order works for the spline here => https://www.sidefx.com/forum/topic/96509/ [www.sidefx.com]
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Thanks will check it out.
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