MCG Sweep Scale

6 votes
Date Updated: 

You can use a Sweep to loft on multi-curve spline....but you lose the Scale functionality of the normal Loft. Enter this....MCG Sweep Scale.


Then can be found in modifier list (naturally, you should add a Sweep first)


ver 1.01: option to work with non-Sweep objects (doubt if you need this but what the hell...)

ver 1.02: - tried my best to fix the glitches at start of each element, I've fixed the 2nd loop but the 1st loop of each element is still not playing nicely. This is due to the operator MeshElements screwing up the verts order.

 - also added option to scale the mesh as ONE even thought it may be physically made of several elements. In this case, it works perfectly, there are no glitches at the start.

ver 1.03: fixed the glitches at the start of each element. So you can donate now !!!

ver 1.04: fixed Spline Interpolation Max2017 defect (the Scale curve).


3ds Max Version Requirement: 
Other Requrements: 
2016 + Extension1/2 + SP3, 2017, 2018
Video URL: 
vu_sweepscale_1.00.zip8.05 KB
vu_sweepscale_1.01.zip8.18 KB
vu_sweepscale_1.02.zip9.89 KB
vu_sweepscale_1.03.zip16.48 KB
vu_sweepscale_1.04.zip16.76 KB


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obaida's picture

same error

i did as you mentioned but got the same error

error.jpg 134.17 KB
citizenWOLF's picture

twist option?

Can you add twist option? (like it is for Loft - Deformations)

vusta's picture

do steps below your post...

due to auto conversion glitch

obaida's picture

2018 error

Thanks vusta for your effort .
i got error when installing on max 2018 while converting
(Validation failed for ***\Autodesk\3ds Max 2018\Max Creation Graph\Tools\Vu_SweepScale.maxtool : Only sub-graphs used as function can have unconnected inputs.)

vusta's picture

rename .mcg to .zip

extract all to:
C:\Users\xxx\Autodesk\3ds Max 2018\Max Creation Graph\Tools

in Graph Editor, open Vu_SweepScale.maxtool from above


Don't ask....however AD is auto converting pre-2018 graphs to 2018 graphs is none of my business...

brainsgonedead's picture

2018 Error

Hi, just tried to install this inside 3D Max 2018.3 and get the following installation error

Type resolution error occured at node 20:For Each. Mismatched number of arguments from Fn2[Array[Vector3],Array[Vector3]->Array[Vector3]] to Fn1[T->U]

vusta's picture

little trick

to show that your Scale curve does not necessarily have to be linear, ie. it can be any shape, curling back on
a circle,

vusta's picture

ver 1.04:

fixed Spline Interpolation Max2017 defect (the Scale curve).
(this is AD's fault)

If you have 2018, the Spline Influence is quite nice....check this video

there it shows you can create a 'lump' in the Scale curve so if you animate the Influence helper going left to right, then cycle the keys
to repeat forever, you'd have the lump going thru the Sweep as a loop.

If you don't have 2018, you could still do similar effect with Affect Region...but a bit more clunky.

vusta's picture

i tested in 2016

usually it should work for 2017/18 also...i'll check soon

titane357's picture

So, you mean it is time for

So, you mean it is time for me to switch to 3dsmax2018 ?
I use 2017, and it don't work, I tried on max 2018 and works fine...
Thanks for your patience... :-)

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