How can I control "Bend SOP" parameters, using an attribute?

Forums Technical Discussion How can I control "Bend SOP" parameters, using an attribute?

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Masoud: Member; 407 posts; Joined: Aug. 2015; Offline

July 11, 2019 10:21 a.m.

Hi guys;

How can I control “Bend SOP” (or other SOPs like that) parameters, using an attribute?

Thanks.

Attachments:
bend2.JPG (271.1 KB)

Masoud Saadatmand (MSDVFX)


Tanto: Member; 385 posts; Joined: Nov. 2016; Offline

July 11, 2019 11:04 a.m.

It doesn't look like this node can be evaluated per point, it will take the first point's attibute value. You can go:

detail(0,"attributeName",0)


Masoud: Member; 407 posts; Joined: Aug. 2015; Offline

July 12, 2019 9:23 a.m.

Please take a look at my scene :

Attachments:
bend.hip (116.5 KB)

Masoud Saadatmand (MSDVFX)


Andr: Member; 900 posts; Joined: Feb. 2016; Offline

July 12, 2019 2:10 p.m.

have you tried to unlock the bend node and dive into it?
It's built upon point wrangles. You might be able to customize it to suits your needs


Aizatulin: Member; 472 posts; Joined: July 2005; Offline

July 12, 2019 2:10 p.m.

Hi,

if interested, here is an an older experimental bend deformer using an attribute wrangle, where you can easily add local deformation attributes. I've done this for you, just add a point attribute called @bend (1 ~ full bend, 0 ~ no bend).
I've also tried doing this with the bend deformer (with no success).

Attachments:
bendX.hipnc (101.1 KB)


Aizatulin: Member; 472 posts; Joined: July 2005; Offline

July 12, 2019 2:25 p.m.

Nice idea Andrea,

I thought it wasn't editable. It is quite easy. Just multiply the “theta” with your attribute (in “deformationwrangle1”).

(By the way) you can do the same for the origin …

Edited by Aizatulin - July 13, 2019 02:59:57

Attachments:
bendY.hipnc (128.5 KB)
bendZ.hipnc (132.6 KB)


Masoud: Member; 407 posts; Joined: Aug. 2015; Offline

July 15, 2019 10:02 a.m.

Andr
have you tried to unlock the bend node and dive into it?
It's built upon point wrangles. You might be able to customize it to suits your needs

Thanks

Masoud Saadatmand (MSDVFX)


Masoud: Member; 407 posts; Joined: Aug. 2015; Offline

July 15, 2019 10:02 a.m.

Aizatulin
Nice idea Andrea,

I thought it wasn't editable. It is quite easy. Just multiply the “theta” with your attribute (in “deformationwrangle1”).

(By the way) you can do the same for the origin …

Thank you, too

Masoud Saadatmand (MSDVFX)

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