Instance On Curve

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Generate Instance On Curve 1.3Author: Julien Carmagnac
Updated June 2013 (info) — Based on a part of the »Create Copies along Curve« Compound of Felix Geremus, I try with this tool to cover many possible situation as possible with copies on curves. It work with multiple curves, even merged, and generate as many point cloud as necessary. We can easily edit all of then with the Multi Edit PPG.

The 1.2 update adds these new features and functions: Exposed »accuracy« parameter Adjust scale with real space in X,Y Or Z Delete Last Instance on open Curve Delete Neighbors with distance Random scale on X,Y,Z independently Offset scale on X,Y,Z independently Create from preset Save preset Randomize Update instances

Demonstration videos available here (V1.0) and here (V1.1) and here (V1.2).

Note that the download in the first post of the si-community thread isn't the most current version. Look further down in the thread to find it.

local backup: InstanceOnCurve_v1.3.xsiaddon

julca
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Joined: 07 Sep 2012, 14:24

Re: Instance On Curve

Post by julca » 13 Nov 2012, 19:04

Hello Maximus,

Your right, actually i don't expose the "hierarchy Mode" parameter which is by default set to "Object an Children".
So for now, you have to manually edit this parameter to "Object Only" in your case (because you instanciate a point cloud of instance).

In the ICE Tree it's locate here :
InstanceOnCurve -> instance_on_Point -> Instance Shape -> and edit "hierarchy Mode" parameter.

I hope it will help you.

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Maximus
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Re: Instance On Curve

Post by Maximus » 13 Nov 2012, 19:54

Thank you! that worked

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druitre
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Re: Instance On Curve

Post by druitre » 13 Nov 2012, 23:14

Thank you, looks really useful.

gdebello
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Re: Instance On Curve

Post by gdebello » 24 Nov 2012, 20:16

This looks great! Thanks for sharing.
Glen
I use Softimage for game development. Is there really anything else?
http://www.gdebello.blogspot.com

Falam

Re: Instance On Curve

Post by Falam » 18 Dec 2012, 16:27

It would be nice if this tool worked on Reference objects ? I have a hierarchy of objects that can bend with the null being the parent of all the "parts" but Instance on curve cannot bend objects around a curve ?

julca
Posts: 140
Joined: 07 Sep 2012, 14:24

Re: Instance On Curve

Post by julca » 12 Jan 2013, 21:59

Hello Falam, sorry for my late reply i-) .

What do you mean by reference objects ?
Currently you can add null object to the Samples group and all sub objects in your null hierarchy will be instanciate on the curve.
If you want instanciate individually all sub objects, just put them directly into your Samples group.

You can detail your question, I will answer quickly is promised !

Falam

Re: Instance On Curve

Post by Falam » 13 Jan 2013, 05:14

julca wrote:Hello Falam, sorry for my late reply i-) .

What do you mean by reference objects ?
Currently you can add null object to the Samples group and all sub objects in your null hierarchy will be instanciate on the curve.
If you want instanciate individually all sub objects, just put them directly into your Samples group.

You can detail your question, I will answer quickly is promised !
Thanks for that tip :)
What I mean is, I have a object that has a hierarchy of objects, this object has 'joints' that can bend and I have imported it into the scene as a reference object, from my point of view, instance on curve won't accept reference objects ?

Going back to the first sentence :), I would like the object to bend, to clearer understand what I'm talking about think 'chain' as in bicycle chain but not an exact 'bicycle chain' :) I would like the 'chain' in my case the parts to bend on the curve.

julca
Posts: 140
Joined: 07 Sep 2012, 14:24

Re: Instance On Curve

Post by julca » 13 Jan 2013, 13:08

You can put a reference model with a hierarchy of objects on the "Sample" group and it will be instanciate with all sub objects.

Now, if you wan't bend a hierarchy of objects along the curve you can put all sub objects individually in your Samples group (see picture above).
instanceOnCurve_abcdef.jpg
Don't forget to uncheck the "Randomize Selection" parameter.

Otherwise, you can use the Derform By Curve operator.
Hope that help you !

Falam

Re: Instance On Curve

Post by Falam » 14 Jan 2013, 07:05

julca wrote:You can put a reference model with a hierarchy of objects on the "Sample" group and it will be instanciate with all sub objects.

Now, if you wan't bend a hierarchy of objects along the curve you can put all sub objects individually in your Samples group (see picture above).
instanceOnCurve_abcdef.jpg
Don't forget to uncheck the "Randomize Selection" parameter.

Otherwise, you can use the Derform By Curve operator.
Hope that help you !
My results are pretty good, although I have a suggestion. :) You mentioned if I want a hierarchy of objects along the curve to bend, I should place all object individually in the 'samples group'.

What if they are individual with a null being the parent (reference object) this is my scenario, and they are not bending ? To clarify, the null is the parent of all the individual parts, imported into the scene as a reference object, instance on curve is applied to the curve and the null with all it's individual pieces is packaged up as a 'group' and placed into the 'samples group' of the instance to curve tool, although the individual parts of the objects are not bending along the curve.

julca
Posts: 140
Joined: 07 Sep 2012, 14:24

Re: Instance On Curve

Post by julca » 14 Jan 2013, 09:06

Yes, you must place all objects individually in your group (or select them with your curve before creation).
Because you may want to instanciate simples objects and model/null composed by a hierarchy of objects, together.

Also, if you want to preserve your hierarchy with the null, first generate instance with your curve and null selected and after remove manually your null from the group and put your childs objects into it.

Falam

Re: Instance On Curve

Post by Falam » 15 Jan 2013, 02:29

julca wrote:Yes, you must place all objects individually in your group (or select them with your curve before creation).
Because you may want to instanciate simples objects and model/null composed by a hierarchy of objects, together.

Also, if you want to preserve your hierarchy with the null, first generate instance with your curve and null selected and after remove manually your null from the group and put your childs objects into it.
All my objects are individual objects, the null is the parent for all those parts, below is what the result looks like. The parts are not bending along the curve, rather the object duplicates it's self (instance) along the curve.

Image

julca
Posts: 140
Joined: 07 Sep 2012, 14:24

Re: Instance On Curve

Post by julca » 15 Jan 2013, 12:30

You may place your pivot at the beginning or end of your objects and then use the next influence parameter (as in the photo below) .
InstanceOnCurve_nextInfluence.jpg

Falam

Re: Instance On Curve

Post by Falam » 26 Jan 2013, 08:43

julca wrote:You may place your pivot at the beginning or end of your objects and then use the next influence parameter (as in the photo below) .
InstanceOnCurve_nextInfluence.jpg
What is missing is collision detection, or if it can work with, mesh paint, I think that was it where you can move objects around as if your painting!

julca
Posts: 140
Joined: 07 Sep 2012, 14:24

Re: Instance On Curve

Post by julca » 16 Feb 2013, 23:48

Hello !

Here is an update of Instance On Curve now 1.2 with new functionalities :
- Expose "accuracy" parameter
- Adjust scale with real space in X,Y Or Z
- Delete Last Instance on open Curve
- Delete Neighbors with distance
- Random scale on X,Y,Z independently
- Offset scale on X,Y,Z independently

And new functions in the menu :
- Create from preset
- Save preset
- Randomize
- Update instances (workaround to a softimage bug : http://www.si-community.com/community/v ... =15&t=3009)


You can see an overview below
InstanceOnCurve_v1.2.rar
(107.56 KiB) Downloaded 447 times
You can also play with the "delete neighbors" compound which is part of the main compound.
delete neighbors.xsicompound
(38.18 KiB) Downloaded 298 times

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Maximus
Posts: 952
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Re: Instance On Curve

Post by Maximus » 17 Feb 2013, 05:25

Wow..this is brilliant and fast!
Thanks a lot for sharing this tool :)

Falam

Re: Instance On Curve

Post by Falam » 17 Feb 2013, 07:59

julca wrote:Hello !

Here is an update of Instance On Curve now 1.2 with new functionalities :
- Expose "accuracy" parameter
- Adjust scale with real space in X,Y Or Z
- Delete Last Instance on open Curve
- Delete Neighbors with distance
- Random scale on X,Y,Z independently
- Offset scale on X,Y,Z independently

And new functions in the menu :
- Create from preset
- Save preset
- Randomize
- Update instances (workaround to a softimage bug : http://www.si-community.com/community/v ... =15&t=3009)


You can see an overview below
InstanceOnCurve_v1.2.rar
You can also play with the "delete neighbors" compound which is part of the main compound.
delete neighbors.xsicompound
Thanks, for the update. I like the preset option. Although I don't quite understand how the delete neighbors helps :) ?

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