Find identical geometry and instance it

I have the same need as you described with repurposing CAD data. This works well! Kudos to you!Thank you!

For a more predictable result, which instance will be taken as a basis, I suggest taking the last object from the selection.

Not always instances are oriented correctly. What if to check not the angle between the normals of the faces and the distance between the centers of the faces, but to compare the positions of the corresponding points in the space of the first face? Have you tried this method?

Hello,I apply this script to this model I attach it her, before applying the script i reset Xform for All geometry but when i apply it some of geometry are moved from it place and some are rotated, and i wish if you can tell me how to solve this problem, thanks in advance.

https://www.dropbox.com/s/fih1sadfv2j5qti/light-part.max?dl=0

Hey,first thanks a lot for this script,I'm interested to develop this script to be multi core script to be able make a huge calculation in short time , there is any possibility ????
Thanks in advance.

1 create box (box 01)
2 making a copy of boxing (box 02)
3 convert mesh (box 02)
4 convert poly (box 02)
5 convert poly box 01
6 Findidentical run and did not find out the identity of the script

and we fix it?
is messed up, it Improves the
7 convert mesh (box 02)
8 convert poly (box 02)
9.Findidentical run and find the identity of the script
I do not know why.
It really is a bug.

Is there a way to specify what object will be the reference one? Eventually with a name suffix, like _master ?
I saw that the object with the starting vertices is taken as reference.

I have a question, how does the script detect what object it takes as a reference?
Because i've encountered an issue when i've cloned a bunch of cylinders, and gave them different transforms + resetxform, but kept one "straight".
The script didn't take the straight one as a reference, but a rotated one, and broke the original one rotation.

I've attached a max file for example. There, Tube_01 is the straight one but the script takes Tube_00 as being the reference one.
In fact, Tube_00 was the first created.

Me and I needed a version that has a ProgressBar:

https://dl.dropboxusercontent.com/u/1587713/script/Find_Identical_geomet…

(the only difference is the progressbar in the original script)

headd!
of course,
only one word to replace :)

This script will only work on the selected objects.

https://dl.dropboxusercontent.com/u/1587713/script/Find_Identical_geomet…

Awesome script, especially propagating the transform of the original mesh.

Is there any way to do this calculations only on visible objects, because, for example, some of them i don't want to be instanced, and i could easily hide them.

Not only to find the same objects, but it also calculates how transformations were wearing ...
For me, this is incredibly good.
Other scripts have not found that it could.

anubis and enthed, if you want to make it faster and better there are a few simple things you can do.
first off leave the worldTM out of it and multiply the positions of items (verts faces ect) by the inverse transform to get em to local space, then dont check all faces or verts if you check 42 of 3k verts for their relative position in the mesh and they match the index and position its highly likely the meshes are equal.. plus it will create a seperate reality everytime you run it .. if you got that joke grats at your memory ;)

Hi. I tried this script on easy scene width 20 objects importet by 3DS format from sketchup, but script doesn't work properly. See the attachement. Your script helped me, but on this object doesn't work and i don't know where is a mistake. Thank you.

goooood script :)

The current version doesn't work with the new BodyObjects. It doesn't found identical geometry while compage the maded snapshots.

The script http://www.scriptspot.com/3ds-max/scripts/instance-identical-geometry can handle BodyObjects.

IMHO a good idea: Merge the scripts.

Thanks Jedie, I still work with Max2009, and I glad to hear that my script is compatible with objects that even I've no seen yet :) also I appreciate your advice to merge both scripts. If Martin permit I could add his face topology checks as an option to my script.

Its very hard workaround coding to achieve the goal ;-)

[EDIT] I wrote something from scratch right now:
http://www.scriptspot.com/3ds-max/scripts/instance-identical-geometry

I hope it helps.

Best regards,
Anubis

Yes, I saw your script "Anubis" but it really don't solve the problem I was after, if you are not hiding that in something I can't see of course. That is if you have imported geometry from a CAD system, you normally get several nodes that should be instances but have different orientation and different transforms.

1st, I have tried to take care of that, so even if they have different transforms and pivot points according to the geometries direction it will solve the instancing. I use their first face transform of the both objects to translate the instanced node to the right place.

2nd, Even if the face count is the same you can't be certain that the models are the same so I try to do a topology check on each face, maybe not the fastest one, but still it's there ;-). I can't see that in your script.

Your script looks more professional than mine so you could probably redo my script with above features if you want too !!! ;-) If you do I would love to see it.....

/Martin

In my code (it's just an quick example) show how I'll struct logical the code (to can extend it with more comparing options), and yes, that topology check on each face I found as slow. I see your point to go on this way, I just think so there must to be some more faster way... Sorry so dubd your script ;) Don't worry, you done good script, am just a mxs maniac (lol). I'll post another script that also will not sort your issue with CADs objects but may will bring to you some ideas :) [edit] It's here: http://www.scriptspot.com/3ds-max/scripts/select-similar-objects

[edit 2] ...if you attach a small example max scene file (with few imported CAD objects) just to test on it, I'll check it out later on to see if I can find something.

cheers,
Anubis

No problem I will look at your code for inspiration... ;-)
I have included a test file for you....

Unfortunately I cannot open the scene file. Recently I saw the same missing dll error and only can guess it come from files maded in Max 2010. I forgot to insert so I work on Max 2009.

I have added a collada file...

Thanks for the file. I already have an idea that work fine here, but now I can test it better on your file. Of course, as any man and I have to fight with my problems, so I can't tell when I'll done with this task (just hope will be soon).

[edit] I was done something, attached ;-)

Cheers,
Anubis

Cool man, always wanted something like this!
Thanks!!