Re: Cluster of points driving another cluster of points

[peter_b]

woops – not much time behind the computer today - 

> Still some rotation problem I might ask you ;)

you mean in the test scene I sent you?
at first sight the rotations looked correct but I’m not sure



From: Olivier Jeannel 
Sent: Tuesday, October 06, 2015 9:34 PM
To: mailto:softimage@listproc.autodesk.com 
Subject: Re: Cluster of points driving another cluster of points

Ok I'll check that tomorrow ;)
Well, the ribbon plan is ended, i defenetly prefer the tests I made rather than 
the end result, but at least the director is happy.
Too bad the  strand orientation is such a nightmare, could have be so cool with 
sole little maintenance...

The destruction (it's another shot) part is because I decided to run some tests 
on ice. In fact the sequence has been made in c4d and the fractures were so bad 
that I felt the need to prepare a backup solution just in case. Finally the 
shot was validated as is. Nice rdb in c4d, with easy control, but the fracture 
tool is just a bad joke.
I'm half happy with momentum, some nice ice control, but feels maybe 
unfinished. Or maybe not enough docs.
So well, the  ice destruction is a side project. I'm very happy with that 
cluster solved problem :)
Still some rotation problem I might ask you ;)

And the whole project is a documentary about le Louvre, how it was built along 
history. 

Le 6 oct. 2015 20:25,  a écrit :

  just sent you a second test which might work better for you – see your inbox.

  first you’re building a castle with unfolding ribbons and then you are 
collapsing it?
  sounds like a cool job you’re on!



  From: Olivier Jeannel 
  Sent: Tuesday, October 06, 2015 6:59 PM
  To: softimage@listproc.autodesk.com 
  Subject: Re: Cluster of points driving another cluster of points

  Hey Peter ! 
  You just created this ? It's very impressive !
  I'm looking at it atm, very interesting.
  For what I wanted to use, it doesn't work (yet).

  Here's the exact scenario
  I've made a Mom Simulation of a tower colapsing down. I've used the 
Mom_Create_Cluster By Cloud  tool so that I have big chunks made of smaller 
chunks that collapse again themselves later.
  This is done in ice so each chunk has a particle center.

  Then I wanted to add some inside bricks to give details : Imagine bricks 
stucked into chunks of mortar. 
  When the chunk falls, it brings with him the cluster of bricks attached to 
him (the closest bricks) (no RBD). 
  So I thought  I  could generate a brick wall, and use the center of each 
chunk to drive the SRT of the clustered bricks.

  But for this, I'll need 2 pointclouds. 
  One PC is the RBD chunks (master/driver)
  The other PC is the bricks (Slaves)

  Not sure if I'm clear

  But your example is superb, and very inspirative. Thank's a lot for taking 
the time to put this together !


  Olivier

  On Tue, Oct 6, 2015 at 5:10 PM,  wrote:

sent a quick test scene offline – 
unfortunately I don’t have the ones I’ve done in the past, which tackled a 
few interesting issues (at least for me)

From: Olivier Jeannel 
Sent: Tuesday, October 06, 2015 2:33 PM
To: softimage@listproc.autodesk.com 
Subject: Re: Cluster of points driving another cluster of points

Hi Peter, 
Do you have a scene that I could dissect ?




On Tue, Oct 6, 2015 at 1:28 PM,  wrote:

  I’ve done it like this: 

  upon generation of particles, 1 out of x becomes a master – the others 
become slaves 
  not behind the computer, but I used the modulo of the particle ID by x, 
which gives the remainder upon division by x. if it’s 0 you make it a master, 
if not a slave. Add a boolean attribute, for example ‘slave’, so all of this is 
done on ‘execute on emission’

  later on, you can use this ‘slave’ attribute as a condition to do all 
kinds of things differently for masters and slaves in the same cloud.
  for instance, ‘add forces’ for the masters only. (slave attribute driving 
an ‘if’ port )

  in my case the slaves had to stay with their ‘birth’ master – so upon 
generation, besides the slave attribute, I saved a second attribute which was 
the ID of the master (the particle ID minus the remainder from the modulo I 
think)

  there’s many ways you can drive the slaves.
  in my case I needed an elastic link, where they would also orbit around 
the master as well as collide with obstacles, and look kind of natural, so they 
were still simulated - (and there was also an overall ‘character’ to keep in 
mind)

  at the basis, using the id of the master I got it’s position, and used 
that as a target.
  point position minus the master’s point position used as a vector force 
will give a force pulling towards (or away from) the master.
  this was modulated by a change range based on the length of that vector – 
so if the distance got bigger the force was stronger and vice versa. this gave 
it the elastic effect, leaving the slaves a bit more loose when near the master 
but pulling them more rigidly 

Re: Update Referenced Material Library from any scene?

[Ed Manning]

you could merge all the compunds into one big compund and export that...



On Wed, Oct 7, 2015 at 10:24 AM, David Saber  wrote:

> Thanks guys.
> I didn't try compounds yet for this specific need.
> I believe one can export and import a whole material library at once, but
> with compounds, you need to export each materials one by one, not?
> See you!
> David
>
> On 2015-10-07 09:55, Rob Wuijster wrote:
>
> Yes, you can export as one file, and import again.
> It might be a good thing to search the archive of the list for this
> subject, as there are a few going into this.
>
>
>

Re: use python installed with softimage

[Eric Thivierge]

When you install a new python / pywin you typically have to do the
runonce.bat to re-register things properly. Also note that typically the
last PyWin install is the one that Softimage will use. If you install PyWin
for 2.6 after 2.7, it'll pick up 2.6. This is from my experience at least.

You shouldn't need to re-install for Python issues.


Eric Thivierge
http://www.ethivierge.com

On Wed, Oct 7, 2015 at 11:04 AM, Ivan Vasiljevic 
wrote:

> Softimage reinstall helped, but I forgot about runonce.bat. Bet that would
> help too! I've also removed python installation as well as pywin...
>
> Thanks Eric, thanks Stefan!
>
> Cheers.
> Ivan
>
> On Wed, Oct 7, 2015 at 3:09 AM, Eric Thivierge 
> wrote:
>
>> Open the Softimage command prompt and run the runonce.bat
>> On Oct 6, 2015 9:01 PM, "Stefan Kubicek"  wrote:
>>
>>> Are you saying that even when setting the preferences back to using
>>> Softimage's "internal" Python version it would fail to initialize that
>>> scripting language? I never had this problem. Try renaming the external
>>> Python folders one by one and restart Softimage each time to see which one
>>> is offending. If that doesn't help I'm out of ideas.
>>>
>>>
>>> Hi,
>>>
>>> I have python26 and python27 on my C partition installed and now I am
>>> not able to enable python that comes with softimage 2015. When I do and
>>> restart soft there is no python, just vb and jscript.
>>>
>>> Anyone had and possibly solved this issue?
>>>
>>> Thanks.
>>> Ivan
>>>
>>> --
>>> Ivan Vasiljevic
>>> -
>>> Lighting TD
>>> Founder, Digital Asset Tailors
>>> -
>>> web:http://digitalassettailors.com/
>>> email:  i...@digitalassettailors.com
>>>
>>>
>>>
>>>
>>>
>>> --
>>> ---
>>> Stefan Kubicek
>>> ---
>>> keyvis digital imagery
>>> Alfred Feierfeilstraße 3
>>> A-2380 Perchtoldsdorf bei Wien
>>> Phone: +43/699/12614231
>>> www.keyvis.at ste...@keyvis.at
>>> -- This email and its attachments are --
>>> --confidential and for the recipient only--
>>>
>>
>
>
> --
> Ivan Vasiljevic
> -
> Lighting TD
> Founder, Digital Asset Tailors
> -
> web:http://digitalassettailors.com/
> email:  i...@digitalassettailors.com
>
>
>

Re: use python installed with softimage

[Ivan Vasiljevic]

Softimage reinstall helped, but I forgot about runonce.bat. Bet that would
help too! I've also removed python installation as well as pywin...

Thanks Eric, thanks Stefan!

Cheers.
Ivan

On Wed, Oct 7, 2015 at 3:09 AM, Eric Thivierge  wrote:

> Open the Softimage command prompt and run the runonce.bat
> On Oct 6, 2015 9:01 PM, "Stefan Kubicek"  wrote:
>
>> Are you saying that even when setting the preferences back to using
>> Softimage's "internal" Python version it would fail to initialize that
>> scripting language? I never had this problem. Try renaming the external
>> Python folders one by one and restart Softimage each time to see which one
>> is offending. If that doesn't help I'm out of ideas.
>>
>>
>> Hi,
>>
>> I have python26 and python27 on my C partition installed and now I am not
>> able to enable python that comes with softimage 2015. When I do and restart
>> soft there is no python, just vb and jscript.
>>
>> Anyone had and possibly solved this issue?
>>
>> Thanks.
>> Ivan
>>
>> --
>> Ivan Vasiljevic
>> -
>> Lighting TD
>> Founder, Digital Asset Tailors
>> -
>> web:http://digitalassettailors.com/
>> email:  i...@digitalassettailors.com
>>
>>
>>
>>
>>
>> --
>> ---
>> Stefan Kubicek
>> ---
>> keyvis digital imagery
>> Alfred Feierfeilstraße 3
>> A-2380 Perchtoldsdorf bei Wien
>> Phone: +43/699/12614231
>> www.keyvis.at ste...@keyvis.at
>> -- This email and its attachments are --
>> --confidential and for the recipient only--
>>
>


-- 
Ivan Vasiljevic
-
Lighting TD
Founder, Digital Asset Tailors
-
web:http://digitalassettailors.com/
email:  i...@digitalassettailors.com

Re: Update Referenced Material Library from any scene?

[David Saber]

Thanks guys.
I didn't try compounds yet for this specific need.
I believe one can export and import a whole material library at once, 
but with compounds, you need to export each materials one by one, not?

See you!
David

On 2015-10-07 09:55, Rob Wuijster wrote:

Yes, you can export as one file, and import again.
It might be a good thing to search the archive of the list for this 
subject, as there are a few going into this.

Re: Update Referenced Material Library from any scene?

[Rob Wuijster]

Yes, you can export as one file, and import again.
It might be a good thing to search the archive of the list for this 
subject, as there are a few going into this.


@David, here's the old thread from me about this from last year:
https://groups.google.com/forum/#!topicsearchin/xsi_list/material$20library/xsi_list/aKOZmzme_MU

Hope it helps,

Rob

 \/-\/\/
On 7-10-2015 8:27, Mirko Jankovic wrote:
you don't have to import one by one, you can export and import whole 
material library, or I missed something in the chat? :)


On Wed, Oct 7, 2015 at 8:17 AM, David Saber > wrote:


Thanks both of you for the help. So referenced MatLibs are not
usable... And there's no chance this is going to be fixed in the
future ;) :(
Compounds could be nice but I'd need to import a whole set of
materials at once, not one by one.
See you!
David

On 2015-10-05 18:51, Simon Reeves wrote:

you can also use compounds now which can be handy

On Mon, 5 Oct 2015 at 10:58 Rob Wuijster mailto:r...@casema.nl>> wrote:

A master scene is kinda vital to a healthy production
workflow, but imho you should avoid referenced material
libraries.
They're flaky at best, and when things go wrong they go
horribly wrong.

We tried a couple of times to use the feature, but every time
ran into issues across scenes or renders.

but ymmv. ;-)




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