Re: Distribute between knots? Know the percentage position of a knot?

2016-04-14 Thread pedro santos 
Yeah I probably should have mentioned what I was after.

- Have a fk chain if controllers with all SRT transformations and
accordingly mesh deformation.
- Not having the  mesh passing strictly by the controlers (interpolated)

null chain
  └ envelope deform a curve
  └ curve deform the mesh.

While curve deform is super smooth is not very flexilble and it's missing
some transforms. So I wanted to have a chain of deformers doing the
deformation instead.

I was indicated Spline Kine in Gear_mc and it does produce interesting
results, but it's interpolated and if you place a Spine Kine under a your
rig LSRT controller it won't scale properly.

But with 2 other sets of nulls, constraints and shady ICE hackery to fix
the scaling issue I managed to get something that looks like I needed.

http://screencast.com/t/lPPEx5bZGM

It won't be as smooth as the curve deform, but its a ok'ish compromise. I
wish it was easier to setup though x)
http://i.imgur.com/f5ZXovk.png
yellow: the spinekine input
cyan: spinekine output: scales weirdly on the X axis.
orange: 2P constrains of the yellows so the curve looks more approximated.
Chain controllers.
rainbow: deoformers picking up cyan's positon and orientation but using ICE
hacker to pick scaling from orange.


Yup Cesar, I'm probably confusing stuff, complicating and I guess you would
have a cleaner and easier to setup solution. :P


By the way, while one can't deform by cluster center on knots, but, it can
constrain objects to cluster knots. Being the up-vector the usual tricky
business ;)


Sorry for the lengthy post.
Cheers

On Wed, Apr 13, 2016 at 3:08 PM, Olivier Jeannel 
wrote:

> Hey Pedro,
> Not sure I understand what you are after, but to bounce on Cesar (^^)
> there's a fit bezier node in ice, and also Bradley - master -Gabe explain
> how to build your own.
>
> https://vimeo.com/11016782
> https://vimeo.com/11079196
>
>
> On Wed, Apr 13, 2016 at 2:52 PM, Cesar Saez  wrote:
>
>> Hi,
>>
>> I think you are mixing up the U coordinate, also known as the "time" of
>> the cubic equation (or whatever you choose to go with) used under the hood,
>> with a linearly distributed points on a curve (basically a post process
>> done after the initial interpolation, length based instead of "time" based).
>>
>> So, if you want to get "percentages" based on the length you will have to
>> calculate it yourself on top of the existing interpolation given by
>> softimage curves, You basically take the full length, divide it in discrete
>> segments generating samples (corresponding to a known percentage) and remap
>> U values linear interpolating to the closest sample point, the more samples
>> the more precise the results will be (this is common practice, even
>> softimage uses internally an approximated approach to get the length of
>> curves by adding discrete segments).
>>
>> I think there's a linearly interpolated bezier compound in the examples
>> that can be used as inspiration of how to go about it (or was in rray.de?).
>> Although depending on the use case a custom node might provide a more
>> performant solution.
>>
>> Cheers!
>>
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>>
>
>
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>



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*--[image:
http://i153.photobucket.com/albums/s202/animatics/probiner-sig.gif]Pedro
Alpiarça dos Santos >>  http://probiner.xyz/ 
*
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Re: Aw: RE: flattening blob particles

2016-04-14 Thread peter_b 
its probably pretty much what Leo suggests:
on the polygonized mesh, get closest location on the bottle, and then linear 
interpolate between that and the point position – so you can blend from the 
original surface all the way to the bottle and anywhere in between. It’s almost 
like a shrinkwrap. Try smooth and fluid shaper as well to see if it helps with 
improving the shape.

From: Leo Quensel 
Sent: Thursday, April 14, 2016 4:40 PM
To: softimage@listproc.autodesk.com 
Subject: Aw: RE: flattening blob particles

I had to do this quite often before - I always ended up flattening the 
resulting mesh with a custom ICE deformer instead of the particles. Also worked 
quite well. 
  
Gesendet: Donnerstag, 14. April 2016 um 12:32 Uhr
Von: "adrian wyer" 
An: softimage@listproc.autodesk.com
Betreff: RE: flattening blob particles
seeing as the condensation pass is separate, i just scaled the mesh in x so 
they only have the top 3rd poking through the bottle matte object



works well enough



a






From: softimage-boun...@listproc.autodesk.com 
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Chris Marshall
Sent: 14 April 2016 11:03
To: softimage@listproc.autodesk.com
Subject: Re: flattening blob particles



These are not the Bibbles you're looking for.

Sorry Adrian, can't help you.



On 14 April 2016 at 10:48, adrian wyer 
 wrote:

doing some condensation on a bottle, have some nice particle distribution, and 
i am aligning to surface, then fscaling in local Y to 'flatten' the bibbles to 
the bottle surface



but as i'm rendering in Redshift, i thought i'd use empolygonizer to make the 
mesh...  only have V3... but can't seem to figure out how to make the mesh 
respect the local scale of the individual particles



is this possible, or can anyone suggest a workaround?



a



Adrian Wyer
Fluid Pictures
75-77 Margaret St.
London
W1W 8SY
++44(0) 207 580 0829 


adrian.w...@fluid-pictures.com

www.fluid-pictures.com



Fluid Pictures Limited is registered in England and Wales.
Company number:5657815
VAT number: 872 6893 71




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www.mintmotion.co.uk

www.dot3d.com



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RE: RE: flattening blob particles

2016-04-14 Thread adrian wyer 
thanks Leo, will keep that in mind for next time!

 

a

 

  _  

From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Leo Quensel
Sent: 14 April 2016 15:40
To: softimage@listproc.autodesk.com
Subject: Aw: RE: flattening blob particles

 

I had to do this quite often before - I always ended up flattening the
resulting mesh with a custom ICE deformer instead of the particles. Also
worked quite well. 

  

Gesendet: Donnerstag, 14. April 2016 um 12:32 Uhr
Von: "adrian wyer" 
An: softimage@listproc.autodesk.com
Betreff: RE: flattening blob particles

seeing as the condensation pass is separate, i just scaled the mesh in x
so they only have the top 3rd poking through the bottle matte object

 

works well enough

 

a

 

  _  

From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Chris Marshall
Sent: 14 April 2016 11:03
To: softimage@listproc.autodesk.com
Subject: Re: flattening blob particles

 

These are not the Bibbles you're looking for.

Sorry Adrian, can't help you.

 

On 14 April 2016 at 10:48, adrian wyer 
wrote:

doing some condensation on a bottle, have some nice particle distribution,
and i am aligning to surface, then fscaling in local Y to 'flatten' the
bibbles to the bottle surface

 

but as i'm rendering in Redshift, i thought i'd use empolygonizer to make
the mesh...  only have V3... but can't seem to figure out how to make the
mesh respect the local scale of the individual particles

 

is this possible, or can anyone suggest a workaround?

 

a

 

Adrian Wyer
Fluid Pictures
75-77 Margaret St.
London
W1W 8SY
++44(0) 207 580 0829 


adrian.w...@fluid-pictures.com

www.fluid-pictures.com

 

Fluid Pictures Limited is registered in England and Wales.
Company number:5657815
VAT number: 872 6893 71

 


--
Softimage Mailing List.
To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with
"unsubscribe" in the subject, and reply to confirm.




-- 

Chris Marshall

Mint Motion Limited

029 20 37 27 57

07730 533 115

www.mintmotion.co.uk

www.dot3d.com

 

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Aw: RE: flattening blob particles

2016-04-14 Thread Leo Quensel 
I had to do this quite often before - I always ended up flattening the resulting mesh with a custom ICE deformer instead of the particles. Also worked quite well.
 

Gesendet: Donnerstag, 14. April 2016 um 12:32 Uhr
Von: "adrian wyer" 
An: softimage@listproc.autodesk.com
Betreff: RE: flattening blob particles




seeing as the condensation pass is separate, i just scaled the mesh in x so they only have the top 3rd poking through the bottle matte object

 

works well enough

 

a

 





From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Chris Marshall
Sent: 14 April 2016 11:03
To: softimage@listproc.autodesk.com
Subject: Re: flattening blob particles


 



These are not the Bibbles you're looking for.


Sorry Adrian, can't help you.


 


On 14 April 2016 at 10:48, adrian wyer  wrote:



doing some condensation on a bottle, have some nice particle distribution, and i am aligning to surface, then fscaling in local Y to 'flatten' the bibbles to the bottle surface

 

but as i'm rendering in Redshift, i thought i'd use empolygonizer to make the mesh...  only have V3... but can't seem to figure out how to make the mesh respect the local scale of the individual particles

 

is this possible, or can anyone suggest a workaround?

 

a

 

Adrian Wyer
Fluid Pictures
75-77 Margaret St.
London
W1W 8SY
++44(0) 207 580 0829 



adrian.w...@fluid-pictures.com


www.fluid-pictures.com


 


Fluid Pictures Limited is registered in England and Wales.
Company number:5657815
VAT number: 872 6893 71

 




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To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.





-- 





Chris Marshall



Mint Motion Limited



029 20 37 27 57



07730 533 115



www.mintmotion.co.uk



www.dot3d.com



 







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RE: flattening blob particles

2016-04-14 Thread adrian wyer 
seeing as the condensation pass is separate, i just scaled the mesh in x
so they only have the top 3rd poking through the bottle matte object

 

works well enough

 

a

 

  _  

From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Chris Marshall
Sent: 14 April 2016 11:03
To: softimage@listproc.autodesk.com
Subject: Re: flattening blob particles

 

These are not the Bibbles you're looking for.

Sorry Adrian, can't help you.

 

On 14 April 2016 at 10:48, adrian wyer 
wrote:

doing some condensation on a bottle, have some nice particle distribution,
and i am aligning to surface, then fscaling in local Y to 'flatten' the
bibbles to the bottle surface

 

but as i'm rendering in Redshift, i thought i'd use empolygonizer to make
the mesh...  only have V3... but can't seem to figure out how to make the
mesh respect the local scale of the individual particles

 

is this possible, or can anyone suggest a workaround?

 

a

 

Adrian Wyer
Fluid Pictures
75-77 Margaret St.
London
W1W 8SY 
++44(0) 207 580 0829   


adrian.w...@fluid-pictures.com

www.fluid-pictures.com 

 

Fluid Pictures Limited is registered in England and Wales.
Company number:5657815
VAT number: 872 6893 71

 


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Softimage Mailing List.
To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with
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-- 

Chris Marshall

Mint Motion Limited

029 20 37 27 57

07730 533 115

www.mintmotion.co.uk

www.dot3d.com

 

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Re: flattening blob particles

2016-04-14 Thread Chris Marshall 
These are not the Bibbles you're looking for.
Sorry Adrian, can't help you.


On 14 April 2016 at 10:48, adrian wyer 
wrote:

> doing some condensation on a bottle, have some nice particle distribution,
> and i am aligning to surface, then fscaling in local Y to 'flatten' the
> bibbles to the bottle surface
>
>
>
> but as i'm rendering in Redshift, i thought i'd use empolygonizer to make
> the mesh...  only have V3... but can't seem to figure out how to make the
> mesh respect the local scale of the individual particles
>
>
>
> is this possible, or can anyone suggest a workaround?
>
>
>
> a
>
>
>
> Adrian Wyer
> Fluid Pictures
> 75-77 Margaret St.
> London
> W1W 8SY
> ++44(0) 207 580 0829
>
>
> adrian.w...@fluid-pictures.com
>
> www.fluid-pictures.com
>
>
>
> Fluid Pictures Limited is registered in England and Wales.
> Company number:5657815
> VAT number: 872 6893 71
>
>
>
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> with "unsubscribe" in the subject, and reply to confirm.
>



-- 
Chris Marshall
Mint Motion Limited
029 20 37 27 57
07730 533 115
www.mintmotion.co.uk
www.dot3d.com
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flattening blob particles

2016-04-14 Thread adrian wyer 
doing some condensation on a bottle, have some nice particle distribution,
and i am aligning to surface, then fscaling in local Y to 'flatten' the
bibbles to the bottle surface

 

but as i'm rendering in Redshift, i thought i'd use empolygonizer to make
the mesh...  only have V3... but can't seem to figure out how to make the
mesh respect the local scale of the individual particles

 

is this possible, or can anyone suggest a workaround?

 

a

 

Adrian Wyer
Fluid Pictures
75-77 Margaret St.
London
W1W 8SY 
++44(0) 207 580 0829 


adrian.w...@fluid-pictures.com
 

www.fluid-pictures.com
  

 

Fluid Pictures Limited is registered in England and Wales.
Company number:5657815
VAT number: 872 6893 71

 

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