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Message from discussion ICE strand orientation trouble - again :/ now with images
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olivier jeannel  
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 More options May 16 2012, 8:59 am
From: olivier jeannel <olivier.jean...@noos.fr>
Date: Wed, 16 May 2012 14:59:14 +0200
Local: Wed, May 16 2012 8:59 am
Subject: Re: ICE strand orientation trouble - again :/ now with images

Ahem, I'd be curious too ^^

Le 16/05/2012 14:29, Morten Bartholdy a écrit :

> I would be very interested in that one Sandy :)

> Morten

> Den 16. maj 2012 kl. 14:25 skrev Sandy Sutherland
> <Sandy.Sutherl...@triggerfish.co.za>:

>     I can send you a scene I developed based on a technique I came
>     across somewhere to do awesome simulated strands, by creating
>     particle systems to loft the strands between and doing the sim on
>     the particles - this allow you to set orientation on the particles
>     and then the strands - I was using it to do grass and bushes being
>     flattened by a vehicle and I had the bushes/grass randomly
>     oriented as I was rendering a field using strand deforming.

>     S.

>     _____________________________
>     Sandy Sutherland
>     Technical Supervisor
>     sandy.sutherl...@triggerfish.co.za
>     _____________________________

>     ------------------------------------------------------------------------
>     *From:* softimage-boun...@listproc.autodesk.com
>     [softimage-boun...@listproc.autodesk.com] on behalf of Arda Sernaz
>     [a...@lhvfx.com]
>     *Sent:* 16 May 2012 14:16
>     *To:* softim...@listproc.autodesk.com
>     *Subject:* Re: ICE strand orientation trouble - again :/ now with
>     images
>     Yes i tried a feather instance on strands but i couldn't set the
>     orientation...

>     On 5/16/2012 1:37 PM, Christian Keller wrote:

>         try the loft ... checkbox in your create strands compound.
>         and if you use the sitoa strand compound, there´s also one for
>         the
>         rotations.
>         not sitting in front of xsi now, but sure you´ll figure it out
>         within
>         one minute ;)

>         Am 16.05.2012 11:36, schrieb Stefano Jannuzzo:

>             You posted an Arnold render. You mean that you can't
>             achieve the same result with mr, or that the Arnold result
>             itself is wrong?
>             Stefano

>             On Tue, May 15, 2012 at 1:49 PM, Morten Bartholdy <
>             x...@colorshopvfx.dk <mailto:x...@colorshopvfx.dk> > wrote:

>                 Here are a couple of images showing what I am doing:

>                 http://dl.dropbox.com/u/763668/ICE/Strands_InstanceGeo_Rotation_01.jpg

>                 http://dl.dropbox.com/u/763668/ICE/Strands_InstanceGeo_Rotation_ICE_T...

>                 I just need to randomize of the geometrys y-rotation,
>                 and according to the docs and pointers given here
>                 earlier this should do the trick, but no go. Is there
>                 a magic step I might have missed to get it working?

>                 /Morten

>                 Den 15. maj 2012 kl. 11:14 skrev Morten Bartholdy <
>                 x...@colorshopvfx.dk <mailto:x...@colorshopvfx.dk> >:

>                     I have a nice setup which creates lovely grass
>                     deforming geometry instances on strands so I can
>                     have turbulent wind moving the strands around. I
>                     am using Emit Strands for this, but I seem to be
>                     unable to randomize the instance y-orientation
>                     using a Randomize Rotation by Cone - they are
>                     unaffected by this. If I create a different setup
>                     using Emit from Geometry and Create Strands on
>                     that, I can control the y-rotation, but then the
>                     instances are upside down, and my non simulated
>                     turbulence does not work.

>                     How can I get to control instance y-rotation when
>                     using Emit Strands?

>                     MOrten

>                    --
>                    christian keller
>                    visual effects|direction
>                    m +49 179 69 36 248
>                    f +49 40 386 835 33
>                    chris3...@me.com  <mailto:chris3...@me.com>

>               --
>               Ardahan SERNAZ
>               VFX TD
>               www.lhvfx.com  <http://www.lhvfx.com>


 
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