Re: Substance designer for Softimage?

[Steven Caron]

They have built nodes for outputting to the Arnold standard shader.

On Tue, Mar 14, 2017 at 9:30 PM, Pierre Schiller <
activemotionpictu...@gmail.com> wrote:

> Hi. Has anyone tried to tie up substance's glossiness/roughness either for
> arnold or redshift materials?
> I'm looking for a way to setup the shader so that it will feed on the
> substance's maps for a mesh.
>
> Is anyone doing a simmilar approach?
>
> Thanks.
>
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> with "unsubscribe" in the subject, and reply to confirm.
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Substance designer for Softimage?

[Pierre Schiller]

Hi. Has anyone tried to tie up substance's glossiness/roughness either for
arnold or redshift materials?
I'm looking for a way to setup the shader so that it will feed on the
substance's maps for a mesh.

Is anyone doing a simmilar approach?

Thanks.
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Re: houdini 16 nav

[Eugene Flormata]

Ah nice! thanks!
the journey begins!


On Tue, Mar 14, 2017 at 4:25 PM, Ben Paschke  wrote:

> Almost! Press space-z with your mouse over an object.
> That rayscast point will become center of the view and the center of the
> orbit.
>
>
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Re: houdini 16 nav

[Ben Paschke]

Almost! Press space-z with your mouse over an object.
That rayscast point will become center of the view and the center of the orbit.

- Original Message -
> From: "Eugene Flormata" 
> To: softimage@listproc.autodesk.com
> Sent: Wednesday, 15 March, 2017 9:51:03 AM
> Subject: houdini 16 nav
> 
> 
> 
> forgot the email for the houdini list, and not sure of the keywords I
> was looking for
> 
> to rotate a camera around where the mouse cursor is on the closest
> raycasted object
> (like zbrush or maya with the right rotation setting)
> 
> is this a thing in houdini?
> --
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> subject, and reply to confirm.
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houdini 16 nav

[Eugene Flormata]

forgot the email for the houdini list, and not sure of the keywords I was
looking for

to rotate a camera around where the mouse cursor is on the closest
raycasted object
(like zbrush or maya with the right rotation setting)

is this a thing in houdini?
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Re: Maya Noise Jitter Question?

[Chris Johnson]

hmm I'll have to try that.

If you haven't used max before it's pretty impressive the scope of work you
can do in that package with just a noise shader.

On Tue, Mar 14, 2017 at 1:02 PM, Tom Kleinenberg  wrote:

> Not sure if this is what you want but TextureDeformer (Maya 2016 its in
> Rigging, not sure in 2017). Assigning a Noise/Checkerboard as the texture
> and then animating the Offset in the place2DTexture (setting pre- and
> post-infinity of course) works in simple form.
>
> On 14 March 2017 at 14:25, Chris Johnson  wrote:
>
>> Sorry for the Maya question on here.
>>
>> I'm trying to do a simple jitter on a piece of geometry to add some
>> animated noise. Can Maya not do this out of the box? This is the simplest
>> of functions in Max and XSI. I'm finding a bunch of scripts but none
>> supported for 2017!?
>>
>> Any direction would helpI can always fake it but this is a simple ask
>> for any 3D ap.
>>
>> --
>>
>> Chris Johnson | www.someonescousin.com | 416.473.1624
>>
>>  
>> 
>> 
>>
>>
>>
>> --
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>> with "unsubscribe" in the subject, and reply to confirm.
>>
>
>
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> with "unsubscribe" in the subject, and reply to confirm.
>



-- 

Chris Johnson | www.someonescousin.com | 416.473.1624

 


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Re: houdini question (and where to ask)

[Olivier Jeannel]

Back to the Get MaximumInSet request, I found this (I haven't tested) :
http://gifyu.com/image/SpJl


2017-03-07 13:20 GMT+01:00 Fabricio Chamon :

> thanks for all the insights guys, much appreciated!
>
> 2017-03-07 11:41 GMT+01:00 Andy Nicholas :
>
>> That's good to know, thanks :)
>>
>>
>> On 07/03/2017 10:06, Christopher Crouzet wrote:
>>
>> I naively compared the AttribPromote with an AttribWrangle in detail
>> mode, and the results were much (much) faster with the AttribPromote, so I
>> assume it is multi-threaded and would be hard to beat with any sort of
>> wrangle trickery.
>>
>> I'm still stuck with H13 so I didn't know about the numbers mode, that's
>> neat!
>>
>>
>> On 7 March 2017 at 16:43, Andy Nicholas  wrote:
>>
>>> Andy, the O(N) thing got me thinking and realized that instead of
>>> running the attrib wrangle in detail mode, which uses only a single thread,
>>> it'd be possible to generate say 4 points and, in a point wrangle, let each
>>> of these points process 1/4th of the array, thus effectively running the
>>> same logic on 4 threads! Another attrib wrangle is then needed in post to
>>> sum up the result from each point. Well, in all honesty I don't think
>>> there'll ever be a use case for it :)
>>>
>>>
>>> Yes absolutely! Definitely a good approach if you're after performance.
>>> It'd be interesting to do a comparison between that and an Attribute
>>> Promote SOP to see which is faster. I suspect (i.e. hope) the Attribute
>>> Promote SOP is multithreaded, so probably no major advantage.
>>>
>>> BTW, you don't even need to generate the 4 points as you've got the Run
>>> Over "Numbers" mode which will do the same. You can save the result into a
>>> detail array attribute and analyse it in a Detail Wrangle. Just takes a bit
>>> more management to set it up.
>>>
>>>
>>>
>>>
>>> On 07/03/2017 01:35, Christopher Crouzet wrote:
>>>
>>> Wow, I shouldn't have wrote that late last night, I completely mixed
>>> things up in my previous post, sorry!
>>>
>>> I'll try again! With a ramp, you have the source (input) values on the X
>>> axis, and the target (output) values on the Y axis. If either your source
>>> or target values aren't in the range [0, 1], you can remap them using a
>>> simple float parameter (to use as a simple multiplier if your desired lower
>>> bound is 0), or a float2 parameter to precisely control the desired range.
>>>
>>> It seems to be a standard practice in Houdini since they use it for some
>>> built-in nodes, such as the Pyro SHOP.
>>>
>>> Andy, the O(N) thing got me thinking and realized that instead of
>>> running the attrib wrangle in detail mode, which uses only a single thread,
>>> it'd be possible to generate say 4 points and, in a point wrangle, let each
>>> of these points process 1/4th of the array, thus effectively running the
>>> same logic on 4 threads! Another attrib wrangle is then needed in post to
>>> sum up the result from each point. Well, in all honesty I don't think
>>> there'll ever be a use case for it :)
>>>
>>>
>>> On 7 March 2017 at 01:14, Olivier Jeannel 
>>> wrote:
>>>
 Ok we agree.


 On Monday, March 6, 2017, Jonathan Moore 
 wrote:

> As far as I understood it Oliver, the spline version of the Houdini
> Ramp only operates in the zero to one range. You re-fit the values
> pre/post/ or both to suite your needs.
>
>
>
> I get that this doesn’t match the UX of FCurves in XSI, but I’ve
> always understood Ramp’s in Houdini to be more of a lower level discrete
> element in visual programing terms.
>
>
>
> *From:* softimage-boun...@listproc.autodesk.com [mailto:
> softimage-boun...@listproc.autodesk.com] *On Behalf Of *Olivier
> Jeannel
> *Sent:* 06 March 2017 17:31
> *To:* Official Softimage Users Mailing List.
> https://groups.google.com/forum/#!forum/xsi_list <
> softimage@listproc.autodesk.com>
> *Subject:* Re: houdini question (and where to ask)
>
>
>
> Not sure I get it Christopher (not in front of H)
>
> Does your trick actualy change the graph visualy ?
>
> In short, can I see the negative x & y values ?
>
> On Monday, March 6, 2017, Christopher Crouzet <
> christopher.crou...@gmail.com> wrote:
>
> Indeed, which is why I mentioned the “detail” mode which brings you
> back to O(N). Not saying that one approach is better than the other 
> though,
> only that it is possible.
>
>
>
> On 7 March 2017 at 00:12, Andy Nicholas  wrote:
>
> Yep it is possible, but you wouldn't want to do it because each
> calculation of the maximum value would be running across N points to
> calculate that. That'd make it an O(N^2) operation, albeit spread over
> multiple threads.
>
> It might seem like a pain to 

Re: Emit particles frm surfaces facing a particular direction?

[Orlando Esponda]

Yes, please Paul. I miss your tutorials too. Would be awesome to see some
Houdini tutorials from you. There are lots but most are maybe too advanced,
or maybe there are some basic but the guys behind them don't have your
teaching skills.



On Tue, Mar 14, 2017 at 10:59 AM, Christopher Crouzet <
christopher.crou...@gmail.com> wrote:

> Are you saying that you're shy of sending your Houdini questions over to
> the list? Bring them on, I'm sure the few Houdini users around will be
> happy to help, and it'll also serve others doing the transition!
>
>
> On 14 March 2017 at 23:36,  wrote:
>
>> I am doing Houdini a bit, but spend a lot more time with Softimage to be
>> honest. I don't have anyone to help me with Houdini and find it hard going
>> when I get stuck.
>>
>>
>>
>> -Original Message-
>> From: Morten Bartholdy
>> Sent: Tuesday, March 14, 2017 4:00 PM
>> To: p...@bustykelp.com ; Official Softimage Users Mailing List.
>> https://groups.google.com/forum/#!forum/xsi_list
>> Subject: Re: Emit particles frm surfaces facing a particular direction?
>>
>> Great explanation Paul. I was missing the emit location part, which I
>> guess
>> will explain why I did not see the desired effect :)
>>
>> I miss your tutorials, but I guess you are diving into Houdini. Maybe you
>> can make that more accessible to people like me - you have a great talent
>> for teaching.
>>
>> Thanks
>> Morten
>>
>>
>>
>> > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
>> >
>> >
>> > https://vimeo.com/208318679  watch this
>> >
>> >
>> > -Original Message-
>> > From: Morten Bartholdy
>> > Sent: Tuesday, March 14, 2017 2:47 PM
>> > To: Official Softimage Users Mailing
>> > List.https://groups.google.com/forum/#!forum/xsi_list
>> > Subject: Re: Emit particles frm surfaces facing a particular direction?
>> >
>> > Oh goodie. I thought I had almost got it right, and I saw a reaction,
>> but
>> > clearly not the desired one :)
>> >
>> >
>> > MB
>> >
>> >
>> >
>> >
>> > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
>> > >
>> > >
>> > > I'm making you a video if you can hold out a moment and I'll send the
>> > > link
>> > >
>> > >
>> > >
>> > > -Original Message-
>> > > From: Morten Bartholdy
>> > > Sent: Tuesday, March 14, 2017 2:13 PM
>> > > To: Official Softimage Users Mailing
>> > > List.https://groups.google.com/forum/#!forum/xsi_list
>> > > Subject: Re: Emit particles frm surfaces facing a particular
>> direction?
>> > >
>> > > Also seems replies with attachments don't get through...
>> > >
>> > > MB
>> > >
>> > >
>> > >
>> > >
>> > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
>> > > > :
>> > > >
>> > > >
>> > > > It seems I am doing something wrong - I am not getting the right
>> > > > values.
>> > > >
>> > > > MB
>> > > >
>> > > >
>> > > >
>> > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
>> > > > >
>> > > > >
>> > > > > The easiest thing is to emit over the whole object then do what
>> you
>> > > > > did
>> > > > > and
>> > > > > plug the output of your 'Less than' into a Delete Particle node.
>> > > > >
>> > > > > -Original Message-
>> > > > > From: Morten Bartholdy
>> > > > > Sent: Tuesday, March 14, 2017 11:19 AM
>> > > > > To: Official Softimage Users Mailing List.
>> > > > > https://groups.google.com/forum/#!forum/xsi_list ;
>> > > > > p...@bustykelp.com
>> > > > > Subject: Re: Emit particles frm surfaces facing a particular
>> > > > > direction?
>> > > > >
>> > > > > Thanks Paul. I know stuf like this is trivial to you, but it is
>> not
>> > > > > so
>> > > > > much
>> > > > > the method that escapes me as the lack of a tool that does this.
>> > > > >
>> > > > > I can figure out how to get a vector from a nulls position and Get
>> > > > > Point
>> > > > > Normals from my geometry, I can then get the angle between them
>> and
>> > > > > put
>> > > > > than
>> > > > > into a Less than or equal to node, but how to transform a
>> threshold
>> > > > > value
>> > > > > into either weightmap values, creating a sample set to emit from
>> or
>> > > > > filtering an emission, I don't know.
>> > > > >
>> > > > > I was sort of hoping there would be a node or compound I had
>> > > > > overlooked
>> > > > > which provided something I could use :)
>> > > > >
>> > > > > cheers
>> > > > > Morten
>> > > > >
>> > > > >
>> > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
>> > > > > >
>> > > > > >
>> > > > > > You can either
>> > > > > >
>> > > > > > Emit from the whole and delete the ones that aren't pointing in
>> > > > > > the
>> > > > > > right
>> > > > > > direction, (based on comparing the normal angle to your
>> preferred
>> > > > > > vector)
>> > > > > >
>> > > > > > Or create a weightmap on the object and use ICE to set the
>> values
>> > > > > > based
>> > > > > > upon
>> > > > > > the normal angle and use the weightmap in the Emit node. (This
>> > > > > > wont
>> > > > > > work
>> > > > > 

RE: Emit particles frm surfaces facing a particular direction?

[Jonathan Moore]

OdForce and the Houdini Discord server are great too.

 

From: softimage-boun...@listproc.autodesk.com 
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Olivier Jeannel
Sent: 14 March 2017 16:59
To: p...@bustykelp.com; Official Softimage Users Mailing List. 
https://groups.google.com/forum/#!forum/xsi_list 

Subject: Re: Emit particles frm surfaces facing a particular direction?

 

Paul, ask here or on the sidefx list, you won't be stuck forever with the level 
you have.

 

2017-03-14 17:36 GMT+01:00  >:

I am doing Houdini a bit, but spend a lot more time with Softimage to be
honest. I don't have anyone to help me with Houdini and find it hard going
when I get stuck.



-Original Message-
From: Morten Bartholdy
Sent: Tuesday, March 14, 2017 4:00 PM
To: p...@bustykelp.com   ; Official Softimage Users 
Mailing List.
https://groups.google.com/forum/#!forum/xsi_list

Subject: Re: Emit particles frm surfaces facing a particular direction?

Great explanation Paul. I was missing the emit location part, which I guess
will explain why I did not see the desired effect :)

I miss your tutorials, but I guess you are diving into Houdini. Maybe you
can make that more accessible to people like me - you have a great talent
for teaching.

Thanks
Morten



> Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com 
>  :
>
>
> https://vimeo.com/208318679  watch this
>
>
> -Original Message-
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 2:47 PM
> To: Official Softimage Users Mailing
> List.https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Oh goodie. I thought I had almost got it right, and I saw a reaction, but
> clearly not the desired one :)
>
>
> MB
>
>
>
>
> > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com 
> >  :
> >
> >
> > I'm making you a video if you can hold out a moment and I'll send the
> > link
> >
> >
> >
> > -Original Message-
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:13 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Also seems replies with attachments don't get through...
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > >  >:
> > >
> > >
> > > It seems I am doing something wrong - I am not getting the right
> > > values.
> > >
> > > MB
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com 
> > > >  :
> > > >
> > > >
> > > > The easiest thing is to emit over the whole object then do what you
> > > > did
> > > > and
> > > > plug the output of your 'Less than' into a Delete Particle node.
> > > >
> > > > -Original Message-
> > > > From: Morten Bartholdy
> > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > To: Official Softimage Users Mailing List.
> > > > https://groups.google.com/forum/#!forum/xsi_list ;
> > > > p...@bustykelp.com  
> > > > Subject: Re: Emit particles frm surfaces facing a particular
> > > > direction?
> > > >
> > > > Thanks Paul. I know stuf like this is trivial to you, but it is not
> > > > so
> > > > much
> > > > the method that escapes me as the lack of a tool that does this.
> > > >
> > > > I can figure out how to get a vector from a nulls position and Get
> > > > Point
> > > > Normals from my geometry, I can then get the angle between them and
> > > > put
> > > > than
> > > > into a Less than or equal to node, but how to transform a threshold
> > > > value
> > > > into either weightmap values, creating a sample set to emit from or
> > > > filtering an emission, I don't know.
> > > >
> > > > I was sort of hoping there would be a node or compound I had
> > > > overlooked
> > > > which provided something I could use :)
> > > >
> > > > cheers
> > > > Morten
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com 
> > > > >  :
> > > > >
> > > > >
> > > > > You can either
> > > > >
> > > > > Emit from the whole and delete the ones that aren't pointing in
> > > > > the
> > > > > right
> > > > > direction, (based on comparing the normal angle to your preferred
> > > > > vector)
> > > > >
> > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > based
> > > > > upon
> > > > > the normal angle and use the weightmap in the Emit node. (This
> > > > > wont
> > > > > work
> > > > > on
> > > > > low poly meshes for obvious reasons)
> > > > >
> > > > > Or make a duplicate of the surface, and use ICE to delete Polys
> > > > > that
> > > > > aren't
> > > > > pointing in the right 

Re: Emit particles frm surfaces facing a particular direction?

[Tom Kleinenberg]

I watched the vid even though I'm in Maya nowadays. It's always fun to see
how you break things down Paul. If I remember right, your original ICE vids
were sort of you teaching yourself stuff (the ray-tracer etc.), it'd be fun
to see you going through that process in Houdini. Its a very relatable form
of tutorial. I also have a tough time getting to grips with Houdini - it's
a bit daunting in its presentation. Good fun seeing you have your Eureka
moments though :)

On 14 March 2017 at 16:36,  wrote:

> I am doing Houdini a bit, but spend a lot more time with Softimage to be
> honest. I don't have anyone to help me with Houdini and find it hard going
> when I get stuck.
>
>
>
> -Original Message-
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 4:00 PM
> To: p...@bustykelp.com ; Official Softimage Users Mailing List.
> https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Great explanation Paul. I was missing the emit location part, which I guess
> will explain why I did not see the desired effect :)
>
> I miss your tutorials, but I guess you are diving into Houdini. Maybe you
> can make that more accessible to people like me - you have a great talent
> for teaching.
>
> Thanks
> Morten
>
>
>
> > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
> >
> >
> > https://vimeo.com/208318679  watch this
> >
> >
> > -Original Message-
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:47 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Oh goodie. I thought I had almost got it right, and I saw a reaction, but
> > clearly not the desired one :)
> >
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> > >
> > >
> > > I'm making you a video if you can hold out a moment and I'll send the
> > > link
> > >
> > >
> > >
> > > -Original Message-
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 2:13 PM
> > > To: Official Softimage Users Mailing
> > > List.https://groups.google.com/forum/#!forum/xsi_list
> > > Subject: Re: Emit particles frm surfaces facing a particular direction?
> > >
> > > Also seems replies with attachments don't get through...
> > >
> > > MB
> > >
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > > :
> > > >
> > > >
> > > > It seems I am doing something wrong - I am not getting the right
> > > > values.
> > > >
> > > > MB
> > > >
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > The easiest thing is to emit over the whole object then do what you
> > > > > did
> > > > > and
> > > > > plug the output of your 'Less than' into a Delete Particle node.
> > > > >
> > > > > -Original Message-
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > > To: Official Softimage Users Mailing List.
> > > > > https://groups.google.com/forum/#!forum/xsi_list ;
> > > > > p...@bustykelp.com
> > > > > Subject: Re: Emit particles frm surfaces facing a particular
> > > > > direction?
> > > > >
> > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not
> > > > > so
> > > > > much
> > > > > the method that escapes me as the lack of a tool that does this.
> > > > >
> > > > > I can figure out how to get a vector from a nulls position and Get
> > > > > Point
> > > > > Normals from my geometry, I can then get the angle between them and
> > > > > put
> > > > > than
> > > > > into a Less than or equal to node, but how to transform a threshold
> > > > > value
> > > > > into either weightmap values, creating a sample set to emit from or
> > > > > filtering an emission, I don't know.
> > > > >
> > > > > I was sort of hoping there would be a node or compound I had
> > > > > overlooked
> > > > > which provided something I could use :)
> > > > >
> > > > > cheers
> > > > > Morten
> > > > >
> > > > >
> > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > > >
> > > > > >
> > > > > > You can either
> > > > > >
> > > > > > Emit from the whole and delete the ones that aren't pointing in
> > > > > > the
> > > > > > right
> > > > > > direction, (based on comparing the normal angle to your preferred
> > > > > > vector)
> > > > > >
> > > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > > based
> > > > > > upon
> > > > > > the normal angle and use the weightmap in the Emit node. (This
> > > > > > wont
> > > > > > work
> > > > > > on
> > > > > > low poly meshes for obvious reasons)
> > > > > >
> > > > > > Or make a duplicate of the surface, and use ICE to delete Polys
> > > > > > that
> > > > > > aren't
> > > > > > pointing in the right direction, then emit from the resulting
> > 

Re: Maya Noise Jitter Question?

[Tom Kleinenberg]

Not sure if this is what you want but TextureDeformer (Maya 2016 its in
Rigging, not sure in 2017). Assigning a Noise/Checkerboard as the texture
and then animating the Offset in the place2DTexture (setting pre- and
post-infinity of course) works in simple form.

On 14 March 2017 at 14:25, Chris Johnson  wrote:

> Sorry for the Maya question on here.
>
> I'm trying to do a simple jitter on a piece of geometry to add some
> animated noise. Can Maya not do this out of the box? This is the simplest
> of functions in Max and XSI. I'm finding a bunch of scripts but none
> supported for 2017!?
>
> Any direction would helpI can always fake it but this is a simple ask
> for any 3D ap.
>
> --
>
> Chris Johnson | www.someonescousin.com | 416.473.1624
>
>  
> 
> 
>
>
>
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> with "unsubscribe" in the subject, and reply to confirm.
>
--
Softimage Mailing List.
To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
"unsubscribe" in the subject, and reply to confirm.

Re: Emit particles frm surfaces facing a particular direction?

[Christopher Crouzet]

Are you saying that you're shy of sending your Houdini questions over to
the list? Bring them on, I'm sure the few Houdini users around will be
happy to help, and it'll also serve others doing the transition!


On 14 March 2017 at 23:36,  wrote:

> I am doing Houdini a bit, but spend a lot more time with Softimage to be
> honest. I don't have anyone to help me with Houdini and find it hard going
> when I get stuck.
>
>
>
> -Original Message-
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 4:00 PM
> To: p...@bustykelp.com ; Official Softimage Users Mailing List.
> https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Great explanation Paul. I was missing the emit location part, which I guess
> will explain why I did not see the desired effect :)
>
> I miss your tutorials, but I guess you are diving into Houdini. Maybe you
> can make that more accessible to people like me - you have a great talent
> for teaching.
>
> Thanks
> Morten
>
>
>
> > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
> >
> >
> > https://vimeo.com/208318679  watch this
> >
> >
> > -Original Message-
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:47 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Oh goodie. I thought I had almost got it right, and I saw a reaction, but
> > clearly not the desired one :)
> >
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> > >
> > >
> > > I'm making you a video if you can hold out a moment and I'll send the
> > > link
> > >
> > >
> > >
> > > -Original Message-
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 2:13 PM
> > > To: Official Softimage Users Mailing
> > > List.https://groups.google.com/forum/#!forum/xsi_list
> > > Subject: Re: Emit particles frm surfaces facing a particular direction?
> > >
> > > Also seems replies with attachments don't get through...
> > >
> > > MB
> > >
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > > :
> > > >
> > > >
> > > > It seems I am doing something wrong - I am not getting the right
> > > > values.
> > > >
> > > > MB
> > > >
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > The easiest thing is to emit over the whole object then do what you
> > > > > did
> > > > > and
> > > > > plug the output of your 'Less than' into a Delete Particle node.
> > > > >
> > > > > -Original Message-
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > > To: Official Softimage Users Mailing List.
> > > > > https://groups.google.com/forum/#!forum/xsi_list ;
> > > > > p...@bustykelp.com
> > > > > Subject: Re: Emit particles frm surfaces facing a particular
> > > > > direction?
> > > > >
> > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not
> > > > > so
> > > > > much
> > > > > the method that escapes me as the lack of a tool that does this.
> > > > >
> > > > > I can figure out how to get a vector from a nulls position and Get
> > > > > Point
> > > > > Normals from my geometry, I can then get the angle between them and
> > > > > put
> > > > > than
> > > > > into a Less than or equal to node, but how to transform a threshold
> > > > > value
> > > > > into either weightmap values, creating a sample set to emit from or
> > > > > filtering an emission, I don't know.
> > > > >
> > > > > I was sort of hoping there would be a node or compound I had
> > > > > overlooked
> > > > > which provided something I could use :)
> > > > >
> > > > > cheers
> > > > > Morten
> > > > >
> > > > >
> > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > > >
> > > > > >
> > > > > > You can either
> > > > > >
> > > > > > Emit from the whole and delete the ones that aren't pointing in
> > > > > > the
> > > > > > right
> > > > > > direction, (based on comparing the normal angle to your preferred
> > > > > > vector)
> > > > > >
> > > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > > based
> > > > > > upon
> > > > > > the normal angle and use the weightmap in the Emit node. (This
> > > > > > wont
> > > > > > work
> > > > > > on
> > > > > > low poly meshes for obvious reasons)
> > > > > >
> > > > > > Or make a duplicate of the surface, and use ICE to delete Polys
> > > > > > that
> > > > > > aren't
> > > > > > pointing in the right direction, then emit from the resulting
> > > > > > object.
> > > > > >
> > > > > >
> > > > > > Number 1 is the easiest to set up.
> > > > > >
> > > > > > Paul
> > > > > >
> > > > > >
> > > > > > -Original Message-
> > > > > > From: Morten Bartholdy
> > > > > > Sent: Tuesday, March 14, 2017 

Re: Emit particles frm surfaces facing a particular direction?

[Olivier Jeannel]

Paul, ask here or on the sidefx list, you won't be stuck forever with the
level you have.

2017-03-14 17:36 GMT+01:00 :

> I am doing Houdini a bit, but spend a lot more time with Softimage to be
> honest. I don't have anyone to help me with Houdini and find it hard going
> when I get stuck.
>
>
>
> -Original Message-
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 4:00 PM
> To: p...@bustykelp.com ; Official Softimage Users Mailing List.
> https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Great explanation Paul. I was missing the emit location part, which I guess
> will explain why I did not see the desired effect :)
>
> I miss your tutorials, but I guess you are diving into Houdini. Maybe you
> can make that more accessible to people like me - you have a great talent
> for teaching.
>
> Thanks
> Morten
>
>
>
> > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
> >
> >
> > https://vimeo.com/208318679  watch this
> >
> >
> > -Original Message-
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:47 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Oh goodie. I thought I had almost got it right, and I saw a reaction, but
> > clearly not the desired one :)
> >
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> > >
> > >
> > > I'm making you a video if you can hold out a moment and I'll send the
> > > link
> > >
> > >
> > >
> > > -Original Message-
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 2:13 PM
> > > To: Official Softimage Users Mailing
> > > List.https://groups.google.com/forum/#!forum/xsi_list
> > > Subject: Re: Emit particles frm surfaces facing a particular direction?
> > >
> > > Also seems replies with attachments don't get through...
> > >
> > > MB
> > >
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > > :
> > > >
> > > >
> > > > It seems I am doing something wrong - I am not getting the right
> > > > values.
> > > >
> > > > MB
> > > >
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > The easiest thing is to emit over the whole object then do what you
> > > > > did
> > > > > and
> > > > > plug the output of your 'Less than' into a Delete Particle node.
> > > > >
> > > > > -Original Message-
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > > To: Official Softimage Users Mailing List.
> > > > > https://groups.google.com/forum/#!forum/xsi_list ;
> > > > > p...@bustykelp.com
> > > > > Subject: Re: Emit particles frm surfaces facing a particular
> > > > > direction?
> > > > >
> > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not
> > > > > so
> > > > > much
> > > > > the method that escapes me as the lack of a tool that does this.
> > > > >
> > > > > I can figure out how to get a vector from a nulls position and Get
> > > > > Point
> > > > > Normals from my geometry, I can then get the angle between them and
> > > > > put
> > > > > than
> > > > > into a Less than or equal to node, but how to transform a threshold
> > > > > value
> > > > > into either weightmap values, creating a sample set to emit from or
> > > > > filtering an emission, I don't know.
> > > > >
> > > > > I was sort of hoping there would be a node or compound I had
> > > > > overlooked
> > > > > which provided something I could use :)
> > > > >
> > > > > cheers
> > > > > Morten
> > > > >
> > > > >
> > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > > >
> > > > > >
> > > > > > You can either
> > > > > >
> > > > > > Emit from the whole and delete the ones that aren't pointing in
> > > > > > the
> > > > > > right
> > > > > > direction, (based on comparing the normal angle to your preferred
> > > > > > vector)
> > > > > >
> > > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > > based
> > > > > > upon
> > > > > > the normal angle and use the weightmap in the Emit node. (This
> > > > > > wont
> > > > > > work
> > > > > > on
> > > > > > low poly meshes for obvious reasons)
> > > > > >
> > > > > > Or make a duplicate of the surface, and use ICE to delete Polys
> > > > > > that
> > > > > > aren't
> > > > > > pointing in the right direction, then emit from the resulting
> > > > > > object.
> > > > > >
> > > > > >
> > > > > > Number 1 is the easiest to set up.
> > > > > >
> > > > > > Paul
> > > > > >
> > > > > >
> > > > > > -Original Message-
> > > > > > From: Morten Bartholdy
> > > > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > > > To: Userlist, Softimage
> > > > > > Subject: Emit particles frm surfaces facing a particular
> > > > > > 

Re: Emit particles frm surfaces facing a particular direction?

[Sandy Sutherland]

Paul - are you subscribed to the Houdini list - it can be really helpful.

Send an email with subscribe in body to
sidefx-houdini-list-requ...@sidefx.com - I think it is.

S.





On Tue, Mar 14, 2017 at 4:36 PM,  wrote:

> I am doing Houdini a bit, but spend a lot more time with Softimage to be
> honest. I don't have anyone to help me with Houdini and find it hard going
> when I get stuck.
>
>
>
> -Original Message-
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 4:00 PM
> To: p...@bustykelp.com ; Official Softimage Users Mailing List.
> https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Great explanation Paul. I was missing the emit location part, which I guess
> will explain why I did not see the desired effect :)
>
> I miss your tutorials, but I guess you are diving into Houdini. Maybe you
> can make that more accessible to people like me - you have a great talent
> for teaching.
>
> Thanks
> Morten
>
>
>
> > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
> >
> >
> > https://vimeo.com/208318679  watch this
> >
> >
> > -Original Message-
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:47 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Oh goodie. I thought I had almost got it right, and I saw a reaction, but
> > clearly not the desired one :)
> >
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> > >
> > >
> > > I'm making you a video if you can hold out a moment and I'll send the
> > > link
> > >
> > >
> > >
> > > -Original Message-
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 2:13 PM
> > > To: Official Softimage Users Mailing
> > > List.https://groups.google.com/forum/#!forum/xsi_list
> > > Subject: Re: Emit particles frm surfaces facing a particular direction?
> > >
> > > Also seems replies with attachments don't get through...
> > >
> > > MB
> > >
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > > :
> > > >
> > > >
> > > > It seems I am doing something wrong - I am not getting the right
> > > > values.
> > > >
> > > > MB
> > > >
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > The easiest thing is to emit over the whole object then do what you
> > > > > did
> > > > > and
> > > > > plug the output of your 'Less than' into a Delete Particle node.
> > > > >
> > > > > -Original Message-
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > > To: Official Softimage Users Mailing List.
> > > > > https://groups.google.com/forum/#!forum/xsi_list ;
> > > > > p...@bustykelp.com
> > > > > Subject: Re: Emit particles frm surfaces facing a particular
> > > > > direction?
> > > > >
> > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not
> > > > > so
> > > > > much
> > > > > the method that escapes me as the lack of a tool that does this.
> > > > >
> > > > > I can figure out how to get a vector from a nulls position and Get
> > > > > Point
> > > > > Normals from my geometry, I can then get the angle between them and
> > > > > put
> > > > > than
> > > > > into a Less than or equal to node, but how to transform a threshold
> > > > > value
> > > > > into either weightmap values, creating a sample set to emit from or
> > > > > filtering an emission, I don't know.
> > > > >
> > > > > I was sort of hoping there would be a node or compound I had
> > > > > overlooked
> > > > > which provided something I could use :)
> > > > >
> > > > > cheers
> > > > > Morten
> > > > >
> > > > >
> > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > > >
> > > > > >
> > > > > > You can either
> > > > > >
> > > > > > Emit from the whole and delete the ones that aren't pointing in
> > > > > > the
> > > > > > right
> > > > > > direction, (based on comparing the normal angle to your preferred
> > > > > > vector)
> > > > > >
> > > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > > based
> > > > > > upon
> > > > > > the normal angle and use the weightmap in the Emit node. (This
> > > > > > wont
> > > > > > work
> > > > > > on
> > > > > > low poly meshes for obvious reasons)
> > > > > >
> > > > > > Or make a duplicate of the surface, and use ICE to delete Polys
> > > > > > that
> > > > > > aren't
> > > > > > pointing in the right direction, then emit from the resulting
> > > > > > object.
> > > > > >
> > > > > >
> > > > > > Number 1 is the easiest to set up.
> > > > > >
> > > > > > Paul
> > > > > >
> > > > > >
> > > > > > -Original Message-
> > > > > > From: Morten Bartholdy
> > > > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > > > To: 

Re: Emit particles frm surfaces facing a particular direction?

[paul]

I am doing Houdini a bit, but spend a lot more time with Softimage to be 
honest. I don't have anyone to help me with Houdini and find it hard going 
when I get stuck.



-Original Message- 
From: Morten Bartholdy
Sent: Tuesday, March 14, 2017 4:00 PM
To: p...@bustykelp.com ; Official Softimage Users Mailing List. 
https://groups.google.com/forum/#!forum/xsi_list
Subject: Re: Emit particles frm surfaces facing a particular direction?

Great explanation Paul. I was missing the emit location part, which I guess 
will explain why I did not see the desired effect :)

I miss your tutorials, but I guess you are diving into Houdini. Maybe you 
can make that more accessible to people like me - you have a great talent 
for teaching.

Thanks
Morten



> Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
>
>
> https://vimeo.com/208318679  watch this
>
>
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 2:47 PM
> To: Official Softimage Users Mailing
> List.https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Oh goodie. I thought I had almost got it right, and I saw a reaction, but
> clearly not the desired one :)
>
>
> MB
>
>
>
>
> > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> >
> >
> > I'm making you a video if you can hold out a moment and I'll send the 
> > link
> >
> >
> >
> > -Original Message- 
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:13 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Also seems replies with attachments don't get through...
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > :
> > >
> > >
> > > It seems I am doing something wrong - I am not getting the right 
> > > values.
> > >
> > > MB
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > >
> > > >
> > > > The easiest thing is to emit over the whole object then do what you
> > > > did
> > > > and
> > > > plug the output of your 'Less than' into a Delete Particle node.
> > > >
> > > > -Original Message- 
> > > > From: Morten Bartholdy
> > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > To: Official Softimage Users Mailing List.
> > > > https://groups.google.com/forum/#!forum/xsi_list ; 
> > > > p...@bustykelp.com
> > > > Subject: Re: Emit particles frm surfaces facing a particular
> > > > direction?
> > > >
> > > > Thanks Paul. I know stuf like this is trivial to you, but it is not 
> > > > so
> > > > much
> > > > the method that escapes me as the lack of a tool that does this.
> > > >
> > > > I can figure out how to get a vector from a nulls position and Get
> > > > Point
> > > > Normals from my geometry, I can then get the angle between them and
> > > > put
> > > > than
> > > > into a Less than or equal to node, but how to transform a threshold
> > > > value
> > > > into either weightmap values, creating a sample set to emit from or
> > > > filtering an emission, I don't know.
> > > >
> > > > I was sort of hoping there would be a node or compound I had
> > > > overlooked
> > > > which provided something I could use :)
> > > >
> > > > cheers
> > > > Morten
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > You can either
> > > > >
> > > > > Emit from the whole and delete the ones that aren't pointing in 
> > > > > the
> > > > > right
> > > > > direction, (based on comparing the normal angle to your preferred
> > > > > vector)
> > > > >
> > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > based
> > > > > upon
> > > > > the normal angle and use the weightmap in the Emit node. (This 
> > > > > wont
> > > > > work
> > > > > on
> > > > > low poly meshes for obvious reasons)
> > > > >
> > > > > Or make a duplicate of the surface, and use ICE to delete Polys 
> > > > > that
> > > > > aren't
> > > > > pointing in the right direction, then emit from the resulting
> > > > > object.
> > > > >
> > > > >
> > > > > Number 1 is the easiest to set up.
> > > > >
> > > > > Paul
> > > > >
> > > > >
> > > > > -Original Message- 
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > > To: Userlist, Softimage
> > > > > Subject: Emit particles frm surfaces facing a particular 
> > > > > direction?
> > > > >
> > > > > I have looked through the sample scenes but could not find 
> > > > > something
> > > > > that
> > > > > does this. I want to emit particles from surfaces of an object 
> > > > > that
> > > > > faces
> > > > > in
> > > > > a particular direction, either a custom vector or fom polygons
> > > > > facing
> > > > > a
> > > > > null.
> > > > >
> > > > > How can I do this?
> > > > >
> > > > > Thanks.
> 

Re: Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

Great explanation Paul. I was missing the emit location part, which I guess 
will explain why I did not see the desired effect :)

I miss your tutorials, but I guess you are diving into Houdini. Maybe you can 
make that more accessible to people like me - you have a great talent for 
teaching.

Thanks 
Morten



> Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
> 
> 
> https://vimeo.com/208318679  watch this
> 
> 
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 2:47 PM
> To: Official Softimage Users Mailing 
> List.https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
> 
> Oh goodie. I thought I had almost got it right, and I saw a reaction, but 
> clearly not the desired one :)
> 
> 
> MB
> 
> 
> 
> 
> > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> >
> >
> > I'm making you a video if you can hold out a moment and I'll send the link
> >
> >
> >
> > -Original Message- 
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:13 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Also seems replies with attachments don't get through...
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > :
> > >
> > >
> > > It seems I am doing something wrong - I am not getting the right values.
> > >
> > > MB
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > >
> > > >
> > > > The easiest thing is to emit over the whole object then do what you 
> > > > did
> > > > and
> > > > plug the output of your 'Less than' into a Delete Particle node.
> > > >
> > > > -Original Message- 
> > > > From: Morten Bartholdy
> > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > To: Official Softimage Users Mailing List.
> > > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> > > > Subject: Re: Emit particles frm surfaces facing a particular 
> > > > direction?
> > > >
> > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so
> > > > much
> > > > the method that escapes me as the lack of a tool that does this.
> > > >
> > > > I can figure out how to get a vector from a nulls position and Get 
> > > > Point
> > > > Normals from my geometry, I can then get the angle between them and 
> > > > put
> > > > than
> > > > into a Less than or equal to node, but how to transform a threshold
> > > > value
> > > > into either weightmap values, creating a sample set to emit from or
> > > > filtering an emission, I don't know.
> > > >
> > > > I was sort of hoping there would be a node or compound I had 
> > > > overlooked
> > > > which provided something I could use :)
> > > >
> > > > cheers
> > > > Morten
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > You can either
> > > > >
> > > > > Emit from the whole and delete the ones that aren't pointing in the
> > > > > right
> > > > > direction, (based on comparing the normal angle to your preferred
> > > > > vector)
> > > > >
> > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > based
> > > > > upon
> > > > > the normal angle and use the weightmap in the Emit node. (This wont
> > > > > work
> > > > > on
> > > > > low poly meshes for obvious reasons)
> > > > >
> > > > > Or make a duplicate of the surface, and use ICE to delete Polys that
> > > > > aren't
> > > > > pointing in the right direction, then emit from the resulting 
> > > > > object.
> > > > >
> > > > >
> > > > > Number 1 is the easiest to set up.
> > > > >
> > > > > Paul
> > > > >
> > > > >
> > > > > -Original Message- 
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > > To: Userlist, Softimage
> > > > > Subject: Emit particles frm surfaces facing a particular direction?
> > > > >
> > > > > I have looked through the sample scenes but could not find something
> > > > > that
> > > > > does this. I want to emit particles from surfaces of an object that
> > > > > faces
> > > > > in
> > > > > a particular direction, either a custom vector or fom polygons 
> > > > > facing
> > > > > a
> > > > > null.
> > > > >
> > > > > How can I do this?
> > > > >
> > > > > Thanks.
> > > > >
> > > > > Morten
> > > > > --
> > > > > Softimage Mailing List.
> > > > > To unsubscribe, send a mail to 
> > > > > softimage-requ...@listproc.autodesk.com
> > > > > with
> > > > > "unsubscribe" in the subject, and reply to confirm.
> > > > >
> > > > > --
> > > > > Softimage Mailing List.
> > > > > To unsubscribe, send a mail to 
> > > > > softimage-requ...@listproc.autodesk.com
> > > > > with "unsubscribe" in the subject, and reply to confirm.
> > > >
> > > --
> > > Softimage Mailing List.
> > > 

Re: Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

Damn you are fast :)

Thanks a million.

Best
Morten


> Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com:
> 
> 
> https://vimeo.com/208318679  watch this
> 
> 
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 2:47 PM
> To: Official Softimage Users Mailing 
> List.https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
> 
> Oh goodie. I thought I had almost got it right, and I saw a reaction, but 
> clearly not the desired one :)
> 
> 
> MB
> 
> 
> 
> 
> > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> >
> >
> > I'm making you a video if you can hold out a moment and I'll send the link
> >
> >
> >
> > -Original Message- 
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 2:13 PM
> > To: Official Softimage Users Mailing
> > List.https://groups.google.com/forum/#!forum/xsi_list
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Also seems replies with attachments don't get through...
> >
> > MB
> >
> >
> >
> >
> > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > > :
> > >
> > >
> > > It seems I am doing something wrong - I am not getting the right values.
> > >
> > > MB
> > >
> > >
> > >
> > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > > >
> > > >
> > > > The easiest thing is to emit over the whole object then do what you 
> > > > did
> > > > and
> > > > plug the output of your 'Less than' into a Delete Particle node.
> > > >
> > > > -Original Message- 
> > > > From: Morten Bartholdy
> > > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > > To: Official Softimage Users Mailing List.
> > > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> > > > Subject: Re: Emit particles frm surfaces facing a particular 
> > > > direction?
> > > >
> > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so
> > > > much
> > > > the method that escapes me as the lack of a tool that does this.
> > > >
> > > > I can figure out how to get a vector from a nulls position and Get 
> > > > Point
> > > > Normals from my geometry, I can then get the angle between them and 
> > > > put
> > > > than
> > > > into a Less than or equal to node, but how to transform a threshold
> > > > value
> > > > into either weightmap values, creating a sample set to emit from or
> > > > filtering an emission, I don't know.
> > > >
> > > > I was sort of hoping there would be a node or compound I had 
> > > > overlooked
> > > > which provided something I could use :)
> > > >
> > > > cheers
> > > > Morten
> > > >
> > > >
> > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > > >
> > > > >
> > > > > You can either
> > > > >
> > > > > Emit from the whole and delete the ones that aren't pointing in the
> > > > > right
> > > > > direction, (based on comparing the normal angle to your preferred
> > > > > vector)
> > > > >
> > > > > Or create a weightmap on the object and use ICE to set the values
> > > > > based
> > > > > upon
> > > > > the normal angle and use the weightmap in the Emit node. (This wont
> > > > > work
> > > > > on
> > > > > low poly meshes for obvious reasons)
> > > > >
> > > > > Or make a duplicate of the surface, and use ICE to delete Polys that
> > > > > aren't
> > > > > pointing in the right direction, then emit from the resulting 
> > > > > object.
> > > > >
> > > > >
> > > > > Number 1 is the easiest to set up.
> > > > >
> > > > > Paul
> > > > >
> > > > >
> > > > > -Original Message- 
> > > > > From: Morten Bartholdy
> > > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > > To: Userlist, Softimage
> > > > > Subject: Emit particles frm surfaces facing a particular direction?
> > > > >
> > > > > I have looked through the sample scenes but could not find something
> > > > > that
> > > > > does this. I want to emit particles from surfaces of an object that
> > > > > faces
> > > > > in
> > > > > a particular direction, either a custom vector or fom polygons 
> > > > > facing
> > > > > a
> > > > > null.
> > > > >
> > > > > How can I do this?
> > > > >
> > > > > Thanks.
> > > > >
> > > > > Morten
> > > > > --
> > > > > Softimage Mailing List.
> > > > > To unsubscribe, send a mail to 
> > > > > softimage-requ...@listproc.autodesk.com
> > > > > with
> > > > > "unsubscribe" in the subject, and reply to confirm.
> > > > >
> > > > > --
> > > > > Softimage Mailing List.
> > > > > To unsubscribe, send a mail to 
> > > > > softimage-requ...@listproc.autodesk.com
> > > > > with "unsubscribe" in the subject, and reply to confirm.
> > > >
> > > --
> > > Softimage Mailing List.
> > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> > > with "unsubscribe" in the subject, and reply to confirm.
> > --
> > Softimage Mailing List.
> > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> > with
> 

Re: Emit particles frm surfaces facing a particular direction?

[paul]

https://vimeo.com/208318679  watch this


-Original Message- 
From: Morten Bartholdy
Sent: Tuesday, March 14, 2017 2:47 PM
To: Official Softimage Users Mailing 
List.https://groups.google.com/forum/#!forum/xsi_list
Subject: Re: Emit particles frm surfaces facing a particular direction?

Oh goodie. I thought I had almost got it right, and I saw a reaction, but 
clearly not the desired one :)


MB




> Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
>
>
> I'm making you a video if you can hold out a moment and I'll send the link
>
>
>
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 2:13 PM
> To: Official Softimage Users Mailing
> List.https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
>
> Also seems replies with attachments don't get through...
>
> MB
>
>
>
>
> > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy
> > :
> >
> >
> > It seems I am doing something wrong - I am not getting the right values.
> >
> > MB
> >
> >
> >
> > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > >
> > >
> > > The easiest thing is to emit over the whole object then do what you 
> > > did
> > > and
> > > plug the output of your 'Less than' into a Delete Particle node.
> > >
> > > -Original Message- 
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > To: Official Softimage Users Mailing List.
> > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> > > Subject: Re: Emit particles frm surfaces facing a particular 
> > > direction?
> > >
> > > Thanks Paul. I know stuf like this is trivial to you, but it is not so
> > > much
> > > the method that escapes me as the lack of a tool that does this.
> > >
> > > I can figure out how to get a vector from a nulls position and Get 
> > > Point
> > > Normals from my geometry, I can then get the angle between them and 
> > > put
> > > than
> > > into a Less than or equal to node, but how to transform a threshold
> > > value
> > > into either weightmap values, creating a sample set to emit from or
> > > filtering an emission, I don't know.
> > >
> > > I was sort of hoping there would be a node or compound I had 
> > > overlooked
> > > which provided something I could use :)
> > >
> > > cheers
> > > Morten
> > >
> > >
> > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > >
> > > >
> > > > You can either
> > > >
> > > > Emit from the whole and delete the ones that aren't pointing in the
> > > > right
> > > > direction, (based on comparing the normal angle to your preferred
> > > > vector)
> > > >
> > > > Or create a weightmap on the object and use ICE to set the values
> > > > based
> > > > upon
> > > > the normal angle and use the weightmap in the Emit node. (This wont
> > > > work
> > > > on
> > > > low poly meshes for obvious reasons)
> > > >
> > > > Or make a duplicate of the surface, and use ICE to delete Polys that
> > > > aren't
> > > > pointing in the right direction, then emit from the resulting 
> > > > object.
> > > >
> > > >
> > > > Number 1 is the easiest to set up.
> > > >
> > > > Paul
> > > >
> > > >
> > > > -Original Message- 
> > > > From: Morten Bartholdy
> > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > To: Userlist, Softimage
> > > > Subject: Emit particles frm surfaces facing a particular direction?
> > > >
> > > > I have looked through the sample scenes but could not find something
> > > > that
> > > > does this. I want to emit particles from surfaces of an object that
> > > > faces
> > > > in
> > > > a particular direction, either a custom vector or fom polygons 
> > > > facing
> > > > a
> > > > null.
> > > >
> > > > How can I do this?
> > > >
> > > > Thanks.
> > > >
> > > > Morten
> > > > --
> > > > Softimage Mailing List.
> > > > To unsubscribe, send a mail to 
> > > > softimage-requ...@listproc.autodesk.com
> > > > with
> > > > "unsubscribe" in the subject, and reply to confirm.
> > > >
> > > > --
> > > > Softimage Mailing List.
> > > > To unsubscribe, send a mail to 
> > > > softimage-requ...@listproc.autodesk.com
> > > > with "unsubscribe" in the subject, and reply to confirm.
> > >
> > --
> > Softimage Mailing List.
> > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> > with "unsubscribe" in the subject, and reply to confirm.
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> with
> "unsubscribe" in the subject, and reply to confirm.
>
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> with "unsubscribe" in the subject, and reply to confirm.
--
Softimage Mailing List.
To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
"unsubscribe" in the subject, and reply to confirm. 

--
Softimage Mailing List.
To unsubscribe, send a 

Re: Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

Oh goodie. I thought I had almost got it right, and I saw a reaction, but 
clearly not the desired one :)


MB




> Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com:
> 
> 
> I'm making you a video if you can hold out a moment and I'll send the link
> 
> 
> 
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 2:13 PM
> To: Official Softimage Users Mailing 
> List.https://groups.google.com/forum/#!forum/xsi_list
> Subject: Re: Emit particles frm surfaces facing a particular direction?
> 
> Also seems replies with attachments don't get through...
> 
> MB
> 
> 
> 
> 
> > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy 
> > :
> >
> >
> > It seems I am doing something wrong - I am not getting the right values.
> >
> > MB
> >
> >
> >
> > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > >
> > >
> > > The easiest thing is to emit over the whole object then do what you did 
> > > and
> > > plug the output of your 'Less than' into a Delete Particle node.
> > >
> > > -Original Message- 
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 11:19 AM
> > > To: Official Softimage Users Mailing List.
> > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> > > Subject: Re: Emit particles frm surfaces facing a particular direction?
> > >
> > > Thanks Paul. I know stuf like this is trivial to you, but it is not so 
> > > much
> > > the method that escapes me as the lack of a tool that does this.
> > >
> > > I can figure out how to get a vector from a nulls position and Get Point
> > > Normals from my geometry, I can then get the angle between them and put 
> > > than
> > > into a Less than or equal to node, but how to transform a threshold 
> > > value
> > > into either weightmap values, creating a sample set to emit from or
> > > filtering an emission, I don't know.
> > >
> > > I was sort of hoping there would be a node or compound I had overlooked
> > > which provided something I could use :)
> > >
> > > cheers
> > > Morten
> > >
> > >
> > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > > >
> > > >
> > > > You can either
> > > >
> > > > Emit from the whole and delete the ones that aren't pointing in the 
> > > > right
> > > > direction, (based on comparing the normal angle to your preferred 
> > > > vector)
> > > >
> > > > Or create a weightmap on the object and use ICE to set the values 
> > > > based
> > > > upon
> > > > the normal angle and use the weightmap in the Emit node. (This wont 
> > > > work
> > > > on
> > > > low poly meshes for obvious reasons)
> > > >
> > > > Or make a duplicate of the surface, and use ICE to delete Polys that
> > > > aren't
> > > > pointing in the right direction, then emit from the resulting object.
> > > >
> > > >
> > > > Number 1 is the easiest to set up.
> > > >
> > > > Paul
> > > >
> > > >
> > > > -Original Message- 
> > > > From: Morten Bartholdy
> > > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > > To: Userlist, Softimage
> > > > Subject: Emit particles frm surfaces facing a particular direction?
> > > >
> > > > I have looked through the sample scenes but could not find something 
> > > > that
> > > > does this. I want to emit particles from surfaces of an object that 
> > > > faces
> > > > in
> > > > a particular direction, either a custom vector or fom polygons facing 
> > > > a
> > > > null.
> > > >
> > > > How can I do this?
> > > >
> > > > Thanks.
> > > >
> > > > Morten
> > > > --
> > > > Softimage Mailing List.
> > > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> > > > with
> > > > "unsubscribe" in the subject, and reply to confirm.
> > > >
> > > > --
> > > > Softimage Mailing List.
> > > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> > > > with "unsubscribe" in the subject, and reply to confirm.
> > >
> > --
> > Softimage Mailing List.
> > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> > with "unsubscribe" in the subject, and reply to confirm.
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
> "unsubscribe" in the subject, and reply to confirm. 
> 
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
> "unsubscribe" in the subject, and reply to confirm.
--
Softimage Mailing List.
To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
"unsubscribe" in the subject, and reply to confirm.

Re: Emit particles frm surfaces facing a particular direction?

[paul]

I'm making you a video if you can hold out a moment and I'll send the link



-Original Message- 
From: Morten Bartholdy
Sent: Tuesday, March 14, 2017 2:13 PM
To: Official Softimage Users Mailing 
List.https://groups.google.com/forum/#!forum/xsi_list
Subject: Re: Emit particles frm surfaces facing a particular direction?

Also seems replies with attachments don't get through...

MB




> Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy 
> :
>
>
> It seems I am doing something wrong - I am not getting the right values.
>
> MB
>
>
>
> > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> >
> >
> > The easiest thing is to emit over the whole object then do what you did 
> > and
> > plug the output of your 'Less than' into a Delete Particle node.
> >
> > -Original Message- 
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 11:19 AM
> > To: Official Softimage Users Mailing List.
> > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> >
> > Thanks Paul. I know stuf like this is trivial to you, but it is not so 
> > much
> > the method that escapes me as the lack of a tool that does this.
> >
> > I can figure out how to get a vector from a nulls position and Get Point
> > Normals from my geometry, I can then get the angle between them and put 
> > than
> > into a Less than or equal to node, but how to transform a threshold 
> > value
> > into either weightmap values, creating a sample set to emit from or
> > filtering an emission, I don't know.
> >
> > I was sort of hoping there would be a node or compound I had overlooked
> > which provided something I could use :)
> >
> > cheers
> > Morten
> >
> >
> > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > >
> > >
> > > You can either
> > >
> > > Emit from the whole and delete the ones that aren't pointing in the 
> > > right
> > > direction, (based on comparing the normal angle to your preferred 
> > > vector)
> > >
> > > Or create a weightmap on the object and use ICE to set the values 
> > > based
> > > upon
> > > the normal angle and use the weightmap in the Emit node. (This wont 
> > > work
> > > on
> > > low poly meshes for obvious reasons)
> > >
> > > Or make a duplicate of the surface, and use ICE to delete Polys that
> > > aren't
> > > pointing in the right direction, then emit from the resulting object.
> > >
> > >
> > > Number 1 is the easiest to set up.
> > >
> > > Paul
> > >
> > >
> > > -Original Message- 
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > To: Userlist, Softimage
> > > Subject: Emit particles frm surfaces facing a particular direction?
> > >
> > > I have looked through the sample scenes but could not find something 
> > > that
> > > does this. I want to emit particles from surfaces of an object that 
> > > faces
> > > in
> > > a particular direction, either a custom vector or fom polygons facing 
> > > a
> > > null.
> > >
> > > How can I do this?
> > >
> > > Thanks.
> > >
> > > Morten
> > > --
> > > Softimage Mailing List.
> > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> > > with
> > > "unsubscribe" in the subject, and reply to confirm.
> > >
> > > --
> > > Softimage Mailing List.
> > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com
> > > with "unsubscribe" in the subject, and reply to confirm.
> >
> --
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Maya Noise Jitter Question?

[Chris Johnson]

Sorry for the Maya question on here.

I'm trying to do a simple jitter on a piece of geometry to add some
animated noise. Can Maya not do this out of the box? This is the simplest
of functions in Max and XSI. I'm finding a bunch of scripts but none
supported for 2017!?

Any direction would helpI can always fake it but this is a simple ask
for any 3D ap.

-- 

Chris Johnson | www.someonescousin.com | 416.473.1624

 


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Re: Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

Also seems replies with attachments don't get through...

MB




> Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy 
> :
> 
> 
> It seems I am doing something wrong - I am not getting the right values.
> 
> MB
> 
> 
> 
> > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> > 
> > 
> > The easiest thing is to emit over the whole object then do what you did and 
> > plug the output of your 'Less than' into a Delete Particle node.
> > 
> > -Original Message- 
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 11:19 AM
> > To: Official Softimage Users Mailing List. 
> > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> > Subject: Re: Emit particles frm surfaces facing a particular direction?
> > 
> > Thanks Paul. I know stuf like this is trivial to you, but it is not so much 
> > the method that escapes me as the lack of a tool that does this.
> > 
> > I can figure out how to get a vector from a nulls position and Get Point 
> > Normals from my geometry, I can then get the angle between them and put 
> > than 
> > into a Less than or equal to node, but how to transform a threshold value 
> > into either weightmap values, creating a sample set to emit from or 
> > filtering an emission, I don't know.
> > 
> > I was sort of hoping there would be a node or compound I had overlooked 
> > which provided something I could use :)
> > 
> > cheers
> > Morten
> > 
> > 
> > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> > >
> > >
> > > You can either
> > >
> > > Emit from the whole and delete the ones that aren't pointing in the right
> > > direction, (based on comparing the normal angle to your preferred vector)
> > >
> > > Or create a weightmap on the object and use ICE to set the values based 
> > > upon
> > > the normal angle and use the weightmap in the Emit node. (This wont work 
> > > on
> > > low poly meshes for obvious reasons)
> > >
> > > Or make a duplicate of the surface, and use ICE to delete Polys that 
> > > aren't
> > > pointing in the right direction, then emit from the resulting object.
> > >
> > >
> > > Number 1 is the easiest to set up.
> > >
> > > Paul
> > >
> > >
> > > -Original Message- 
> > > From: Morten Bartholdy
> > > Sent: Tuesday, March 14, 2017 10:05 AM
> > > To: Userlist, Softimage
> > > Subject: Emit particles frm surfaces facing a particular direction?
> > >
> > > I have looked through the sample scenes but could not find something that
> > > does this. I want to emit particles from surfaces of an object that faces 
> > > in
> > > a particular direction, either a custom vector or fom polygons facing a
> > > null.
> > >
> > > How can I do this?
> > >
> > > Thanks.
> > >
> > > Morten
> > > --
> > > Softimage Mailing List.
> > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> > > with
> > > "unsubscribe" in the subject, and reply to confirm.
> > >
> > > --
> > > Softimage Mailing List.
> > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> > > with "unsubscribe" in the subject, and reply to confirm. 
> >
> --
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> "unsubscribe" in the subject, and reply to confirm.
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Re: Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

It seems I am doing something wrong - I am not getting the right values.

MB



> Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com:
> 
> 
> The easiest thing is to emit over the whole object then do what you did and 
> plug the output of your 'Less than' into a Delete Particle node.
> 
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 11:19 AM
> To: Official Softimage Users Mailing List. 
> https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
> Subject: Re: Emit particles frm surfaces facing a particular direction?
> 
> Thanks Paul. I know stuf like this is trivial to you, but it is not so much 
> the method that escapes me as the lack of a tool that does this.
> 
> I can figure out how to get a vector from a nulls position and Get Point 
> Normals from my geometry, I can then get the angle between them and put than 
> into a Less than or equal to node, but how to transform a threshold value 
> into either weightmap values, creating a sample set to emit from or 
> filtering an emission, I don't know.
> 
> I was sort of hoping there would be a node or compound I had overlooked 
> which provided something I could use :)
> 
> cheers
> Morten
> 
> 
> > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> >
> >
> > You can either
> >
> > Emit from the whole and delete the ones that aren't pointing in the right
> > direction, (based on comparing the normal angle to your preferred vector)
> >
> > Or create a weightmap on the object and use ICE to set the values based 
> > upon
> > the normal angle and use the weightmap in the Emit node. (This wont work 
> > on
> > low poly meshes for obvious reasons)
> >
> > Or make a duplicate of the surface, and use ICE to delete Polys that 
> > aren't
> > pointing in the right direction, then emit from the resulting object.
> >
> >
> > Number 1 is the easiest to set up.
> >
> > Paul
> >
> >
> > -Original Message- 
> > From: Morten Bartholdy
> > Sent: Tuesday, March 14, 2017 10:05 AM
> > To: Userlist, Softimage
> > Subject: Emit particles frm surfaces facing a particular direction?
> >
> > I have looked through the sample scenes but could not find something that
> > does this. I want to emit particles from surfaces of an object that faces 
> > in
> > a particular direction, either a custom vector or fom polygons facing a
> > null.
> >
> > How can I do this?
> >
> > Thanks.
> >
> > Morten
> > --
> > Softimage Mailing List.
> > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> > with
> > "unsubscribe" in the subject, and reply to confirm.
> >
> > --
> > Softimage Mailing List.
> > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> > with "unsubscribe" in the subject, and reply to confirm. 
>
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Re: Emit particles frm surfaces facing a particular direction?

[paul]

The easiest thing is to emit over the whole object then do what you did and 
plug the output of your 'Less than' into a Delete Particle node.

-Original Message- 
From: Morten Bartholdy
Sent: Tuesday, March 14, 2017 11:19 AM
To: Official Softimage Users Mailing List. 
https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com
Subject: Re: Emit particles frm surfaces facing a particular direction?

Thanks Paul. I know stuf like this is trivial to you, but it is not so much 
the method that escapes me as the lack of a tool that does this.

I can figure out how to get a vector from a nulls position and Get Point 
Normals from my geometry, I can then get the angle between them and put than 
into a Less than or equal to node, but how to transform a threshold value 
into either weightmap values, creating a sample set to emit from or 
filtering an emission, I don't know.

I was sort of hoping there would be a node or compound I had overlooked 
which provided something I could use :)

cheers
Morten


> Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
>
>
> You can either
>
> Emit from the whole and delete the ones that aren't pointing in the right
> direction, (based on comparing the normal angle to your preferred vector)
>
> Or create a weightmap on the object and use ICE to set the values based 
> upon
> the normal angle and use the weightmap in the Emit node. (This wont work 
> on
> low poly meshes for obvious reasons)
>
> Or make a duplicate of the surface, and use ICE to delete Polys that 
> aren't
> pointing in the right direction, then emit from the resulting object.
>
>
> Number 1 is the easiest to set up.
>
> Paul
>
>
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 10:05 AM
> To: Userlist, Softimage
> Subject: Emit particles frm surfaces facing a particular direction?
>
> I have looked through the sample scenes but could not find something that
> does this. I want to emit particles from surfaces of an object that faces 
> in
> a particular direction, either a custom vector or fom polygons facing a
> null.
>
> How can I do this?
>
> Thanks.
>
> Morten
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> with
> "unsubscribe" in the subject, and reply to confirm.
>
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com 
> with "unsubscribe" in the subject, and reply to confirm. 

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Re: Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

Thanks Paul. I know stuf like this is trivial to you, but it is not so much the 
method that escapes me as the lack of a tool that does this.

I can figure out how to get a vector from a nulls position and Get Point 
Normals from my geometry, I can then get the angle between them and put than 
into a Less than or equal to node, but how to transform a threshold value into 
either weightmap values, creating a sample set to emit from or filtering an 
emission, I don't know.

I was sort of hoping there would be a node or compound I had overlooked which 
provided something I could use :)

cheers
Morten


> Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com:
> 
> 
> You can either
> 
> Emit from the whole and delete the ones that aren't pointing in the right 
> direction, (based on comparing the normal angle to your preferred vector)
> 
> Or create a weightmap on the object and use ICE to set the values based upon 
> the normal angle and use the weightmap in the Emit node. (This wont work on 
> low poly meshes for obvious reasons)
> 
> Or make a duplicate of the surface, and use ICE to delete Polys that aren't 
> pointing in the right direction, then emit from the resulting object.
> 
> 
> Number 1 is the easiest to set up.
> 
> Paul
> 
> 
> -Original Message- 
> From: Morten Bartholdy
> Sent: Tuesday, March 14, 2017 10:05 AM
> To: Userlist, Softimage
> Subject: Emit particles frm surfaces facing a particular direction?
> 
> I have looked through the sample scenes but could not find something that 
> does this. I want to emit particles from surfaces of an object that faces in 
> a particular direction, either a custom vector or fom polygons facing a 
> null.
> 
> How can I do this?
> 
> Thanks.
> 
> Morten
> --
> Softimage Mailing List.
> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
> "unsubscribe" in the subject, and reply to confirm. 
> 
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Re: Emit particles frm surfaces facing a particular direction?

[paul]

You can either

Emit from the whole and delete the ones that aren't pointing in the right 
direction, (based on comparing the normal angle to your preferred vector)

Or create a weightmap on the object and use ICE to set the values based upon 
the normal angle and use the weightmap in the Emit node. (This wont work on 
low poly meshes for obvious reasons)

Or make a duplicate of the surface, and use ICE to delete Polys that aren't 
pointing in the right direction, then emit from the resulting object.


Number 1 is the easiest to set up.

Paul


-Original Message- 
From: Morten Bartholdy
Sent: Tuesday, March 14, 2017 10:05 AM
To: Userlist, Softimage
Subject: Emit particles frm surfaces facing a particular direction?

I have looked through the sample scenes but could not find something that 
does this. I want to emit particles from surfaces of an object that faces in 
a particular direction, either a custom vector or fom polygons facing a 
null.

How can I do this?

Thanks.

Morten
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Emit particles frm surfaces facing a particular direction?

[Morten Bartholdy]

I have looked through the sample scenes but could not find something that does 
this. I want to emit particles from surfaces of an object that faces in a 
particular direction, either a custom vector or fom polygons facing a null.

How can I do this?

Thanks.

Morten
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