As I said, dynamically manipulating cluster population in XSI in general
isn't really a viable option.
That said, outputting an ice attribute per edge and reading it from a
run-once python script is an option, sure.


On Thu, Apr 3, 2014 at 11:20 AM, pedro santos <[email protected]> wrote:

> Unfortunately I want to drive the population of a specific cluster. The
> cluster that controls Hard Edges for Subdivision.
>
> I've made a tree that returns the angle between the 2 polygons meeting at
> the edge:
>
>
>
> The end use would be to drive Subdivision Hard Edges so I don't have to
> manually selected the sharpest edges of my mesh. Just slap a "Grater than"
> node (for example greater than 60ยบ) and have that condition to populate the
> cluster.
>
> So you say this is impossible... Damn... there goes my creativity :P
>
> Would for example Python be able to call this tree of mine and return a
> list of angles so then in python I would make a selection out of those
> values?
> Well if there is a script already that selects edges based on an Angle
> Threshold, I'll take it... Or I even make mine if there is way through
> python to get the polygon normal of both polygons associated with the edge.
>
> Gahh... I though I was gonna outsmart this one :P
>
> Cheers
>
>
> On Thu, Apr 3, 2014 at 1:02 AM, Raffaele Fragapane <
> [email protected]> wrote:
>
>> You can't alter the membership of clusters from ICE. Altering membership
>> of a cluster in general in XSI is a pain in the arse.
>> Walking a rose grove means you get a lot of pain from the thorns :p
>>
>> If you want ICE to drive something that something else down the line will
>> use I suggest you use a weight map instead.
>> Just output the weightmap from ICE (you can do that), and use it as an
>> input in whatever the following step is. There's very few things in XSI
>> that a point cluster can filter for that can't be done with a weightmap
>> anyway.
>>
>> Unless you want to drive poly clusters for materials, in which case, no
>> dice with a weightmap, but a vertex colour map might do the trick.
>>
>>
>> On Thu, Apr 3, 2014 at 10:50 AM, pedro santos <[email protected]> wrote:
>>
>>> What do you mean with "rose grove"? I don't get the expression. Even
>>> consulter urban dictionary :P
>>>
>>> Anyways imagine something simple as: if element posY is less than 2,
>>> than it belongs to the cluster.
>>>
>>> Cheers
>>>
>>>
>>> On Thu, Apr 3, 2014 at 12:47 AM, pedro santos <[email protected]>wrote:
>>>
>>>> I don't want to change the cluster selection input to drive something
>>>> in ICE.
>>>> I want to actually change the cluster with ICE to drive something out
>>>> of ICE, with the cluster.
>>>>
>>>> Thanks
>>>>
>>>>
>>>> On Wed, Apr 2, 2014 at 11:53 PM, Raffaele Fragapane <
>>>> [email protected]> wrote:
>>>>
>>>>> You wanting an ICE tree to affect the active selection? If that, no
>>>>> chance; selection is an interaction feature, not a set of data that can be
>>>>> persisted and manipulated through live ops, ICE included, of any kind.
>>>>> Modifying the population of a cluster dynamically is a rose grove.
>>>>>
>>>>> What are you trying to do exactly?
>>>>>
>>>>>
>>>>> On Thu, Apr 3, 2014 at 9:13 AM, pedro santos <[email protected]>wrote:
>>>>>
>>>>>> Tried to use clusters. I've thought it was the rational thing to do,
>>>>>> but apparently I cannot set them.
>>>>>> http://screencast.com/t/fWVYswfaBlu5
>>>>>>
>>>>>> How do you guys go about this?
>>>>>>
>>>>>> Can Python create on-thefly Trees to return values or such?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Our users will know fear and cower before our software! Ship it! Ship
>>>>> it and let them flee like the dogs they are!
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> [img]
>>>> http://i153.photobucket.com/albums/s202/animatics/avatar_1.gif[/img]
>>>>
>>>
>>>
>>>
>>> --
>>> [img]
>>> http://i153.photobucket.com/albums/s202/animatics/avatar_1.gif[/img]
>>>
>>
>>
>>
>> --
>> Our users will know fear and cower before our software! Ship it! Ship it
>> and let them flee like the dogs they are!
>>
>
>
>
> --
> [img]http://i153.photobucket.com/albums/s202/animatics/avatar_1.gif[/img]
>



-- 
Our users will know fear and cower before our software! Ship it! Ship it
and let them flee like the dogs they are!

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