It /is/ possible to retrieve the maximum value in a VOP since
nothing stops anyone from manually iterating through all the
points of the geometry. This kind of operation might be more
suited in “detail” mode though.
Also, having the ramp normalized to the [0, 1] range in both the
X and Y axis is usually “workarounded” by adding a float
parameter for the amplitude (Y axis) that is used as a global
multiplier (making later tweakings convenient!), and a float2
parameter for the target range (X axis) that is then remapped
using `fit("my_ramp", 0.0, 1.0, range_min, range_max)` (which is
also convenient for later tweakings!).
Now, if you really want to have an actual FCurve, then just
create a simple float parameter, add all the keys however you
want, then query it in using `chf("my_param",
the_time_in_seconds)` in VEX/VOP, or using the equivalent expression.
On 6 March 2017 at 23:29, Jonathan Moore
<jonathan.moo...@gmail.com <mailto:jonathan.moo...@gmail.com>> wrote:
Fabricio ,
The Attribute Promote help page has approx 15 examples you
can load. Hopefully you might find something within the
examples to inspires a solution.
*From:*softimage-boun...@listproc.autodesk.com
<mailto:softimage-boun...@listproc.autodesk.com>
[mailto:softimage-boun...@listproc.autodesk.com
<mailto:softimage-boun...@listproc.autodesk.com>] *On Behalf
Of *Olivier Jeannel
*Sent:* 06 March 2017 15:56
*To:* Official Softimage Users Mailing List.
https://groups.google.com/forum/#!forum/xsi_list
<https://groups.google.com/forum/#%21forum/xsi_list>
<softimage@listproc.autodesk.com
<mailto:softimage@listproc.autodesk.com>>
*Subject:* Re: houdini question (and where to ask)
You can't get the "get maximum in set" when inside a vop.
But, you get those options with the promote attribute sop.
On Monday, March 6, 2017, Oscar Juarez
<tridi.animei...@gmail.com
<mailto:tridi.animei...@gmail.com>> wrote:
I would like to be proven wrong, but that would be the
way, I mean in your second pointvop you don't need to add
another noise, your noise is already saved in an
attribute, when you promote just check off delete
original and you can access the same noise. Also noises
have specific output ranges, they come in the
documentation, so you can always add a fit node to change
your range to what you need, in the geometry spreadsheet
you can also sort by value so you can see max and min.
If you press X with your mouse over the noise output it
will add a visualization node, you can visualize on the
viewport or in the geometry spreadsheet the values. I
know its not the same but as far as I know their is no
way to do the same as the get maximum in set node in a
vopsop context.
On Mon, Mar 6, 2017 at 3:57 PM, Fabricio Chamon
<xsiml...@gmail.com> wrote:
thanks everyone. The ramp parameter kind of works but
as you say, is not that user friendly and does not
show the points below 0. (that's ok, but I wonder if
it is possible to write a custom widget in houdini)
anyway, the thing I could not get right just yet is
that sort of "get maximum in set" thing. Sorry for
using ICE language, I'm trying to be open minded
here, so please tell me if that`s not the correct
mindset.
so on this graph:
Imagem inline 1
...how could I get the maximum value of the output
noise node and compare to a single point output of
the same node?
From what I can tell, I'd have to:
1- create this pointvop node with a turbnoise, then
store the output noise into an attribute (via
bindexport?)
2- up one level -> drop an attrib promote (detail),
set to maximum
3- drop another pointvop node with another noise node
inside (same parameters) and compare the result noise
to that found on the atrib promote node??
I'm 99% sure this is totally wrong...how would you go
about that single task specifically?
and finally, thanks for the suggestions on houdini
forums and discord. will try both (although I pretty
much like this list =) )
2017-03-06 15:17 GMT+01:00 gareth bell
<garethb...@outlook.com>:
yeah - the lack of handles is frustrating
------------------------------------------------------------------------
*From:*softimage-boun...@listproc.autodesk.com<softimage-boun...@listproc.autodesk.com>
on behalf of Olivier Jeannel <facialdel...@gmail.com>
*Sent:* 06 March 2017 14:05:17
*To:* Official Softimage Users Mailing List.
https://groups.google.com/forum/#!forum/xsi_list
<https://groups.google.com/forum/#%21forum/xsi_list>
*Subject:* Re: houdini question (and where to ask)
yep but it has no handles
and try to make négative values, it takes them
but wont show on the curve as it has a 0,1 space.
Unless i'm wrong (which i'd love to be)
Le 6 mars 2017 14:36, "Olivier Jeannel"
<facialdel...@gmail.com> a écrit :
in vop, bind and bind export node will get an
set datas.
Ramp Parameters is sort of fcurve.
It's a bit weak in terms of curve
manipulation, but does the job.
It has 2 modes rgb (ramp) and spline.
If you use several ramps in the same vop,
name them with different name or they might
not export.
Le 6 mars 2017 14:28, "Fabricio Chamon"
<xsiml...@gmail.com> a écrit :
..sorry, hit send too soon.
Question #1: are there any equivalents to
ICE "get ... in set"? or or do I have to
iterate and store values for later
comparision? In other words: what is the
best or recommended workflow to compare
single point data with global point data?
Question #2: any nodes that resemble a
fCurve node, like we have in ICE? if not,
what is the alternative?
and finally, I can see this list is
becoming more and more houdini-esque than
ever..but, what is the best place to ask
beginner questions like the above?
houdini foruns, houdini list, odForce...
thanks!
2017-03-06 14:23 GMT+01:00 Fabricio
Chamon <xsiml...@gmail.com>:
Hi, I'm slowly getting into houdini
and this is my first attempt to port
a really simple ridged fractal
deformer made in ICE to houdini
(using pointvop).
Question #1: are there any
equivalents to ICE "get ... in set"?
or or do I have to iterate and store
values for later comparision? In
other words: what is the best or
recommended workflow to compare
single point data with
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