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Found 381 posts.

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Technical Discussion » hou.ui.display , ask me again please !!!!

User Avatar
vbk!!!
383 posts
Offline
 July 31, 2023 10:43:59
Hello,

I wrote this code :

sbtn = hou.ui.displayCustomConfirmation('Do you want it ', buttons=('Yes','No'), title='ActionZ')
if sbtn==0:
    print('aaa')
if sbtn==1:
    print('bbb')

The window came with title, buttons and a toggle labelled 'Don't ask me again'
Of course I switched on the toggle to test and now there is no popup anymore, even after a relaunch.

How Can I get my window back ?
Is it possible to eliminate this toggle ?

Thanks for your help !
Edited by vbk!!! - July 31, 2023 10:44:47
See full post 

Technical Discussion » Issue with PyGithub install

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vbk!!!
383 posts
Offline
 July 31, 2023 10:35:26
I gave up on PyGitHub.
I use the REST API now
https://docs.github.com/fr/rest?apiVersion=2022-11-28 [docs.github.com]
See full post 

Technical Discussion » Issue with PyGithub install

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vbk!!!
383 posts
Offline
 July 25, 2023 10:11:00
Hello,

I try to install PyGithub packages to hython via pip .
After install when I test to import the module, I get this error :

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\__init__.py", line 58, in <module
>
    from github import Auth
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\Auth.py", line 32, in <module>
    from github.InstallationAuthorization import InstallationAuthorization
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\InstallationAuthorization.py", li
ne 27, in <module>
    import github.NamedUser
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\NamedUser.py", line 40, in <modul
e>
    import github.Event
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\Event.py", line 33, in <module>
    import github.Organization
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\Organization.py", line 50, in <mo
dule>
    import github.Repository
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\Repository.py", line 173, in <mod
ule>
    import github.PublicKey
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\github\PublicKey.py", line 34, in <modul
e>
    from nacl import encoding, public
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\nacl\public.py", line 16, in <module>
    import nacl.bindings
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\nacl\bindings\__init__.py", line 58, in 
<module>
    from nacl.bindings.crypto_core import (
  File "C:\Houdini19.5.564\python39\lib\site-packages-forced\shiboken2\files.dir\shibokensuppo
rt\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Houdini19.5.564\python39\lib\site-packages\nacl\bindings\crypto_core.py", line 21, 
in <module>
    has_crypto_core_ed25519 = bool(lib.PYNACL_HAS_CRYPTO_CORE_ED25519)
AttributeError: cffi library '_sodium' has no function, constant or global variable named 'PYN
ACL_HAS_CRYPTO_CORE_ED25519'

It seems PyNaCl make a mess.

I try on window10 , houdini 19.5.564

Did anyone try the same thing ?
Does it work ?
On Linux maybe ?

Any tips is welcome !
See full post 

PDG/TOPs » wedgeindex and multiple Topnets

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vbk!!!
383 posts
Offline
 Jan. 3, 2022 10:38:19
Hello,

I have 2 topnets with one wedge node in each.
How to know from which wedge node is referred the @wedgeindex attribute ?
See full post 

Technical Discussion » HQUEUE and "mutlisim"

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vbk!!!
383 posts
Offline
 Dec. 10, 2019 06:27:06
Hello,

I need to simulate flip ocean and whitewater. I need 4 substeps ( at least ) for the sim. I have a limited disk space.
That said , I started to setup a ropnetwork like shown in the picture.




The fluid_result geoRop and the wwater_result geoRop are simulated together frame by frame.


How can I obtain the same behavior (fluid_result:frame1 wwater_result:frame1 fluid_result:frame2 wwater_result:frame2) via HQUEUE ?

Thanks for your help


P.S. : for now, my only idea is to merge my 2 sim results in SOP to send only one node on farm …
Edited by vbk!!! - Dec. 10, 2019 06:43:59
See full post 

Technical Discussion » fetch contraint geometry from dops

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vbk!!!
383 posts
Offline
 Sept. 17, 2019 09:03:28
what kind of sim ?
See full post 

Technical Discussion » Vellum : question about ConstraintGeometry

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vbk!!!
383 posts
Offline
 Sept. 17, 2019 06:03:37
Hello,

I made a simple setup where the geometry and the constraint have the same point order and prim order in sop.
When I run the sim in dopnet, the prim order of the constraint changes.

I don't understand why . Can someone explain that to me ?

Note, the point order is still the same.


thanks for your help.


Vincent
See full post 

Technical Discussion » Odd gather node test ...

User Avatar
vbk!!!
383 posts
Offline
 Sept. 3, 2019 09:40:38
Perfect
Thanks for your help
See full post 

Technical Discussion » Odd gather node test ...

User Avatar
vbk!!!
383 posts
Offline
 Sept. 2, 2019 09:51:44
Hello,

I have question about gather loop node.
In my test , I am trying to gather position of an object, horizontal torus, to a horizontal grid.



I don't understand the result : You can see in the front of the picture the gather reads negative Y position. This result changes regarding the camera incidence.
Is it normal ?

Thanks for your help.
Edited by vbk!!! - Sept. 2, 2019 10:07:32
See full post 

Technical Discussion » displacement and motion blur

User Avatar
vbk!!!
383 posts
Offline
 July 24, 2019 12:41:23
Hello,

I am playing with Mantra's shaders. It seems the displacement is not recognize by the motion blur.
Can someone confirm ?

Thanks

Vincent
See full post 

Technical Discussion » Increment problem reading back files !!!

User Avatar
vbk!!!
383 posts
Offline
 May 15, 2019 09:38:07
hi,
i have a problem with $FF and read back file from disk.
I set an increment like 0.125. The recorded files are like so : ‘myfile_ 1.125’ , ‘myfile_1.250’ , ‘myfile_1.5’ …etc …
When I use $FF, houdini give name like this : ‘myfile_1.125000003’ and then find no corresponding files.
How can I read back my files ?
thx for your help
See full post 

Technical Discussion » Collision activation

User Avatar
vbk!!!
383 posts
Offline
 March 30, 2018 04:15:19
yeah efficient but not very elegant.
I wiil do that if I can't find another way
Edited by vbk!!! - March 30, 2018 04:33:47
See full post 

Technical Discussion » Collision activation

User Avatar
vbk!!!
383 posts
Offline
 March 29, 2018 10:17:07
Hello,

I have a flip simulation colliding with 2 static objects via static solver.
I want desactivate collision from a specific frame.

How can I do that ?

thanks for your help.
See full post 

Houdini Engine for Maya » Engine issue with FLIP solver

User Avatar
vbk!!!
383 posts
Offline
 March 27, 2018 09:22:19
to answer your question :

regular playback
play every frame
playback by 1
runupToCurrentTime off
no other dynamics
Evaluation mode Parallel
See full post 

Houdini Engine for Maya » Engine issue with FLIP solver

User Avatar
vbk!!!
383 posts
Offline
 March 26, 2018 12:16:27
hi Juliap,

Sorry for the late reply.

Finally , following your explanation, we manage to simulate at a given frame, syncing the asset at the startframe of the sim and adding an expression to the Nucleus startframe accordingly.

The last tests we made showed us a new issue.
We can't use the substeps of the dopnet properly. In Maya , it changes the sim but we notice the steps are more visible when the step is high (!).

What's your opinion about it ?
See full post 

Houdini Engine for Maya » Engine issue with FLIP solver

User Avatar
vbk!!!
383 posts
Offline
 March 22, 2018 11:06:34
oh …
it's seems i Have to set the nulceus correctly to control the start frame.
Is it right ?
See full post 

Houdini Engine for Maya » Engine issue with FLIP solver

User Avatar
vbk!!!
383 posts
Offline
 March 22, 2018 10:50:10
Hello all !

I am trying to make an asset to simulate flip fluid in Maya
It doesn't work when the sim start at a frame greater than 1 . The maya console return this message :

QObject::startTimer: Timers cannot be started from another thread
QObject::killTimer: Timers cannot be stopped from another thread


It's seems the solver compute something but is unable to output it.
Is it possible to start sim at another frame than the first one within HouEngine?

Thanks for or time,


Vincent
See full post 

Technical Discussion » Pyro Solver and Gas Released

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vbk!!!
383 posts
Offline
 May 16, 2017 12:01:32
Hello !

I am test explosion in pyro. In the combustion tab , I wonder how to Gas Released parameter based on attribute, with a custom field maybe.

Thanks for your help

Vincent
See full post 

Technical Discussion » polygon sphere to "cage"

User Avatar
vbk!!!
383 posts
Offline
 March 13, 2017 19:18:49
Hi,

I have a polygon sphere and I try to remove its faces and then make two points poly in place of the old edges.
The polySpline sop doesn't work fine.
I am trying in wrangle but , in my actual wrangle, the 2points are doubled and I can't figure how to script to avoid that.

int myNeigh[] = neighbours(0,@ptnum);
int myPrims[] = pointprims(0,@ptnum);
foreach (int j; pointprims(0,@ptnum)){
    removeprim(0,j,0);
}
foreach (int i; myNeigh){
    int newPr =addprim(0,"polyline"); 
    addvertex(0,newPr,i);
    addvertex(0,newPr,@ptnum);
}

The code doesn't remember the last creations and then double it …

Any help is welcome

Vincent
See full post 

Technical Discussion » pyro sim gives "empty" volumes

User Avatar
vbk!!!
383 posts
Offline
 March 1, 2017 07:54:24
Hello,
I reconstructed a density grid and vel grid from particles with raster SOp. I can see them in the viewport.
When I try to run a pyro sim with them, pyro cook and give 4 volume primitives but I can't see anything in it . It look s strange to me since pyro solver compute something and the Gas resize works too !
Any clue ?
See full post 
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