Hello Houdini Masters

I am building a custom flip upres tool for fluid ,this way it can save a lots of RAM and I found the final results have more detail than original after meshing particles.

but I encounted a problem, the upres flip' boundary cannot get updated well, and I have no idea how to do that ?

can anybody have a look?

if SESI's engineers here can help that would be much appreciate.

files attached.

Hello masters,

how to emit spray like this picture ? its very clumpy.

any idea is welcome.

there's a bug with file merge sop,I add a file catch sop after it,then houdini will catch all frame buffer into only one file on disk

create guided ocean layer>distribute>loadslice>file catch reshow this issue.

plz look into this.

Hi Sesi

I wonder if this evening will be record and free for watch ?

http://www.sidefx.com/index.php?option=com_content&task=view&id=2298&Itemid=226 [sidefx.com]

some of this work really awesome. especially that sand flow which all commercial tool missing for decades….

awesome again geonak

I m stay with 10
11' file reader is unstable and always crash with my this project.
I want to upload the cache file then sesi may look into it,but really huge file size. :evil:

I found another bug and cybermax confirmed it
when I press ESC to interrupt the simulation,the bullet solver stays always interrupt,no re-cooking.

anyone else have the same pb? and could you SESI provide a debug solution why this happen?

cybermax
repair some bug and easier install on linux.

note:
This is for both, linux and win!!!
I change names *.cpp a *.h files, so Compiler creates new names for final dso, so delete old DSO before running houdini!

Hi cybermax

I think goldleaf mean unique entry name when add op table,not name of the source code.

void newSopOperator(OP_OperatorTable *table)
{
table->addOperator(new OP_Operator(
“bullet_transform”,
“bullet_transform”,
SOP_Transform::myConstructor,
SOP_Transform::myTemplateList,
2, // Min required sources
2, // Maximum sources
0));

goldleaf
What build of Houdini are you using? That's the only thing I can think might be an issue at the moment.

11.0.581 gcc4.2

goldleaf
I found those issues too, horizon1231 Fixing those let me compile (also added all of the other SOPs to the build.sh).

These are the issues I'm finding so far:

- crashes whenever I try and use just the bullet_solver sop by connecting objects and properties directly to a bullet_solver, rather than to your digital asset.
- crashes whenever I delete a bullet_solver, even with nothing connected to it
- opening the examples hipnc file crashes upon opening; only able to see it if I merge the file in with a new hip file
- no simple examples (for example, just a two constrained spheres dropping onto the ground) to help narrow down issues (tried opening old example file, but crashes immediately)

Is anyone else coming across these as well?

I've attached my crashlog file, to see if that helps, though I can't quite figure out what's going on. It would be good to make your classes and functions unique from Houdini's default ones, like the SOP_Transform, which should be SOP_btTransform, or something like that; also SolverDLL.h has lots of entries which might conflict as well.

And yes, thank you cybermax

mine is all working now

haven't see your log file. could u post a hip?

and suggestion to cybermax: any chance to make this ops with unique name next release

cybermax
As I promised … Linux version 64bit (gcc v4.4.3)
check readme.txt for install.

now Its time for fluids!!!

thanks for efforts!!!

haven't try it ,but it should be work with gcc4.2 ? not sure if your libBullet.a has dependency with houdini.gcc.4.4!!

update:
all compiled ok with gcc4.2 except Transform.cpp

change the line 133 “or” to something other fix the error.

and I find a little bug: I register this op as “BTransform” SOP, since with some error when open example, because there already a transform sop officially.

Thanks Cybermax !

and your version of h11 is gcc4.4 too? if not,that's the problem

wilkolak
@cybermax Great job with the plugin! I'm very impressed with your results.
I've seen in this topic that you will release plugin as source code + dll with your ‘secret stuff’. Will it be possible to compile the plugin (just the Bullet integration with Houdini) without your secret stuff dll?
For example: I'm on OS X and would like to use Bullet engine with Houdini but don't need anything more then Bullet offers. I know that you won't support Mac compilation so the additional dll won't be here on Mac. Would I be able to use just the Bullet engine?

PS When you will have working Linux version - making a Mac is very easy (in fact Linux Makefiles may in some cases work in Mac environment without changes). So I hope that you will find someone with Mac who you trust and who can compile it for you (I can ), so we a Mac users can also taste that sweet Bullet in Houdini.

PS2 There are ways to install OS X on a normal PC. As I know VMWare supports OS X as a guest operating system and making a Hackintosh is kinda easy if you know this [osx86.sojugarden.com] guide.

read back and keep this topic clean, I think this topic is for bullet technical discussion,if u want mac ver just pm him.

I have a complicated light rig want to export to maya with fbx format,when doing this houdini report a warning: unsupported attenuation type,my question is how to avoid this by setting the light's attenuation

ok I made a stupid error

I can't get the same result as Wolfwood said.

pls see the image.

the main prob is I cant get segment MB fx,and the propeller's corner isn't round.
I searched help card and odforce for this prob,still cant get it working.
for somebody who have same prob,see
http://forums.odforce.net/index.php?/topic/8228-multi-segment-motion-blur-shading-sampling/page__pid__54881__st__0&#entry54881 [forums.odforce.net]

this is the error report:

“No module named math”
“Traceback (most recent call last):
File \”<stdin>\“, line 2, in <module>
ImportError: No module named math
”
Traceback (most recent call last):
File “<string>”, line 3, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools
Error in sys.excepthook:
Traceback (most recent call last):
File “/usr/lib/python2.6/dist-packages/apport_python_hook.py”, line 38, in apport_excepthook
from apport.packaging_impl import impl as packaging
File “/usr/lib/python2.6/dist-packages/apport/__init__.py”, line 1, in <module>
from apport.report import Report
File “/usr/lib/python2.6/dist-packages/apport/report.py”, line 14, in <module>
import subprocess, tempfile, os.path, urllib, re, pwd, grp, os, sys
File “/usr/lib/python2.6/subprocess.py”, line 401, in <module>
import select
ImportError: No module named select

Original exception was:
Traceback (most recent call last):
File “<string>”, line 3, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/i3dclerk.py”, line 5, in <module>
import hou
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/ifdclerk.py”, line 5, in <module>
import hou
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/miclerk.py”, line 5, in <module>
import hou
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/ribclerk.py”, line 5, in <module>
import hou, sys
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
hbatch Version 11.0.579 (Compiled on 11/29/10)

and this is python -v in shell:

# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# /usr/lib/python2.6/site.pyc matches /usr/lib/python2.6/site.py
import site # precompiled from /usr/lib/python2.6/site.pyc
# /usr/lib/python2.6/os.pyc matches /usr/lib/python2.6/os.py
import os # precompiled from /usr/lib/python2.6/os.pyc
import errno # builtin
import posix # builtin
# /usr/lib/python2.6/posixpath.pyc matches /usr/lib/python2.6/posixpath.py
import posixpath # precompiled from /usr/lib/python2.6/posixpath.pyc
# /usr/lib/python2.6/stat.pyc matches /usr/lib/python2.6/stat.py
import stat # precompiled from /usr/lib/python2.6/stat.pyc
# /usr/lib/python2.6/genericpath.pyc matches /usr/lib/python2.6/genericpath.py
import genericpath # precompiled from /usr/lib/python2.6/genericpath.pyc
# /usr/lib/python2.6/warnings.pyc matches /usr/lib/python2.6/warnings.py
import warnings # precompiled from /usr/lib/python2.6/warnings.pyc
# /usr/lib/python2.6/linecache.pyc matches /usr/lib/python2.6/linecache.py
import linecache # precompiled from /usr/lib/python2.6/linecache.pyc
# /usr/lib/python2.6/types.pyc matches /usr/lib/python2.6/types.py
import types # precompiled from /usr/lib/python2.6/types.pyc
# /usr/lib/python2.6/UserDict.pyc matches /usr/lib/python2.6/UserDict.py
import UserDict # precompiled from /usr/lib/python2.6/UserDict.pyc
# /usr/lib/python2.6/_abcoll.pyc matches /usr/lib/python2.6/_abcoll.py
import _abcoll # precompiled from /usr/lib/python2.6/_abcoll.pyc
# /usr/lib/python2.6/abc.pyc matches /usr/lib/python2.6/abc.py
import abc # precompiled from /usr/lib/python2.6/abc.pyc
# /usr/lib/python2.6/copy_reg.pyc matches /usr/lib/python2.6/copy_reg.py
import copy_reg # precompiled from /usr/lib/python2.6/copy_reg.pyc
# /usr/lib/python2.6/sitecustomize.pyc matches /usr/lib/python2.6/sitecustomize.py
import sitecustomize # precompiled from /usr/lib/python2.6/sitecustomize.pyc
# /usr/lib/python2.6/dist-packages/apport_python_hook.pyc matches /usr/lib/python2.6/dist-packages/apport_python_hook.py
import apport_python_hook # precompiled from /usr/lib/python2.6/dist-packages/apport_python_hook.pyc
import encodings # directory /usr/lib/python2.6/encodings
# /usr/lib/python2.6/encodings/__init__.pyc matches /usr/lib/python2.6/encodings/__init__.py
import encodings # precompiled from /usr/lib/python2.6/encodings/__init__.pyc
# /usr/lib/python2.6/codecs.pyc matches /usr/lib/python2.6/codecs.py
import codecs # precompiled from /usr/lib/python2.6/codecs.pyc
import _codecs # builtin
# /usr/lib/python2.6/encodings/aliases.pyc matches /usr/lib/python2.6/encodings/aliases.py
import encodings.aliases # precompiled from /usr/lib/python2.6/encodings/aliases.pyc
# /usr/lib/python2.6/encodings/utf_8.pyc matches /usr/lib/python2.6/encodings/utf_8.py
import encodings.utf_8 # precompiled from /usr/lib/python2.6/encodings/utf_8.pyc
Python 2.6.2 (release26-maint, Apr 19 2009, 01:58:18)
on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
dlopen(“/usr/lib/python2.6/lib-dynload/readline.so”, 2);
import readline # dynamically loaded from /usr/lib/python2.6/lib-dynload/readline.so


ubuntu9.04 64bit.
what's wrong with my config?

this made me recall some deform scene.potentiality of deforming ocean surface

rafal
Check out the methods in UT_ValArray.h. For example, you can do something like that:

UT_Vector3Array VA;
for(…){
UT_Vector3 pos = ppt->getPos();
VA.append( pos );
}

thanks for response,ill look into.

this may works too ?
UT_Vector3Array VA;

for (a=0,pptgdp)->points().head(); a<Count; a++, pptgdp)->points().next(ppt))


{

UT_Vector3 pos = ppt->getPos();


VA=pos;
}

ok i solved 2nd problem,but dont know how to solve the 1st.
anyone could give a help?

long int Count = (long int)gdp->points().entries();

for (a=0,pptgdp)->points().head(); a<Count; a++, pptgdp)->points().next(ppt))