kunz Difference between revisions of "Houdini Python Cookbook"

Difference between revisions of "Houdini Python Cookbook"

From kunz
(Created page with "<syntaxhighlight lang='Python'> for node in hou.node("/").allSubChildren(): node.cook(force=True) </syntaxhighlight>")
 
 
(9 intermediate revisions by the same user not shown)
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[https://github.com/kiryha/Houdini/wiki/python-for-artists Python for Artists]
Force the entire scene to cook (all nodes)
<syntaxhighlight lang='Python'>
<syntaxhighlight lang='Python'>
for node in hou.node("/").allSubChildren():
for node in hou.node("/").allSubChildren():
     node.cook(force=True)
     node.cook(force=True)
</syntaxhighlight>
Print the full path of the current Houdini scene
<syntaxhighlight lang='Python'>
print(hou.hipFile.path())
</syntaxhighlight>
Get the version numbers in the filename
<syntaxhighlight lang='Python'>
hou.hscript('echo -n `opdigits($HIPNAME)`')
</syntaxhighlight>
What platform is Houdini running on?
<syntaxhighlight lang='Python'>
hou.applicationPlatformInfo()
</syntaxhighlight>
List all the [https://jurajtomori.wordpress.com/2018/01/15/houdini-tip-taking-advantage-of-environment-variables/ environment variables]
<syntaxhighlight lang='Python'>
import os
for e in os.environ:
    print(e, os.environ[e])
</syntaxhighlight>
Increment number at the end of a text string.  This is the algorithm used by Houdini to generate uniquely named child nodes inside a network.
<syntaxhighlight lang='Python'>
hou.text.incrementNumberedString( hou.getenv('HIPNAME') )
</syntaxhighlight>
Reload a module, useful if you make some changes to the module.
<syntaxhighlight lang='Python'>
import importlib
importlib.reload(module)
</syntaxhighlight>
</syntaxhighlight>

Latest revision as of 13:12, 16 August 2022

Python for Artists

Force the entire scene to cook (all nodes)

for node in hou.node("/").allSubChildren():
    node.cook(force=True)

Print the full path of the current Houdini scene

print(hou.hipFile.path())

Get the version numbers in the filename

hou.hscript('echo -n `opdigits($HIPNAME)`')

What platform is Houdini running on?

hou.applicationPlatformInfo()

List all the environment variables

import os
for e in os.environ:
    print(e, os.environ[e])

Increment number at the end of a text string. This is the algorithm used by Houdini to generate uniquely named child nodes inside a network.

hou.text.incrementNumberedString( hou.getenv('HIPNAME') )

Reload a module, useful if you make some changes to the module.

import importlib
importlib.reload(module)