Houdini Python Cookbook - Revision history

Admin at 19:45, 25 September 2026

2026-09-25T19:45:41Z

← Older revision		Revision as of 19:45, 25 September 2026
Line 66:		Line 66:
	node = hou.pwd()		node = hou.pwd()
	geo = node.geometry()		geo = node.geometry()
			geo.addAttrib(hou.attribType.Prim, 'path', '')
	dir ='/path/to/geo/'		dir ='/path/to/geo/'
	for filename in os.listdir(dir) :		for filename in os.listdir(dir) :
Line 72:		Line 72:
	pr = geo.createPacked('PackedDisk')		pr = geo.createPacked('PackedDisk')
	pr.setIntrinsicValue('unexpandedfilename', dir+filename)		pr.setIntrinsicValue('unexpandedfilename', dir+filename)
			pr.setAttribValue('path', dir+filename)
			#pr.setIntrinsicValue('viewportlod', 'centroid')
			#pr.setIntrinsicValue('viewportlod', 'hidden')
	pr.setIntrinsicValue('viewportlod', 'box')		pr.setIntrinsicValue('viewportlod', 'box')
	</syntaxhighlight>		</syntaxhighlight>

2026-09-25T19:29:21Z

← Older revision		Revision as of 19:29, 25 September 2026
Line 54:		Line 54:
	geo.addAttrib(hou.attribType.Point, 'file', '')		geo.addAttrib(hou.attribType.Point, 'file', '')

	dir ='C:/~~Users~~/~~john/Desktop/New folder~~/geo/'		dir ='/path/to/geo/'
	for filename in os.listdir(dir) :		for filename in os.listdir(dir) :
	if filename.endswith('.bgeo.sc') :		if filename.endswith('.bgeo.sc') :

2026-09-25T19:19:42Z

@@ Line 59: / Line 59: @@
          pt = geo.createPoint()
          pt.setAttribValue('file', dir+filename)
 </syntaxhighlight>

2026-09-24T21:37:44Z

← Older revision		Revision as of 21:37, 24 September 2026
Line 52:		Line 52:
	node = hou.pwd()		node = hou.pwd()
	geo = node.geometry()		geo = node.geometry()
	geo.addAttrib(hou.attribType.Point, "file", "")		geo.addAttrib(hou.attribType.Point, 'file', '')

	dir ='/~~path~~/to/~~dir~~/'		dir ='C:/Users/john/Desktop/New folder/geo/'
	for f in os.listdir(dir) :		for filename in os.listdir(dir) :
	if f.endswith('.bgeo.sc') :		if filename.endswith('.bgeo.sc') :
	pt = geo.createPoint()		pt = geo.createPoint()
	pt.setAttribValue('file', dir+f)		pt.setAttribValue('file', dir+filename)
	</syntaxhighlight>		</syntaxhighlight>

2026-09-24T21:30:26Z

@@ Line 44: / Line 44: @@
 <syntaxhighlight lang='Python'>
 hou.node('/obj/asset_stitching/blast28').geometry().prims()[0].intrinsicValue('transform')
 </syntaxhighlight>

2026-02-20T19:55:30Z

← Older revision		Revision as of 19:55, 20 February 2026
Line 38:		Line 38:
	import importlib		import importlib
	importlib.reload(module)		importlib.reload(module)
			</syntaxhighlight>


			Get the transform of a specific prim
			<syntaxhighlight lang='Python'>
			hou.node('/obj/asset_stitching/blast28').geometry().prims()[0].intrinsicValue('transform')
	</syntaxhighlight>		</syntaxhighlight>

2022-08-16T13:12:40Z

← Older revision		Revision as of 13:12, 16 August 2022
Line 1:		Line 1:
			[https://github.com/kiryha/Houdini/wiki/python-for-artists Python for Artists]

	Force the entire scene to cook (all nodes)		Force the entire scene to cook (all nodes)
	<syntaxhighlight lang='Python'>		<syntaxhighlight lang='Python'>

2022-08-15T09:05:09Z

← Older revision		Revision as of 09:05, 15 August 2022
Line 20:		Line 20:
	</syntaxhighlight>		</syntaxhighlight>

	List all the environment variables		List all the [https://jurajtomori.wordpress.com/2018/01/15/houdini-tip-taking-advantage-of-environment-variables/ environment variables]
	<syntaxhighlight lang='Python'>		<syntaxhighlight lang='Python'>
	import os		import os

2022-08-13T08:54:52Z

← Older revision		Revision as of 08:54, 13 August 2022
Line 30:		Line 30:
	<syntaxhighlight lang='Python'>		<syntaxhighlight lang='Python'>
	hou.text.incrementNumberedString( hou.getenv('HIPNAME') )		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>

2022-08-10T09:19:41Z

← Older revision		Revision as of 09:19, 10 August 2022
Line 25:		Line 25:
	for e in os.environ:		for e in os.environ:
	print(e, os.environ[e])		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>		</syntaxhighlight>