Houdini Python Temp - Revision history

Bernie: /* Network Box Auto Text */

2025-07-08T14:10:13Z

Network Box Auto Text

@@ Line 5: / Line 5: @@
 <pre>
 import hou
-iterStickyNotes()
+test = True
 </pre>
 === Alembic Camera Timewarper ===
 This will extract any camera found in a given alembic archive node and copy it with a CHOP timewarp set to the start and endframe of the playbar

Bernie at 07:47, 7 July 2025

2025-07-07T07:47:02Z

← Older revision		Revision as of 09:47, 7 July 2025
Line 1:		Line 1:
			https://www.artstation.com/blogs/faitel/4W4Z/compile-opencv-with-cuda-support-for-python-in-houdini-on-windows-11

	=== Network Box Auto Text ===		=== Network Box Auto Text ===
	wip. sets edits a big caption for a network box (with a transparent big text sticky note)		wip. sets edits a big caption for a network box (with a transparent big text sticky note)

Bernie: /* Alembic Camera Timewarper */

2025-06-30T09:45:41Z

Alembic Camera Timewarper

← Older revision		Revision as of 11:45, 30 June 2025
Line 1:		Line 1:
			=== Network Box Auto Text ===
			wip. sets edits a big caption for a network box (with a transparent big text sticky note)

			<pre>
			print('test')
			import hou
			network = hou.ui.paneTabUnderCursor()
			networkpath = network.pwd().path()
			pos = network.cursorPosition()

			iterStickyNotes()
			for nb in hou.node(networkpath):
			print(nb)

			</pre>
	=== Alembic Camera Timewarper ===		=== Alembic Camera Timewarper ===
	This will extract any camera found in a given alembic archive node and copy it with a CHOP timewarp set to the start and endframe of the playbar		This will extract any camera found in a given alembic archive node and copy it with a CHOP timewarp set to the start and endframe of the playbar

Bernie: /* Alembic Camera Timewarper */

2024-04-16T08:31:44Z

Alembic Camera Timewarper

← Older revision		Revision as of 10:31, 16 April 2024
Line 1:		Line 1:
	=== Alembic Camera Timewarper ===		=== Alembic Camera Timewarper ===
	This will extract any camera found in a given alembic archive node and copy it with a CHOP timewarp set to the start and endframe of the playbar		This will extract any camera found in a given alembic archive node and copy it with a CHOP timewarp set to the start and endframe of the playbar
	TODO: cleanup code and make it as a def		TODO: cleanup code and make it as a def, do some error checking, make sur to warn the user if timeranges differ)
	<pre>		<pre>
	import hou		import hou
Line 7:		Line 7:


	abc = hou.~~node~~(~~'/obj/alembicarchive1'~~)		abc = hou.selectedNodes()[0] #expects an ABC archive
	startF,endF = abctr(abc.parm('fileName').eval())		startF,endF = abctr(abc.parm('fileName').eval())
	startF = startF * hou.fps()		startF = startF * hou.fps()
Line 32:		Line 32:

	fetch = chop.createNode('fetch', 'camera_channels_extra')		fetch = chop.createNode('fetch', 'camera_channels_extra')
	parms = {'nodepath':cam.path() , 'path':'aperture focal' , 'start':startF , 'end':endF , 'units':'frames'}		parms = {'nodepath':cam.path() , 'path':'aperture focal' , 'start':startF , 'end':endF , 'units':'frames' , 'range':'user'}
	for parm, value in parms.items():		for parm, value in parms.items():
	fetch.parm(parm).set(value)		fetch.parm(parm).set(value)
Line 44:		Line 44:

	kf = hou.Keyframe()		kf = hou.Keyframe()
	kf.setTime(rfstart/hou.fps())		kf.setTime((rfstart-1)/hou.fps())
	kf.setValue(rfstart)		kf.setValue(rfstart)
	warpcurve.parmTuple('value0')[0].setKeyframe(kf)		warpcurve.parmTuple('value0')[0].setKeyframe(kf)
	kf = hou.Keyframe()		kf = hou.Keyframe()
	kf.setTime(rfend/hou.fps())		kf.setTime((rfend-1)/hou.fps())
	kf.setValue(rfend)		kf.setValue(rfend)
	warpcurve.parmTuple('value0')[0].setKeyframe(kf)		warpcurve.parmTuple('value0')[0].setKeyframe(kf)
Line 69:		Line 69:
	export.parm('nodepath').set(newCam.path())		export.parm('nodepath').set(newCam.path())
	newCam.setPosition(chop.position()+hou.Vector2(0, - (index+1)))		newCam.setPosition(chop.position()+hou.Vector2(0, - (index+1)))
			newCam.setComment('Old: {}-{} ({}f)\nNew: {}-{} ({}f)'.format(str(int(startF)),str(int(endF)),str(int(endF-startF)), str(int(rfstart)),str(int(rfend)),str(int(rfend-rfstart))))
			newCam.setGenericFlag(hou.nodeFlag.DisplayComment,True)


	if selectedCams:		if selectedCams:
	chop.layoutChildren()		chop.layoutChildren()

	</pre>		</pre>

Bernie: /* Alembic Camera Timewrapper */

2024-04-15T23:04:57Z

Alembic Camera Timewrapper

← Older revision		Revision as of 01:04, 16 April 2024
Line 1:		Line 1:
	=== Alembic Camera ~~Timewrapper~~ ===		=== Alembic Camera Timewarper ===
			This will extract any camera found in a given alembic archive node and copy it with a CHOP timewarp set to the start and endframe of the playbar
			TODO: cleanup code and make it as a def
	<pre>		<pre>
	import hou		import hou

Bernie: /* Alembic Camera Timewrapper */

2024-04-15T23:02:42Z

Alembic Camera Timewrapper

← Older revision		Revision as of 01:02, 16 April 2024
Line 12:		Line 12:

	cameras = abc.recursiveGlob('*',filter=hou.nodeTypeFilter.ObjCamera)		cameras = abc.recursiveGlob('*',filter=hou.nodeTypeFilter.ObjCamera)
	selectedCams = hou.ui.selectFromList([camera.name() for camera in cameras], message='Select Cameras')		if len(cameras)>1:
			selectedCams = hou.ui.selectFromList([camera.name() for camera in cameras], message='Select Cameras')
			else:
			selectedCams = [0]
	if selectedCams:		if selectedCams:
	chop = abc.parent().createNode('chopnet',abc.name()+'_warpcams')		chop = abc.parent().createNode('chopnet',abc.name()+'_warpcams')
	chop.setPosition(abc.position()+hou.Vector2(2.5, 0))		chop.setPosition(abc.position()+hou.Vector2(2.5, 0))
	~~for cam in selectedCams:~~

	cam = cameras[~~cam~~]		for index in selectedCams:

			cam = cameras[index]

	object = chop.createNode('object', cam.name())		object = chop.createNode('object', cam.name())
Line 30:		Line 34:
	fetch.parm(parm).set(value)		fetch.parm(parm).set(value)

	~~wrapcurve~~ = chop.createNode("channel", 'time_warp_curve')		merge = chop.createNode('merge')
			merge.setInput(0,object)
			merge.setInput(1,fetch)

			warpcurve = chop.createNode('channel', 'time_warp_curve')
	rfstart, rfend = hou.playbar.frameRange()		rfstart, rfend = hou.playbar.frameRange()

Line 36:		Line 44:
	kf.setTime(rfstart/hou.fps())		kf.setTime(rfstart/hou.fps())
	kf.setValue(rfstart)		kf.setValue(rfstart)
	~~wrapcurve~~.parmTuple("value0").setKeyframe(kf)		warpcurve.parmTuple('value0')[0].setKeyframe(kf)
	kf = hou.Keyframe()		kf = hou.Keyframe()
	kf.setTime(rfend/hou.fps())		kf.setTime(rfend/hou.fps())
	kf.setValue(rfend)		kf.setValue(rfend)
	~~wrapcurve~~.parmTuple("value0").setKeyframe(kf)		warpcurve.parmTuple('value0')[0].setKeyframe(kf)

			warp = chop.createNode('warp')
			warp.parm('method').set('index')
			warp.parm('scaleindex').set(1)
			warp.setInput(0,merge)
			warp.setInput(1,warpcurve)

			export = chop.createNode('export')
			export.parm('channels').set('t[xyz] r[xyz] aperture focal')
			export.parm('path').set('t[xyz] r[xyz] aperture focal')
			export.setExportFlag(True)
			export.setAudioFlag(True)
			export.setDisplayFlag(True)
			export.setInput(0,warp)

			newCam = abc.parent().createNode('cam',cam.name()+'_warp')
			export.parm('nodepath').set(newCam.path())
			newCam.setPosition(chop.position()+hou.Vector2(0, - (index+1)))


			if selectedCams:
			chop.layoutChildren()

	</pre>		</pre>

Bernie: /* Alembic Camera Timewrapper */

2024-04-15T17:27:07Z

Alembic Camera Timewrapper

@@ Line 2: / Line 2: @@
 <pre>
 import hou
 abc = hou.node('/obj/alembicarchive1')
-chop = abc.parent().createNode('chopnet',abc.name()+'_warpcams')
+startF,endF = abctr(abc.parm('fileName').eval())
-chop.setPosition(abc.position()+hou.Vector2(2.5, 0))
+startF = startF * hou.fps()
 cameras = abc.recursiveGlob('*',filter=hou.nodeTypeFilter.ObjCamera)
 selectedCams = hou.ui.selectFromList([camera.name() for camera in cameras], message='Select Cameras')
 for cam in selectedCams:
      cam = cameras[cam]
 </pre>

Bernie: /* Alembic Camera Timewrapper */

2024-04-15T16:45:23Z

Alembic Camera Timewrapper

← Older revision		Revision as of 18:45, 15 April 2024
Line 5:		Line 5:
	chop = abc.parent().createNode('chopnet',abc.name()+'_warpcams')		chop = abc.parent().createNode('chopnet',abc.name()+'_warpcams')
	chop.setPosition(abc.position()+hou.Vector2(2.5, 0))		chop.setPosition(abc.position()+hou.Vector2(2.5, 0))

			cameras = abc.recursiveGlob('*',filter=hou.nodeTypeFilter.ObjCamera)
			selectedCams = hou.ui.selectFromList([camera.name() for camera in cameras], message='Select Cameras')
			for cam in selectedCams:
			cam = cameras[cam]

	</pre>		</pre>

	=== hdr generator ===		=== hdr generator ===
	<pre>		<pre>

Bernie: /* hdr generator */

2024-04-15T16:31:01Z

hdr generator

← Older revision		Revision as of 18:31, 15 April 2024
Line 1:		Line 1:
			=== Alembic Camera Timewrapper ===
			<pre>
			import hou
			abc = hou.node('/obj/alembicarchive1')
			chop = abc.parent().createNode('chopnet',abc.name()+'_warpcams')
			chop.setPosition(abc.position()+hou.Vector2(2.5, 0))

			</pre>
	=== hdr generator ===		=== hdr generator ===
	<pre>		<pre>

Bernie: /* Replace Node With Another */

2024-03-26T16:46:27Z

Replace Node With Another

@@ Line 1: / Line 1: @@
 === Replace Node With Another===
 Replace not X with Y
@@ Line 26: / Line 112: @@
      print(path)
 </pre>
 === After Effect Camera To Houdini (WIP) ===
 (unfinished, will try to make it more generic AE -> H)