Useful - Revision history

Admin at 21:33, 12 March 2024

2024-03-12T21:33:50Z

← Older revision		Revision as of 21:33, 12 March 2024
Line 1:		Line 1:
	<syntaxhighlight lang='python'>		<syntaxhighlight lang='python'>
	~~'''~~Python parameter expressions~~'''~~		# Python parameter expressions for translation X, Y and Z components
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[2]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[2]
			# Python parameter expressions for roatation X, Y and Z components
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[0]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[0]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[1]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[1]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[2]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[2]
			# Python parameter expressions for scale X, Y and Z components
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[0]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[0]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[1]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[1]

Admin at 21:33, 12 March 2024

2024-03-12T21:33:06Z

← Older revision		Revision as of 21:33, 12 March 2024
Line 1:		Line 1:
	<syntaxhighlight lang='python'>		<syntaxhighlight lang='python'>
	''Python parameter expressions''		'''Python parameter expressions'''
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]

Admin at 21:32, 12 March 2024

2024-03-12T21:32:57Z

← Older revision		Revision as of 21:32, 12 March 2024
Line 1:		Line 1:
	<syntaxhighlight lang='python'>		<syntaxhighlight lang='python'>
			''Python parameter expressions''
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]
	hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]		hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]

Admin at 21:32, 12 March 2024

2024-03-12T21:32:15Z

← Older revision		Revision as of 21:32, 12 March 2024
Line 1:		Line 1:
			<syntaxhighlight lang='python'>
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[0]
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[1]
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractTranslates()[2]

			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[0]
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[1]
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractRotates()[2]

			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[0]
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[1]
			hou.Matrix4(hou.node(hou.ch('spare_input0')).geometry().attribValue('transform')).extractScales()[2]
			</syntaxhighlight>

	flbk.py ➔		flbk.py ➔
	<syntaxhighlight lang='python'>		<syntaxhighlight lang='python'>

Admin at 13:18, 12 December 2022

2022-12-12T13:18:14Z

← Older revision		Revision as of 13:18, 12 December 2022
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	print('Flipbook Finished: ' + mp4_output_path.strip('"'))		print('Flipbook Finished: ' + mp4_output_path.strip('"'))

			</syntaxhighlight>

			ffmpeg combine all .mkv files in a dir ➔
			<syntaxhighlight lang='python'>
			ffmpeg -f concat -safe 0 -i <(find . -type f -name '*.mkv' -printf "file '$PWD/%p'\n" \| sort) -c copy $PWD/output.mkv
	</syntaxhighlight>		</syntaxhighlight>

Admin at 12:38, 6 December 2022

2022-12-06T12:38:39Z

← Older revision		Revision as of 12:38, 6 December 2022
Line 1:		Line 1:
			flbk.py ➔
	<syntaxhighlight lang='python'>		<syntaxhighlight lang='python'>
	import hou, toolutils, os, subprocess, shlex, time, shutil		import hou, toolutils, os, subprocess, shlex, time, shutil

Admin at 09:20, 6 December 2022

2022-12-06T09:20:36Z

← Older revision		Revision as of 09:20, 6 December 2022
Line 60:		Line 60:

	jpeg_output_path = '"' + jpeg_output_path.replace('$F4', '%04d') + '"'		jpeg_output_path = '"' + jpeg_output_path.replace('$F4', '%04d') + '"'
	convert2mov_command ='/usr/local/bin/ffmpeg'		#convert2mov_command ='/usr/local/bin/ffmpeg'
	#convert2mov_command ='ffmpeg'		convert2mov_command ='ffmpeg'
	convert2mov_command+=' -start_number '+str( int(flbk_settings.frameRange()[0]) )		convert2mov_command+=' -start_number '+str( int(flbk_settings.frameRange()[0]) )
	convert2mov_command+=' -framerate '+str(hou.fps())		convert2mov_command+=' -framerate '+str(hou.fps())

Admin: Created page with " import hou, toolutils, os, subprocess, shlex, time, shutil def main(): # Define the directory to store flipbooks. In this case, parent di..."

2022-12-06T09:19:50Z

Created page with "<syntaxhighlight lang='python'> import hou, toolutils, os, subprocess, shlex, time, shutil def main(): # Define the directory to store flipbooks. In this case, parent di..."

New page

<syntaxhighlight lang='python'>
import hou, toolutils, os, subprocess, shlex, time, shutil

def main():
# Define the directory to store flipbooks. In this case, parent dir of folder containing the hip_file_path (same as $HIP/../ )
flipbook_dir = os.path.join(os.path.abspath( os.path.join(hou.hipFile.path(), os.pardir, os.pardir) ), 'flip')
if not os.path.exists(flipbook_dir):
print('Creating directory: '+flipbook_dir)
os.makedirs(flipbook_dir)
jpeg_output_path = os.path.join(flipbook_dir, hou.getenv('HIPNAME') + os.path.sep + '$F4.jpeg')

# Save a backup of the scene file to the flipbook dir
tmp_backup_file = hou.hipFile.saveAsBackup()
date_time = time.strftime("%Y_%m_%d__%H.%M.%S")
backup_file_path = os.path.join(flipbook_dir, hou.getenv('HIPNAME'), date_time+"_"+hou.hipFile.basename())
backup_file_path = str(backup_file_path)
if not os.path.exists(os.path.dirname(backup_file_path)):
print('Creating directory: '+os.path.dirname(backup_file_path))
os.makedirs(os.path.dirname(backup_file_path))
# Rename and move the tmp_backup_file file to our destination path and filename
shutil.move(tmp_backup_file, backup_file_path)

# Don't modifiy the existing settings (make a copy)
flbk_settings = toolutils.sceneViewer().flipbookSettings().stash()
# If OCIO is enabled don't apply gamma
if toolutils.sceneViewer().usingOCIO():
flbk_settings.overrideGamma(True)
flbk_settings.overrideGamma(1.0)
# Set the output path for flipbook frames
flbk_settings.output(jpeg_output_path)
if hou.licenseCategory() == hou.licenseCategoryType.Apprentice:
flbk_settings.useResolution(1)
flipbook_options.resolution((1280,720))
else:
# Disable the resolution override
flbk_settings.useResolution(0)

if flbk_settings.sessionLabel() is '':
flbk_settings.sessionLabel( str(os.getpid()) )

start_timer = time.perf_counter()
seq_profile = hou.PerfMonProfile
#global seq_profile
seq_profile = hou.perfMon.startProfile("Seq")

# Keeps a history file of all the flipbooks performed in your user dir
history_file = open(os.environ['HOME']+'/flbk.txt', 'a+')
history_file.write(os.path.splitext(backup_file_path)[0]+'.mp4')
history_file.write('\n')
history_file.close()

# Perform the flipbook
toolutils.sceneViewer().flipbook(viewport=None, settings=flbk_settings, open_dialog=False)

seq_profile.stop()
seq_profile.exportAsCSV(os.path.splitext(backup_file_path)[0]+".csv")
# these .hperf files were too big
#seq_profile.save(os.path.splitext(backup_file_path)[0]+".hperf")

jpeg_output_path = '"' + jpeg_output_path.replace('$F4', '%04d') + '"'
convert2mov_command ='/usr/local/bin/ffmpeg'
#convert2mov_command ='ffmpeg'
convert2mov_command+=' -start_number '+str( int(flbk_settings.frameRange()[0]) )
convert2mov_command+=' -framerate '+str(hou.fps())
convert2mov_command+=' -apply_trc iec61966_2_1'
convert2mov_command+=' -i '+jpeg_output_path
convert2mov_command+=' -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2"'
convert2mov_command+=' -f mp4 -vcodec libx264 -pix_fmt yuv420p'
convert2mov_command+=' -r '+str(hou.fps())
convert2mov_command+=' -crf 22'
convert2mov_command+=' -metadata title="'+hou.getenv('HIPNAME')+'"'
convert2mov_command+=' -metadata comment="'
convert2mov_command+='SOURCE SCENE: '+hou.hipFile.path()+'\n'
convert2mov_command+='BACKUP SCENE: '+backup_file_path+'\n'
convert2mov_command+='VERSION: '+hou.applicationVersionString()+'\n'
convert2mov_command+='PLATFORM: '+hou.applicationPlatformInfo()+'\n'
convert2mov_command+='OS: '+os.environ['HOUDINI_OS']+'\n'
convert2mov_command+='USER: '+os.environ['USER']+'\n'
convert2mov_command+='USERNAME: '+hou.userName()+'\n'
convert2mov_command+='HOSTNAME: '+hou.machineName()+'\n'
convert2mov_command+='EXECUTED ON: '+date_time+'\n'
convert2mov_command+='EXECUTED IN: '+str(round(time.perf_counter() - start_timer, 2))+' seconds'
convert2mov_command+='"'
convert2mov_command+=' -x264opts colormatrix=bt709'
mp4_output_path = '"' + os.path.splitext(backup_file_path)[0]+'.mp4' + '"'
convert2mov_command+=' '+mp4_output_path
try:
# The subprocess.run() function only exists in Python 3.5 and newer.
subprocess.run(shlex.split(convert2mov_command), shell=True, capture_output=True, text=True, check=True)
except:
# Support versions of Python older then 3.5
subprocess.Popen( shlex.split(convert2mov_command) ).wait()

# Remove the .jpegs generated by the flipbook
jpeg_output_path = jpeg_output_path.strip('"\'')
for file in [file for file in os.listdir(os.path.dirname(jpeg_output_path)) if file.endswith('.jpeg')]:
os.remove( os.path.join(os.path.dirname(jpeg_output_path), file) )
print('Flipbook Finished: ' + mp4_output_path.strip('"'))

</syntaxhighlight>