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Retiming a curve There are many retiming options in Nuke but how do you retime tracking data or animation?The answer is actually very simple and can be used wherever you have an animation curve in your script. If you are using an OFlow node, called ‘OFlow1’, ...

Center Crop for Instagram: ffmpeg -i ParticleSensor.mp4 -vf "scale=(iw*sar)*max(1080/(iw*sar)\,1080/ih):ih*max(1080/(iw*sar)\,1080/ih), crop=1080:1080" ParticleSensor_ig.mp4    

first convert to 256 convert input.png -resize 256x256 output.png last convert to icns png2icns output.icns input.png

"""Finds and creates nodes for file sequences in an entire directory tree""" # This has the user select a folder, then creates Read nodes # for all files and sequences under that folder # lewis@lewissaunders.com 03/2011 import os, nuke, re, time from...

Get the file path from selected nodes: sel=nuke.selectedNodes() for x in sel: print(x.knob("file").getValue())

def grabFrames(self): import os plate = self.parm("backplate").eval() if not plate: framex = self.parm("frange1").eval() framey = self.parm("frange2").eval() else: flist = [x.split(".")[-2] for x in os.listdir(os....

import hou selected = hou.selectedNodes()[0] groups = [g.name() for g in selected.geometry().primGroups()] for i, name in enumerate(groups, 1): #make a split node split = selected.createOutputNode("blast") split.setName(name) ...

auto focus, get distance from object and camera: vlength(vtorigin(“/obj/geo1”, “/obj/cam1”))

divide points into 3 equal parts: i@part = floor(fit(rand(@ptnum+.258), 0, 1, 0, 2.9)); Nage replacement @nage = fit(@age,0,@life,0,1); Group from class: string grpname = sprintf("class_%d", i@class); setprimgroup(0, grpname, @primnum, 1); // use setpoin...

Shelf script to bake camera form Alembic camera in scene. Must select the child camera in the alembic sop. import hou obj = hou.node("/obj") ocam = hou.node(hou.ui.selectNode(node_type_filter=hou.nodeTypeFilter.ObjCamera)) ver = ocam.parent().parent()....

If the pscale is greater than .4 then set it to .2, if not set it to its current pscale @pscale = @pscale>.4?.2:@pscale    

OGV: in_old = "path_to_vid.mp4" new = ${in_old%.*}.ogv ffmpeg -i $in_old -codec:v libtheora -qscale:v 6 -codec:a libvorbis -qscale:a 6 $new MP4: ffmpeg -i Web*.mov -an \ -vf "scale=1920:-2:flags=lanczos,fps=30" \ -c:v libx264 -preset slow -crf 22 \ ...

for i in *.mov; do name=`echo "$i" | cut -d'.' -f1` echo "$name" ffmpeg -i "$i" "${name}.mp4" done  

1. transforms to attribute matrix: p@orient = quaternion(3@transform); v@scale = cracktransform(0,0,2,set(0.0.0). 3@transform); 2. rotate packed fracture based on point + distance: vector p1= set(@P.x, @P.y, @P.z); vector crack1 = point(1, "P", 0); v...

This script should be added to a button on a node (thats why it's funnyily formated)   import _alembic_hom_extensions as ahe; import hou; anode = hou.pwd(); cam = anode.parm("camera").eval(); fpath = hou.node(cam).parm("fileName"); ver = fpath.eval().split("...

This is how a button on a non-adminned node needs to be laid out: import hou (probably not needed) ; do something ;  This grabs frame range from supplied alembic camera, updates names, etc: import _alembic_hom_extensions as ahe; import hou; anode = hou....

Intel example command: ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -i "${invid}" -codec:v h264_vaapi ${invid%.}_testHW.mp4

convert in.pdf +append out%d.png sudo apt install imagemagick If convert is broken, update policy: # Open the file sudo nano /etc/ImageMagick-6/policy.xml # find and edit the line <policy domain="coder" rights="none" pattern="PDF" /> # to : <polic...

import hou nodes = hou.selectedNodes() topnet = hou.node("/obj/topnet1") if not topnet: topnet = hou.node("/obj").createNode("topnet") topnet.setName("topnet1") for x in nodes: name = x.name()+"_"+str(x.parent()) fstart = x.parm("f1")...

  import hou; anode = hou.pwd(); start = anode.parm("framemin").eval(); end = anode.parm("framemax").eval(); hou.playbar.setFrameRange(start, end); hou.playbar.setPlaybackRange(start, end)