'Extract content' simultaneously

[tomwyn]

HI all,

 

My question: Can I 'extract contents' of multiple alembic container nodes simultaneously?

 

I have an imported alembic geometry sequence, and I want to group certain areas of the geo for use in various dops sims.

 

I loaded the alembic as 'Houdini geometry', however, inside the alembic at obj level, I have hundreds of individual alembic 'container' nodes that have individual Houdini geo nodes inside them.

 

This would be fine if it was just a few nodes, as I can obviously rmb > extract contents. However this doesn't work for me on multiple nodes.

 

Is there some-kind of shelf tool/script I can run? Or a certain check box on alembic import I may have missed that will give me 100% Houdini geo nodes?

 

Sorry if this is a bit of a layperson question - One of the pitfalls of being self taught

 

Thanks!

 

(H 14.0.201.13)

 

 

[gui]

well, I had the same problema and created a shelf tool. Just create a new tool and paste this script. Hope it still works.

 

-----

 

 

import hou

 

# selection functions

 

# this one selects node objs and textures and return the selection

def importer_selectNodeObjsNTextures():

 

    import toolutils

 

    # Get active sceneViewer

    sViewer = toolutils.sceneViewer()  

 

    # Ask user select nodes to switch tex

    selection = sViewer.selectObjects('Select nodes to switch tex, press enter to confirm', allowed_types=('geo',), allow_multisel=True)

 

    # Check that selection wasnt empty

    if selection == ():

        hou.ui.displayMessage('Nothing selected, terminating tool', severity=hou.severityType.Error)

        return (None)

 

    selection[0].setSelected(0, True)

 

     # Ask user select the parent no to generate the inverse matrix

    texture = hou.ui.selectNode()

    #parent = sViewer.selectObjects('Select parent, press enter to confirm', allowed_types=('*',), allow_multisel=False)

 

    # Check that selection wasnt empty

    if texture == ():

        hou.ui.displayMessage('Nothing selected, terminating tool', severity=hou.severityType.Error)

        return (None)

 

    return (selection, texture)

 

# this one select node objs and return the selection

def importer_selectNodeObjs():

 

    import toolutils

 

    # Get active sceneViewer

    sViewer = toolutils.sceneViewer()

 

    # Ask user select nodes

    selection = sViewer.selectObjects('Select nodes, press enter to confirm', allowed_types=("geo",), allow_multisel=True)

 

    # Check that selection wasnt empty

    if selection == ():

        hou.ui.displayMessage('Nothing selected, terminating tool', severity=hou.severityType.Error)

        return (None)

 

    return (selection)

 

 

def importer_copyObjs(selection):

 

    if selection[0].parent() != None:

        geoName = 'NEW_' + selection[0].parent().name()

    else:

        geoName = 'newGeo'

 

    newGeo = hou.node('/obj').createNode('geo', geoName)

    newGeo.setColor(hou.Color((1, 1, 0)))

    newGeo.children()[0].destroy()

 

    # iterates throught selection to find for 'alembic' nodes and outputs a list with these nodes

    oldList = selection

    loop = 1

    while loop == 1:

        outputList = []

        alembicNum = 0

        for obj in oldList:

            childNum = len(obj.children())

            if childNum > 0:

                for child in obj.children():

                    outputList.append(child)

                    if child.type().name() == 'alembic':

                        alembicNum+=1

            if obj.type().name() == 'alembic':

                outputList.append(obj)

                alembicNum+=1

        oldList = outputList

        if len(outputList) == 0:

            print 'No alembic nodes in the selection'

            return

        if len(outputList) > 0 and len(outputList) == alembicNum:

            loop = 0

 

    for sopFile in outputList:

        geo = sopFile.parent()            

        grpNode = sopFile.createOutputNode('group', geo.name())

        grpNode.parm('crname').set(geo.name())

        xform = geo.worldTransform()

        xformNode = grpNode.createOutputNode('xform', 'parent_xform')

        xformNode.parmTuple('t').set(xform.extractTranslates('srt'))

        xformNode.parmTuple('r').set(xform.extractRotates('srt'))

        xformNode.parmTuple('s').set(xform.extractScales('srt'))

        xformNode.parmTuple('p').deleteAllKeyframes()

        xformNode.parmTuple('p').set((0, 0, 0))

 

        #grpNode.setDisplayFlag(1)

        #grpNode.setRenderFlag(1)

 

        hou.copyNodesToClipboard([grpNode, sopFile, xformNode])

        hou.pasteNodesFromClipboard(newGeo)

 

        grpNode.destroy()

        xformNode.destroy()

    

    # connect all groups to a merge node

 

    mergeAll = newGeo.createNode('merge')

    i = 0

    

    for child in newGeo.children():

        if child.type().name() == 'xform':

            mergeAll.setInput(i, child)

            i+=1

    

    mergeAll.setDisplayFlag(1)

    mergeAll.setRenderFlag(1)

 

    outputGeo = mergeAll.createOutputNode('rop_geometry', 'Output_geo')

    

    return outputGeo

 

 

 

 

importer_copyObjs(importer_selectNodeObjs())

[tomwyn]

Hey gui,

 

Thanks so much for that! It doesn't work straight out of the box, but certainly enough here for me to get my chops around & get something going!

 

[gui]

Hey gui,

 

Thanks so much for that! It doesn't work straight out of the box, but certainly enough here for me to get my chops around & get something going!

 

 

What doesnt work? If you can share some hip, I will fix it.