Forums Technical Discussion Getting alembic frame range as an attribute

Getting alembic frame range as an attribute

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AndyW
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336 posts
Joined: Dec. 2014
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I'd like to grab start and end frames from the alembic SOP as attributes, I can see it in the node info but I'm not sure how to access those values directly, any tips? Thanks!
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krueger
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191 posts
Joined: Oct. 2018
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I was looking for the same thing and this is working for me in python:

node = hou.node('/obj/geo1/alembic1')
tree = node.infoTree()
branches = tree.branches()

info = "Alembic SOP Info"

if info in branches :
    rows = branches[info].rows()
    start = ""
    end = ""
    
    for row in rows :
        if row[0] == "Start Frame" :
            start = row[1]
        if row[0] == "End Frame" :
            end = row[1]
    
    if start != "" and end != "" :
        print (start + " - " + end)
else :
    print "No info available."
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geordiemartinez
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Joined: April 2016
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It would be nice if this was added as detail attributes on the alembic import node.
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derrick
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329 posts
Joined: July 2005
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The Alembic HOM Extensions provide access to the range of time samples in the Alembic archive. You can convert these to frame values if needed.

import _alembic_hom_extensions as ahe
start_time, end_time = ahe.alembicTimeRange(filename)
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