In Softimage 2013, the XSICollection object now has a Filter method, so you can filter XSICollections by type, family, or path name.

oFilteredCollection = XSICollection.Filter( [Type], [Families], [Path] )

I updated my find all cameras script to use XSICollection.Filter, and here’s the timing results (form the same scene, but in 2013).

# INFO : getCameras_FindObjects finished in 0.033000 seconds
# INFO : Found 8301 cameras
# INFO : getCameras_FindObjects_w_Filter finished in 0.269000 seconds
# INFO : Found 24 cameras
# INFO : getCameras_FindObjects_w_SIFilter finished in 0.044000 seconds
# INFO : Found 24 cameras
# INFO : getCameras_FindObjects2 finished in 0.001000 seconds
# INFO : Found 49 cameras
# INFO : getCameras_FindObjects2_w_Filter finished in 0.003000 seconds
# INFO : Found 24 cameras
# INFO : getCameras_FindChildren2 finished in 0.149000 seconds
# INFO : Found 24 cameras
# INFO : getCameras_SelectAllUsingFilter finished in 0.035000 seconds
# INFO : Found 24 cameras

• FindObjects2 is fastest, with SelectAllUsingFilter a mildly surprising second (again note that I’m calling SelectAllUsingFilter with AffectSelectionList=False, so I’m not actually selecting anything).

  FindObjects2_w_Filter		0.003000 seconds
  SelectAllUsingFilter		0.035000 seconds
  FindObjects_w_SIFilter		0.044000 seconds
  FindChildren2			0.149000 seconds
  FindObjects_w_Filter		0.269000 seconds
  

• FindObjects finds a lot more than just cameras; it finds lots of nulls too because that GUID isn’t unique to cameras
• In this context, SIFilter is faster than the XSICollection.Filter method

Here’s the updated script for Softimage 2013:

import time
si = Application
log = si.LogMessage
from win32com.client import constants as C

import win32com.client
oCameraColl = win32com.client.Dispatch( "XSI.Collection" )

si.SetValue("preferences.scripting.cmdlog", False, "")


def timeExecution(func):
    def closure(*args, **kwargs):
        startTime = time.time()
        try:
            ret = func(*args, **kwargs)
        except Exception, e:
            delta = time.time() - startTime
            log('Failed in %f seconds' % delta)
            raise
        delta = time.time() - startTime
        log('%s finished in %f seconds' % (func.__name__, delta))
        return ret
    return closure 

@timeExecution
def getCameras_FindObjects():
	oCameraColl = Application.FindObjects( "", "{5FC0CCAE-3DC8-11D0-9449-00AA006D3165}" )
	return oCameraColl.Count

@timeExecution
def getCameras_FindObjects_w_Filter():
	oCameraColl = Application.FindObjects( "", "{5FC0CCAE-3DC8-11D0-9449-00AA006D3165}" )
	oCameraColl = oCameraColl.Filter( "camera" )
	oCameraColl.RemoveItems( oCameraColl.Filter( "", "", "CopyPaste*" ) )
	oCameraColl.RemoveItems( oCameraColl.Filter( "", "", "View*" ) )
	return oCameraColl.Count

@timeExecution
def getCameras_FindObjects_w_SIFilter():
	oCameraColl = Application.FindObjects( "", "{5FC0CCAE-3DC8-11D0-9449-00AA006D3165}" )
	oCameraColl = si.SIFilter( oCameraColl, "camera" )
	oCameraColl.RemoveItems( oCameraColl.Filter( "", "", "CopyPaste*" ) )
	oCameraColl.RemoveItems( oCameraColl.Filter( "", "", "View*" ) )
	return oCameraColl.Count


@timeExecution
def getCameras_FindObjects2():
	c = si.FindObjects2( C.siCameraID )
	return c.Count

@timeExecution
def getCameras_FindObjects2_w_Filter():
	cams = si.FindObjects2( C.siCameraID )
	oCameraColl.Items = cams
	oCameraColl.RemoveItems( cams.Filter( "", "", "CopyPaste*" ) )
	oCameraColl.RemoveItems( cams.Filter( "", "", "View*" ) )
	return oCameraColl.Count


@timeExecution
def getCameras_FindChildren2():
	cams = si.ActiveSceneRoot.FindChildren2("", "camera")
	return cams.Count

@timeExecution
def getCameras_SelectAllUsingFilter():
	cams = si.SelectAllUsingFilter("Camera", "siIgnoreComponentVisibility", False, "")
	return cams.Count



@timeExecution
def getCameras_Model_FindObjects():
	cams = si.ActiveSceneRoot.FindObjects( C.siCameraID )
	return cams.Count


log( 'Found %d cameras' % getCameras_FindObjects() )
log( 'Found %d cameras' % getCameras_FindObjects_w_Filter() )
log( 'Found %d cameras' % getCameras_FindObjects_w_SIFilter() )
log( 'Found %d cameras' % getCameras_FindObjects2() )
log( 'Found %d cameras' % getCameras_FindObjects2_w_Filter() )
log( 'Found %d cameras' % getCameras_FindChildren2() )
log( 'Found %d cameras' % getCameras_SelectAllUsingFilter() )