try:

objectType = mc.objectType(sel) # Get object type.

except:

objectType = "transform" # If there is no shape node pass "transform".

shapeListSize = len(shapeList)

if not 0 < shapeListSize < 2:

return False

objectType = getObjectType(shapeList[0])

if objectType == "imagePlane":

return True

else:

shapeList = []

for transform in transformList:

shape = mc.listRelatives(transform, shapes=True, fullPath=True)[0]

shapeList.append(shape)

selGeoTransList = mc.ls(selection=True, long=True)

selGeoShapeList = getShapeList(selGeoTransList)

selGeoShapeListSize = len(selGeoShapeList)

if selGeoShapeListSize == 0 or isOneImageplaneSelected(selGeoShapeList): # If nothing is selected toggle all geometry in scene.

holdoutGeoExists = False

geoList = mc.ls(geometry=True, long=True) # Get list of geometric Dag objects in scene.

for geo in geoList:

try:

holdoutGeoExists = mc.getAttr(geo '.holdOut')

except:

pass

if holdoutGeoExists: # If Holdout Geometry exists in scene...

for geo in geoList:

try:

mc.setAttr(geo '.holdOut', 0) # Turn off holdout for all geometry in scene

except:

pass

return

if not holdoutGeoExists: # If there is no Holdout Geometry in scene...

for geo in geoList:

try:

mc.setAttr(geo '.holdOut', 1) # Turn on holdout for all geometry in scene

except:

pass

return

elif selGeoShapeListSize >= 0:

for selGeoShape in selGeoShapeList:

try:

toggleState = mc.getAttr(selGeoShape '.holdOut')

mc.setAttr(selGeoShape '.holdOut', (not toggleState))

except: