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Partial fix for T44404: freestyle crashes blender.

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Logical predicates AndUP1D and OrUP1D were instantiated even with an empty
list of unary 1D predicates, causing an exception in the constructors of
the logical predicate classes.

This is a regression made in b408d8af31c9fba5898e353c97f95f7ce8dc19c1.
This commit is contained in:
Tamito Kajiyama 2015-04-16 09:13:40 +09:00
parent b88421aa62
commit b466a82fa5
1 changed files with 8 additions and 7 deletions
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15
release/scripts/freestyle/modules/parameter_editor.py
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@ -960,11 +960,11 @@ def process(layer_name, lineset_name):
if lineset.select_external_contour:
upred = ExternalContourUP1D()
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_external_contour else upred)
if lineset.edge_type_combination == 'OR':
upred = OrUP1D(*edge_type_criteria)
else:
upred = AndUP1D(*edge_type_criteria)
if upred is not None:
if edge_type_criteria:
if lineset.edge_type_combination == 'OR':
upred = OrUP1D(*edge_type_criteria)
else:
upred = AndUP1D(*edge_type_criteria)
if lineset.edge_type_negation == 'EXCLUSIVE':
upred = NotUP1D(upred)
selection_criteria.append(upred)
@ -989,8 +989,9 @@ def process(layer_name, lineset_name):
upred = WithinImageBoundaryUP1D(*ContextFunctions.get_border())
selection_criteria.append(upred)
# select feature edges
upred = AndUP1D(*selection_criteria)
if upred is None:
if selection_criteria:
upred = AndUP1D(*selection_criteria)
else:
upred = TrueUP1D()
Operators.select(upred)
# join feature edges to form chains