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# SPDX-FileCopyrightText: 2022-2023 Blender Authors
#
# SPDX-License-Identifier: GPL-2.0-or-later
"""
blender -b --factory-startup --python tests/python/bl_rigging_symmetrize.py -- --testdir /path/to/tests/data/animation
"""
import pathlib
import sys
import unittest
import bpy
def check_loc_rot_scale(self, bone, exp_bone):
# Check if posistions are the same
self.assertEqualVector(
bone.head, exp_bone.head, "Head position", bone.name)
self.assertEqualVector(
bone.tail, exp_bone.tail, "Tail position", bone.name)
# Scale
self.assertEqualVector(
bone.scale, exp_bone.scale, "Scale", bone.name)
# Rotation
rot_mode = exp_bone.rotation_mode
self.assertEqual(bone.rotation_mode, rot_mode, "Rotations mode does not match on bone %s" % (bone.name))
if rot_mode == 'QUATERNION':
self.assertEqualVector(
bone.rotation_quaternion, exp_bone.rotation_quaternion, "Quaternion rotation", bone.name)
elif rot_mode == 'AXIS_ANGLE':
self.assertEqualVector(
bone.axis_angle, exp_bone.axis_angle, "Axis Angle rotation", bone.name)
else:
# Euler rotation
self.assertEqualVector(
bone.rotation_euler, exp_bone.rotation_euler, "Euler rotation", bone.name)
def check_parent(self, bone, exp_bone):
self.assertEqual(type(bone.parent), type(exp_bone.parent),
"Mismatching types in pose.bones[%s].parent" % (bone.name))
self.assertTrue(bone.parent is None or bone.parent.name == exp_bone.parent.name,
"Bone parent does not match on bone %s" % (bone.name))
def check_bendy_bones(self, bone, exp_bone):
bone_variables = bone.bl_rna.properties.keys()
bendy_bone_variables = [
var for var in bone_variables if var.startswith("bbone_")]
for var in bendy_bone_variables:
value = getattr(bone, var)
exp_value = getattr(exp_bone, var)
self.assertEqual(type(value), type(exp_value),
"Mismatching types in pose.bones[%s].%s" % (bone.name, var))
if isinstance(value, str):
self.assertEqual(value, exp_value,
"Mismatching value in pose.bones[%s].%s" % (bone.name, var))
elif hasattr(value, "name"):
self.assertEqual(value.name, exp_value.name,
"Mismatching value in pose.bones[%s].%s" % (bone.name, var))
else:
self.assertAlmostEqual(value, exp_value,
"Mismatching value in pose.bones[%s].%s" % (bone.name, var))
def check_ik(self, bone, exp_bone):
bone_variables = bone.bl_rna.properties.keys()
prefixes = ("ik_", "lock_ik", "use_ik")
ik_bone_variables = (
var for var in bone_variables
if var.startswith(prefixes)
)
for var in ik_bone_variables:
value = getattr(bone, var)
exp_value = getattr(exp_bone, var)
self.assertAlmostEqual(value, exp_value,
"Mismatching value in pose.bones[%s].%s" % (bone.name, var))
def check_constraints(self, input_arm, expected_arm, bone, exp_bone):
const_len = len(bone.constraints)
expo_const_len = len(exp_bone.constraints)
self.assertEqual(const_len, expo_const_len,
"Constraints mismatch on bone %s" % (bone.name))
for exp_constraint in exp_bone.constraints:
const_name = exp_constraint.name
# Make sure that the constraint exists
self.assertTrue(const_name in bone.constraints,
"Bone %s is expected to contain constraint %s, but it does not." % (
bone.name, const_name))
constraint = bone.constraints[const_name]
const_variables = constraint.bl_rna.properties.keys()
for var in const_variables:
if var == "is_override_data":
# This variable is not used for local (non linked) data.
# For local object it is not initialized, so don't check this value.
continue
value = getattr(constraint, var)
exp_value = getattr(exp_constraint, var)
self.assertEqual(type(value), type(exp_value),
"Mismatching constraint value types in pose.bones[%s].constraints[%s].%s" % (
bone.name, const_name, var))
if isinstance(value, bpy.types.bpy_prop_collection):
# Don't compare collection properties.
continue
if isinstance(value, str):
self.assertEqual(value, exp_value,
"Mismatching constraint value in pose.bones[%s].constraints[%s].%s" % (
bone.name, const_name, var))
elif hasattr(value, "name"):
# Some constraints targets the armature itself, so the armature name should mismatch.
if value.name == input_arm.name and exp_value.name == expected_arm.name:
continue
self.assertEqual(value.name, exp_value.name,
"Mismatching constraint value in pose.bones[%s].constraints[%s].%s" % (
bone.name, const_name, var))
elif isinstance(value, bool):
self.assertEqual(value, exp_value,
"Mismatching constraint boolean in pose.bones[%s].constraints[%s].%s" % (
bone.name, const_name, var))
elif isinstance(value, float):
msg = "Mismatching constraint value in pose.bones[%s].constraints[%s].%s" % (
bone.name, const_name, var)
self.assertAlmostEqual(value, exp_value, places=6, msg=msg)
elif isinstance(value, int):
msg = "Mismatching constraint value in pose.bones[%s].constraints[%s].%s" % (
bone.name, const_name, var)
self.assertEqual(value, exp_value, msg=msg)
elif value is None:
# Since above the types were compared already, if value is none, so is exp_value.
pass
else:
self.fail(f"unexpected value type: {value!r} is of type {type(value)}")
class AbstractAnimationTest:
@classmethod
def setUpClass(cls):
cls.testdir = args.testdir
def setUp(self):
self.assertTrue(self.testdir.exists(),
'Test dir %s should exist' % self.testdir)
class ArmatureSymmetrizeTest(AbstractAnimationTest, unittest.TestCase):
def test_symmetrize_operator(self):
"""Test that the symmetrize operator is working correctly."""
bpy.ops.wm.open_mainfile(filepath=str(
self.testdir / "symm_test.blend"))
# #81541 (D9214)
arm = bpy.data.objects['transform_const_rig']
expected_arm = bpy.data.objects['expected_transform_const_rig']
self.assertEqualSymmetrize(arm, expected_arm)
# #66751 (D6009)
arm = bpy.data.objects['dragon_rig']
expected_arm = bpy.data.objects['expected_dragon_rig']
self.assertEqualSymmetrize(arm, expected_arm)
def assertEqualSymmetrize(self, input_arm, expected_arm):
# Symmetrize our input armature
bpy.context.view_layer.objects.active = input_arm
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.armature.select_all(action='SELECT')
bpy.ops.armature.symmetrize()
bpy.ops.object.mode_set(mode='OBJECT')
# Make sure that the bone count is the same
bone_len = len(input_arm.pose.bones)
expected_bone_len = len(expected_arm.pose.bones)
self.assertEqual(bone_len, expected_bone_len,
"Expected bone count to match")
for exp_bone in expected_arm.pose.bones:
bone_name = exp_bone.name
# Make sure that the bone exists
self.assertTrue(bone_name in input_arm.pose.bones,
"Armature is expected to contain bone %s, but it does not." % (bone_name))
bone = input_arm.pose.bones[bone_name]
# Loc Rot Scale
check_loc_rot_scale(self, bone, exp_bone)
# Parent settings
check_parent(self, bone, exp_bone)
# Bendy Bones
check_bendy_bones(self, bone, exp_bone)
# IK
check_ik(self, bone, exp_bone)
# Constraints
check_constraints(self, input_arm, expected_arm, bone, exp_bone)
def assertEqualVector(self, vec1, vec2, check_str, bone_name) -> None:
for idx, value in enumerate(vec1):
self.assertAlmostEqual(
value, vec2[idx], 3, "%s does not match with expected value on bone %s" % (check_str, bone_name))
def main():
global args
import argparse
if '--' in sys.argv:
argv = [sys.argv[0]] + sys.argv[sys.argv.index('--') + 1:]
else:
argv = sys.argv
parser = argparse.ArgumentParser()
parser.add_argument('--testdir', required=True, type=pathlib.Path)
args, remaining = parser.parse_known_args(argv)
unittest.main(argv=remaining)
if __name__ == "__main__":
main()
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