Cleanup: Alembic, rename unit test
This rename is to prepare for a future addition to the unit test file. Currently it's named "import" and I will add an export test as well. The rename is a separate commit to easily see the difference between the rename and the addition of another test. No functional changes.
This commit is contained in:
Sybren A. Stüvel
278
tests/python/bl_alembic_io_test.py
Normal file
278
tests/python/bl_alembic_io_test.py
Normal file
@@ -0,0 +1,278 @@
|
||||
# ##### BEGIN GPL LICENSE BLOCK #####
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License
|
||||
# as published by the Free Software Foundation; either version 2
|
||||
# of the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software Foundation,
|
||||
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||||
#
|
||||
# ##### END GPL LICENSE BLOCK #####
|
||||
|
||||
# <pep8 compliant>
|
||||
|
||||
"""
|
||||
./blender.bin --background -noaudio --factory-startup --python tests/python/bl_alembic_io_test.py -- --testdir /path/to/lib/tests/alembic
|
||||
"""
|
||||
|
||||
import pathlib
|
||||
import sys
|
||||
import unittest
|
||||
|
||||
import bpy
|
||||
|
||||
args = None
|
||||
|
||||
|
||||
class AbstractAlembicTest(unittest.TestCase):
|
||||
@classmethod
|
||||
def setUpClass(cls):
|
||||
cls.testdir = args.testdir
|
||||
|
||||
def setUp(self):
|
||||
self.assertTrue(self.testdir.exists(),
|
||||
'Test dir %s should exist' % self.testdir)
|
||||
|
||||
# Make sure we always start with a known-empty file.
|
||||
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "empty.blend"))
|
||||
|
||||
def assertAlmostEqualFloatArray(self, actual, expect, places=6, delta=None):
|
||||
"""Asserts that the arrays of floats are almost equal."""
|
||||
|
||||
self.assertEqual(len(actual), len(expect),
|
||||
'Actual array has %d items, expected %d' % (len(actual), len(expect)))
|
||||
|
||||
for idx, (act, exp) in enumerate(zip(actual, expect)):
|
||||
self.assertAlmostEqual(act, exp, places=places, delta=delta,
|
||||
msg='%f != %f at index %d' % (act, exp, idx))
|
||||
|
||||
|
||||
class SimpleImportTest(AbstractAlembicTest):
|
||||
def test_import_cube_hierarchy(self):
|
||||
res = bpy.ops.wm.alembic_import(
|
||||
filepath=str(self.testdir / "cubes-hierarchy.abc"),
|
||||
as_background_job=False)
|
||||
self.assertEqual({'FINISHED'}, res)
|
||||
|
||||
# The objects should be linked to scene.collection in Blender 2.8,
|
||||
# and to scene in Blender 2.7x.
|
||||
objects = bpy.context.scene.collection.objects
|
||||
self.assertEqual(13, len(objects))
|
||||
|
||||
# Test the hierarchy.
|
||||
self.assertIsNone(objects['Cube'].parent)
|
||||
self.assertEqual(objects['Cube'], objects['Cube_001'].parent)
|
||||
self.assertEqual(objects['Cube'], objects['Cube_002'].parent)
|
||||
self.assertEqual(objects['Cube'], objects['Cube_003'].parent)
|
||||
self.assertEqual(objects['Cube_003'], objects['Cube_004'].parent)
|
||||
self.assertEqual(objects['Cube_003'], objects['Cube_005'].parent)
|
||||
self.assertEqual(objects['Cube_003'], objects['Cube_006'].parent)
|
||||
|
||||
def test_inherit_or_not(self):
|
||||
res = bpy.ops.wm.alembic_import(
|
||||
filepath=str(self.testdir / "T52022-inheritance.abc"),
|
||||
as_background_job=False)
|
||||
self.assertEqual({'FINISHED'}, res)
|
||||
|
||||
# The objects should be linked to scene.collection in Blender 2.8,
|
||||
# and to scene in Blender 2.7x.
|
||||
objects = bpy.context.scene.collection.objects
|
||||
|
||||
# ABC parent is top-level object, which translates to nothing in Blender
|
||||
self.assertIsNone(objects['locator1'].parent)
|
||||
|
||||
# ABC parent is locator1, but locator2 has "inherits Xforms" = false, which
|
||||
# translates to "no parent" in Blender.
|
||||
self.assertIsNone(objects['locator2'].parent)
|
||||
|
||||
depsgraph = bpy.context.evaluated_depsgraph_get()
|
||||
|
||||
# Shouldn't have inherited the ABC parent's transform.
|
||||
loc2 = depsgraph.id_eval_get(objects['locator2'])
|
||||
x, y, z = objects['locator2'].matrix_world.to_translation()
|
||||
self.assertAlmostEqual(0, x)
|
||||
self.assertAlmostEqual(0, y)
|
||||
self.assertAlmostEqual(2, z)
|
||||
|
||||
# ABC parent is inherited and translates to normal parent in Blender.
|
||||
self.assertEqual(objects['locator2'], objects['locatorShape2'].parent)
|
||||
|
||||
# Should have inherited its ABC parent's transform.
|
||||
locshp2 = depsgraph.id_eval_get(objects['locatorShape2'])
|
||||
x, y, z = locshp2.matrix_world.to_translation()
|
||||
self.assertAlmostEqual(0, x)
|
||||
self.assertAlmostEqual(0, y)
|
||||
self.assertAlmostEqual(2, z)
|
||||
|
||||
def test_select_after_import(self):
|
||||
# Add a sphere, so that there is something in the scene, selected, and active,
|
||||
# before we do the Alembic import.
|
||||
bpy.ops.mesh.primitive_uv_sphere_add()
|
||||
sphere = bpy.context.active_object
|
||||
self.assertEqual('Sphere', sphere.name)
|
||||
self.assertEqual([sphere], bpy.context.selected_objects)
|
||||
|
||||
bpy.ops.wm.alembic_import(
|
||||
filepath=str(self.testdir / "cubes-hierarchy.abc"),
|
||||
as_background_job=False)
|
||||
|
||||
# The active object is probably the first one that was imported, but this
|
||||
# behaviour is not defined. At least it should be one of the cubes, and
|
||||
# not the sphere.
|
||||
self.assertNotEqual(sphere, bpy.context.active_object)
|
||||
self.assertTrue('Cube' in bpy.context.active_object.name)
|
||||
|
||||
# All cubes should be selected, but the sphere shouldn't be.
|
||||
for ob in bpy.data.objects:
|
||||
self.assertEqual('Cube' in ob.name, ob.select_get())
|
||||
|
||||
def test_change_path_constraint(self):
|
||||
import math
|
||||
|
||||
fname = 'cube-rotating1.abc'
|
||||
abc = self.testdir / fname
|
||||
relpath = bpy.path.relpath(str(abc))
|
||||
|
||||
res = bpy.ops.wm.alembic_import(filepath=str(abc), as_background_job=False)
|
||||
self.assertEqual({'FINISHED'}, res)
|
||||
cube = bpy.context.active_object
|
||||
|
||||
depsgraph = bpy.context.evaluated_depsgraph_get()
|
||||
|
||||
# Check that the file loaded ok.
|
||||
bpy.context.scene.frame_set(10)
|
||||
cube = depsgraph.id_eval_get(cube)
|
||||
x, y, z = cube.matrix_world.to_euler('XYZ')
|
||||
self.assertAlmostEqual(x, 0)
|
||||
self.assertAlmostEqual(y, 0)
|
||||
self.assertAlmostEqual(z, math.pi / 2, places=5)
|
||||
|
||||
# Change path from absolute to relative. This should not break the animation.
|
||||
bpy.context.scene.frame_set(1)
|
||||
bpy.data.cache_files[fname].filepath = relpath
|
||||
bpy.context.scene.frame_set(10)
|
||||
|
||||
cube = depsgraph.id_eval_get(cube)
|
||||
x, y, z = cube.matrix_world.to_euler('XYZ')
|
||||
self.assertAlmostEqual(x, 0)
|
||||
self.assertAlmostEqual(y, 0)
|
||||
self.assertAlmostEqual(z, math.pi / 2, places=5)
|
||||
|
||||
# Replace the Alembic file; this should apply new animation.
|
||||
bpy.data.cache_files[fname].filepath = relpath.replace('1.abc', '2.abc')
|
||||
depsgraph.update()
|
||||
|
||||
cube = depsgraph.id_eval_get(cube)
|
||||
x, y, z = cube.matrix_world.to_euler('XYZ')
|
||||
self.assertAlmostEqual(x, math.pi / 2, places=5)
|
||||
self.assertAlmostEqual(y, 0)
|
||||
self.assertAlmostEqual(z, 0)
|
||||
|
||||
def test_change_path_modifier(self):
|
||||
fname = 'animated-mesh.abc'
|
||||
abc = self.testdir / fname
|
||||
relpath = bpy.path.relpath(str(abc))
|
||||
|
||||
res = bpy.ops.wm.alembic_import(filepath=str(abc), as_background_job=False)
|
||||
self.assertEqual({'FINISHED'}, res)
|
||||
plane = bpy.context.active_object
|
||||
|
||||
depsgraph = bpy.context.evaluated_depsgraph_get()
|
||||
|
||||
# Check that the file loaded ok.
|
||||
bpy.context.scene.frame_set(6)
|
||||
scene = bpy.context.scene
|
||||
plane_eval = plane.evaluated_get(depsgraph)
|
||||
mesh = plane_eval.to_mesh()
|
||||
self.assertAlmostEqual(-1, mesh.vertices[0].co.x)
|
||||
self.assertAlmostEqual(-1, mesh.vertices[0].co.y)
|
||||
self.assertAlmostEqual(0.5905638933181763, mesh.vertices[0].co.z)
|
||||
plane_eval.to_mesh_clear()
|
||||
|
||||
# Change path from absolute to relative. This should not break the animation.
|
||||
scene.frame_set(1)
|
||||
bpy.data.cache_files[fname].filepath = relpath
|
||||
scene.frame_set(6)
|
||||
|
||||
plane_eval = plane.evaluated_get(depsgraph)
|
||||
mesh = plane_eval.to_mesh()
|
||||
self.assertAlmostEqual(1, mesh.vertices[3].co.x)
|
||||
self.assertAlmostEqual(1, mesh.vertices[3].co.y)
|
||||
self.assertAlmostEqual(0.5905638933181763, mesh.vertices[3].co.z)
|
||||
plane_eval.to_mesh_clear()
|
||||
|
||||
def test_import_long_names(self):
|
||||
# This file contains very long names. The longest name is 4047 chars.
|
||||
bpy.ops.wm.alembic_import(
|
||||
filepath=str(self.testdir / "long-names.abc"),
|
||||
as_background_job=False)
|
||||
|
||||
self.assertIn('Cube', bpy.data.objects)
|
||||
self.assertEqual('CubeShape', bpy.data.objects['Cube'].data.name)
|
||||
|
||||
|
||||
class VertexColourImportTest(AbstractAlembicTest):
|
||||
def test_import_from_houdini(self):
|
||||
# Houdini saved "face-varying", and as RGB.
|
||||
res = bpy.ops.wm.alembic_import(
|
||||
filepath=str(self.testdir / "vertex-colours-houdini.abc"),
|
||||
as_background_job=False)
|
||||
self.assertEqual({'FINISHED'}, res)
|
||||
|
||||
ob = bpy.context.active_object
|
||||
layer = ob.data.vertex_colors['Cf'] # MeshLoopColorLayer
|
||||
|
||||
# Test some known-good values.
|
||||
self.assertAlmostEqualFloatArray(layer.data[0].color, (0, 0, 0, 1.0))
|
||||
self.assertAlmostEqualFloatArray(layer.data[98].color, (0.9019607, 0.4745098, 0.2666666, 1.0))
|
||||
self.assertAlmostEqualFloatArray(layer.data[99].color, (0.8941176, 0.4705882, 0.2627451, 1.0))
|
||||
|
||||
def test_import_from_blender(self):
|
||||
# Blender saved per-vertex, and as RGBA.
|
||||
res = bpy.ops.wm.alembic_import(
|
||||
filepath=str(self.testdir / "vertex-colours-blender.abc"),
|
||||
as_background_job=False)
|
||||
self.assertEqual({'FINISHED'}, res)
|
||||
|
||||
ob = bpy.context.active_object
|
||||
layer = ob.data.vertex_colors['Cf'] # MeshLoopColorLayer
|
||||
|
||||
# Test some known-good values.
|
||||
self.assertAlmostEqualFloatArray(layer.data[0].color, (1.0, 0.0156862, 0.3607843, 1.0))
|
||||
self.assertAlmostEqualFloatArray(layer.data[98].color, (0.0941176, 0.1215686, 0.9137254, 1.0))
|
||||
self.assertAlmostEqualFloatArray(layer.data[99].color, (0.1294117, 0.3529411, 0.7529411, 1.0))
|
||||
|
||||
|
||||
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__":
|
||||
import traceback
|
||||
# So a python error exits Blender itself too
|
||||
try:
|
||||
main()
|
||||
except SystemExit:
|
||||
raise
|
||||
except:
|
||||
traceback.print_exc()
|
||||
sys.exit(1)
|
||||
Reference in New Issue
Block a user