3c407ebeaa
Current NURBS evaluation handles corners or sharp angles poorly. Sharp edges appear when a knot vector value is repeated `order - 1` times. Users can make sharp corners by creating NURBS curve with `Bezier` knot mode or by setting `order` to 2 for legacy curves. The problem occurs because current algorithm takes all the curve's definition interval, divides it into equal parts and evaluates at those points, but corners are exactly on repeated knot's. To hit those, the resolution has to be increased higher than required for the rest of the curve. The new algorithm divides non zero length intervals between two adjacent knots into equal parts. This way corners are hit with a resolution of 1. This does change the evaluated points of NURBS curves, which is why some test results have to be updated in this commit. Pull Request: https://projects.blender.org/blender/blender/pulls/138565
1824 lines
93 KiB
Python
1824 lines
93 KiB
Python
# SPDX-FileCopyrightText: 2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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import math
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import os
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import pathlib
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import pprint
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import sys
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import tempfile
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import unittest
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from pxr import Gf, Sdf, Usd, UsdGeom, UsdMtlx, UsdShade, UsdSkel, UsdUtils, UsdVol
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import bpy
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sys.path.append(str(pathlib.Path(__file__).parent.absolute()))
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from modules.colored_print import (print_message, use_message_colors)
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args = None
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class AbstractUSDTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls._tempdir = tempfile.TemporaryDirectory()
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cls.testdir = args.testdir
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cls.tempdir = pathlib.Path(cls._tempdir.name)
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if os.environ.get("BLENDER_TEST_COLOR") is not None:
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use_message_colors()
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def setUp(self):
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self.assertTrue(self.testdir.exists(), "Test dir {0} should exist".format(self.testdir))
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print_message(self._testMethodName, 'SUCCESS', 'RUN')
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def tearDown(self):
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self._tempdir.cleanup()
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result = self._outcome.result
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ok = all(test != self for test, _ in result.errors + result.failures)
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if not ok:
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print_message(self._testMethodName, 'FAILURE', 'FAILED')
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else:
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print_message(self._testMethodName, 'SUCCESS', 'PASSED')
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def export_and_validate(self, **kwargs):
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"""Export and validate the resulting USD file."""
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export_path = kwargs["filepath"]
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# Do the actual export
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res = bpy.ops.wm.usd_export(**kwargs)
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self.assertEqual({'FINISHED'}, res, f"Unable to export to {export_path}")
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# Validate resulting file
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checker = UsdUtils.ComplianceChecker(
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arkit=False,
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skipARKitRootLayerCheck=False,
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rootPackageOnly=False,
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skipVariants=False,
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verbose=False,
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)
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checker.CheckCompliance(export_path)
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failed_checks = {}
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# The ComplianceChecker does not know how to resolve <UDIM> tags, so
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# it will flag "textures/test_grid_<UDIM>.png" as a missing reference.
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# That reference is in fact OK, so we skip the rule for this test.
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to_skip = ("MissingReferenceChecker",)
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for rule in checker._rules:
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name = rule.__class__.__name__
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if name in to_skip:
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continue
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issues = rule.GetFailedChecks() + rule.GetWarnings() + rule.GetErrors()
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if not issues:
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continue
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failed_checks[name] = issues
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self.assertFalse(failed_checks, pprint.pformat(failed_checks))
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class USDExportTest(AbstractUSDTest):
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# Utility function to round each component of a vector to a few digits. The "+ 0" is to
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# ensure that any negative zeros (-0.0) are converted to positive zeros (0.0).
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@staticmethod
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def round_vector(vector):
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return [round(c, 4) + 0 for c in vector]
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# Utility function to compare two Gf.Vec3d's
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def compareVec3d(self, first, second):
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places = 5
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self.assertAlmostEqual(first[0], second[0], places)
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self.assertAlmostEqual(first[1], second[1], places)
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self.assertAlmostEqual(first[2], second[2], places)
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def test_export_extents(self):
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"""Test that exported scenes contain have a properly authored extent attribute on each boundable prim"""
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bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_extent_test.blend"))
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export_path = self.tempdir / "usd_extent_test.usda"
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self.export_and_validate(
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filepath=str(export_path),
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export_materials=True,
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evaluation_mode="RENDER",
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convert_world_material=False,
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)
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# if prims are missing, the exporter must have skipped some objects
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stats = UsdUtils.ComputeUsdStageStats(str(export_path))
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self.assertEqual(stats["totalPrimCount"], 16, "Unexpected number of prims")
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# validate the overall world bounds of the scene
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stage = Usd.Stage.Open(str(export_path))
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scenePrim = stage.GetPrimAtPath("/root/scene")
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bboxcache = UsdGeom.BBoxCache(Usd.TimeCode.Default(), [UsdGeom.Tokens.default_])
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bounds = bboxcache.ComputeWorldBound(scenePrim)
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bound_min = bounds.GetRange().GetMin()
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bound_max = bounds.GetRange().GetMax()
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self.compareVec3d(bound_min, Gf.Vec3d(-5.752975881, -1, -2.798513651))
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self.compareVec3d(bound_max, Gf.Vec3d(1, 2.9515805244, 2.7985136508))
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# validate the locally authored extents
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prim = stage.GetPrimAtPath("/root/scene/BigCube/BigCubeMesh")
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extent = UsdGeom.Boundable(prim).GetExtentAttr().Get()
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self.compareVec3d(Gf.Vec3d(extent[0]), Gf.Vec3d(-1, -1, -2.7985137))
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self.compareVec3d(Gf.Vec3d(extent[1]), Gf.Vec3d(1, 1, 2.7985137))
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prim = stage.GetPrimAtPath("/root/scene/LittleCube/LittleCubeMesh")
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extent = UsdGeom.Boundable(prim).GetExtentAttr().Get()
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self.compareVec3d(Gf.Vec3d(extent[0]), Gf.Vec3d(-1, -1, -1))
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self.compareVec3d(Gf.Vec3d(extent[1]), Gf.Vec3d(1, 1, 1))
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prim = stage.GetPrimAtPath("/root/scene/Volume/Volume")
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extent = UsdGeom.Boundable(prim).GetExtentAttr().Get()
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self.compareVec3d(
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Gf.Vec3d(extent[0]), Gf.Vec3d(-0.7313742, -0.68043584, -0.5801515)
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)
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self.compareVec3d(
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Gf.Vec3d(extent[1]), Gf.Vec3d(0.7515701, 0.5500924, 0.9027928)
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)
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def test_material_transforms(self):
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"""Validate correct export of image mapping parameters to the UsdTransform2d shader def"""
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# Use the common materials .blend file
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bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_export.blend"))
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export_path = self.tempdir / "material_transforms.usda"
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self.export_and_validate(filepath=str(export_path), export_materials=True)
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# Inspect the UsdTransform2d prim on the "Transforms" material
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stage = Usd.Stage.Open(str(export_path))
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shader_prim = stage.GetPrimAtPath("/root/_materials/Transforms/Mapping")
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shader = UsdShade.Shader(shader_prim)
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self.assertEqual(shader.GetIdAttr().Get(), "UsdTransform2d")
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input_trans = shader.GetInput('translation')
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input_rot = shader.GetInput('rotation')
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input_scale = shader.GetInput('scale')
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self.assertEqual(input_trans.Get(), [0.75, 0.75])
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self.assertEqual(input_rot.Get(), 180)
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self.assertEqual(input_scale.Get(), [0.5, 0.5])
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def test_material_normal_maps(self):
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"""Validate correct export of typical normal map setups to the UsdUVTexture shader def.
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Namely validate that scale, bias, and ColorSpace settings are correct"""
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# Use the common materials .blend file
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bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_export.blend"))
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export_path = self.tempdir / "material_normalmaps.usda"
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self.export_and_validate(filepath=str(export_path), export_materials=True)
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# Inspect the UsdUVTexture prim on the "typical" "NormalMap" material
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stage = Usd.Stage.Open(str(export_path))
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shader_prim = stage.GetPrimAtPath("/root/_materials/NormalMap/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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self.assertEqual(shader.GetIdAttr().Get(), "UsdUVTexture")
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input_scale = shader.GetInput('scale')
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input_bias = shader.GetInput('bias')
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input_colorspace = shader.GetInput('sourceColorSpace')
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self.assertEqual(input_scale.Get(), [2, 2, 2, 2])
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self.assertEqual(input_bias.Get(), [-1, -1, -1, -1])
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self.assertEqual(input_colorspace.Get(), 'raw')
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# Inspect the UsdUVTexture prim on the "inverted" "NormalMap_Scale_Bias" material
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stage = Usd.Stage.Open(str(export_path))
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shader_prim = stage.GetPrimAtPath("/root/_materials/NormalMap_Scale_Bias/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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self.assertEqual(shader.GetIdAttr().Get(), "UsdUVTexture")
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input_scale = shader.GetInput('scale')
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input_bias = shader.GetInput('bias')
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input_colorspace = shader.GetInput('sourceColorSpace')
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self.assertEqual(input_scale.Get(), [2, -2, 2, 1])
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self.assertEqual(input_bias.Get(), [-1, 1, -1, 0])
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self.assertEqual(input_colorspace.Get(), 'raw')
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def test_material_opacity_threshold(self):
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"""Validate correct export of opacity and opacity_threshold parameters to the UsdPreviewSurface shader def"""
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# Use the common materials .blend file
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bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_channels.blend"))
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export_path = self.tempdir / "usd_materials_channels.usda"
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self.export_and_validate(filepath=str(export_path), export_materials=True)
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# Opaque no-Alpha
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stage = Usd.Stage.Open(str(export_path))
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shader_prim = stage.GetPrimAtPath("/root/_materials/Opaque/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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opacity_input = shader.GetInput('opacity')
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self.assertEqual(opacity_input.HasConnectedSource(), False,
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"Opacity input should not be connected for opaque material")
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self.assertAlmostEqual(opacity_input.Get(), 1.0, 2, "Opacity input should be set to 1")
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# Validate Image Alpha to BSDF Alpha
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shader_prim = stage.GetPrimAtPath("/root/_materials/Alpha/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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opacity_input = shader.GetInput('opacity')
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opacity_thresh_input = shader.GetInput('opacityThreshold')
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self.assertEqual(opacity_input.HasConnectedSource(), True, "Alpha input should be connected")
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self.assertEqual(opacity_thresh_input.Get(), None, "Opacity threshold input should be empty")
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# Validate Image Alpha to BSDF Alpha w/Round
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shader_prim = stage.GetPrimAtPath("/root/_materials/AlphaClip_Round/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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opacity_input = shader.GetInput('opacity')
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opacity_thresh_input = shader.GetInput('opacityThreshold')
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self.assertEqual(opacity_input.HasConnectedSource(), True, "Alpha input should be connected")
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self.assertAlmostEqual(opacity_thresh_input.Get(), 0.5, 2, "Opacity threshold input should be 0.5")
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# Validate Image Alpha to BSDF Alpha w/LessThan+Invert
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shader_prim = stage.GetPrimAtPath("/root/_materials/AlphaClip_LessThan/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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opacity_input = shader.GetInput('opacity')
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opacity_thresh_input = shader.GetInput('opacityThreshold')
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self.assertEqual(opacity_input.HasConnectedSource(), True, "Alpha input should be connected")
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self.assertAlmostEqual(opacity_thresh_input.Get(), 0.8, 2, "Opacity threshold input should be 0.8")
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# Validate Image RGB to BSDF Metallic, Roughness, Alpha
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shader_prim = stage.GetPrimAtPath("/root/_materials/Channel/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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metallic_input = shader.GetInput("metallic")
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roughness_input = shader.GetInput("roughness")
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opacity_input = shader.GetInput('opacity')
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opacity_thresh_input = shader.GetInput('opacityThreshold')
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self.assertEqual(metallic_input.HasConnectedSource(), True, "Metallic input should be connected")
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self.assertEqual(roughness_input.HasConnectedSource(), True, "Roughness input should be connected")
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self.assertEqual(opacity_input.HasConnectedSource(), True, "Alpha input should be connected")
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self.assertEqual(opacity_thresh_input.Get(), None, "Opacity threshold input should be empty")
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# Validate Image RGB to BSDF Metallic, Roughness, Alpha w/Round
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shader_prim = stage.GetPrimAtPath("/root/_materials/ChannelClip_Round/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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metallic_input = shader.GetInput("metallic")
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roughness_input = shader.GetInput("roughness")
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opacity_input = shader.GetInput('opacity')
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opacity_thresh_input = shader.GetInput('opacityThreshold')
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self.assertEqual(metallic_input.HasConnectedSource(), True, "Metallic input should be connected")
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self.assertEqual(roughness_input.HasConnectedSource(), True, "Roughness input should be connected")
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self.assertEqual(opacity_input.HasConnectedSource(), True, "Alpha input should be connected")
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self.assertAlmostEqual(opacity_thresh_input.Get(), 0.5, 2, "Opacity threshold input should be 0.5")
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# Validate Image RGB to BSDF Metallic, Roughness, Alpha w/LessThan+Invert
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shader_prim = stage.GetPrimAtPath("/root/_materials/ChannelClip_LessThan/Principled_BSDF")
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shader = UsdShade.Shader(shader_prim)
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metallic_input = shader.GetInput("metallic")
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roughness_input = shader.GetInput("roughness")
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opacity_input = shader.GetInput('opacity')
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opacity_thresh_input = shader.GetInput('opacityThreshold')
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self.assertEqual(metallic_input.HasConnectedSource(), True, "Metallic input should be connected")
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self.assertEqual(roughness_input.HasConnectedSource(), True, "Roughness input should be connected")
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self.assertEqual(opacity_input.HasConnectedSource(), True, "Alpha input should be connected")
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self.assertAlmostEqual(opacity_thresh_input.Get(), 0.2, 2, "Opacity threshold input should be 0.2")
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def test_export_material_subsets(self):
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"""Validate multiple materials assigned to the same mesh work correctly."""
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bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_multi.blend"))
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# Ensure the simulation zone data is baked for all relevant frames...
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for frame in range(1, 5):
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bpy.context.scene.frame_set(frame)
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bpy.context.scene.frame_set(1)
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export_path = self.tempdir / "usd_materials_multi.usda"
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self.export_and_validate(filepath=str(export_path), export_animation=True, evaluation_mode="RENDER")
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stage = Usd.Stage.Open(str(export_path))
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# The static mesh should have 4 materials each assigned to 4 faces (16 faces total)
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static_mesh_prim = UsdGeom.Mesh(stage.GetPrimAtPath("/root/static_mesh/static_mesh"))
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geom_subsets = UsdGeom.Subset.GetGeomSubsets(static_mesh_prim)
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self.assertEqual(len(geom_subsets), 4)
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unique_face_indices = set()
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for subset in geom_subsets:
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face_indices = subset.GetIndicesAttr().Get()
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self.assertEqual(len(face_indices), 4)
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unique_face_indices.update(face_indices)
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self.assertEqual(len(unique_face_indices), 16)
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# The dynamic mesh varies over time (currently blocked, see #124554 and #118754)
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# - Frame 1: 1 face and 1 material [mat2]
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# - Frame 2: 2 faces and 2 materials [mat2, mat3]
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# - Frame 3: 4 faces and 3 materials [mat2, mat3, mat2, mat1]
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# - Frame 4: 4 faces and 2 materials [mat2, mat3, mat2, mat3]
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dynamic_mesh_prim = UsdGeom.Mesh(stage.GetPrimAtPath("/root/dynamic_mesh/dynamic_mesh"))
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geom_subsets = UsdGeom.Subset.GetGeomSubsets(dynamic_mesh_prim)
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self.assertEqual(len(geom_subsets), 0)
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def test_export_material_inmem(self):
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"""Validate correct export of in memory and packed images"""
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bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_inmem_pack.blend"))
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export_path1 = self.tempdir / "usd_materials_inmem_pack_relative.usda"
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self.export_and_validate(filepath=str(export_path1), export_textures_mode='NEW', relative_paths=True)
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export_path2 = self.tempdir / "usd_materials_inmem_pack_absolute.usda"
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self.export_and_validate(filepath=str(export_path2), export_textures_mode='NEW', relative_paths=False)
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# Validate that we actually see the correct set of files being saved to the filesystem
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# Relative path variations
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stage = Usd.Stage.Open(str(export_path1))
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stage_path = pathlib.Path(stage.GetRootLayer().realPath)
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shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_inmem_single/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
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self.assertFalse(asset_path.is_absolute())
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self.assertTrue(stage_path.parent.joinpath(asset_path).is_file())
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shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_inmem_udim/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
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image_path1 = pathlib.Path(str(asset_path).replace("<UDIM>", "1001"))
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image_path2 = pathlib.Path(str(asset_path).replace("<UDIM>", "1002"))
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self.assertFalse(asset_path.is_absolute())
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self.assertTrue(stage_path.parent.joinpath(image_path1).is_file())
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self.assertTrue(stage_path.parent.joinpath(image_path2).is_file())
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shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_pack_single/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
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self.assertFalse(asset_path.is_absolute())
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self.assertTrue(stage_path.parent.joinpath(asset_path).is_file())
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shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_pack_udim/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
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image_path1 = pathlib.Path(str(asset_path).replace("<UDIM>", "1001"))
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image_path2 = pathlib.Path(str(asset_path).replace("<UDIM>", "1002"))
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self.assertFalse(asset_path.is_absolute())
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self.assertTrue(stage_path.parent.joinpath(image_path1).is_file())
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self.assertTrue(stage_path.parent.joinpath(image_path2).is_file())
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# Absolute path variations
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stage = Usd.Stage.Open(str(export_path2))
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stage_path = pathlib.Path(stage.GetRootLayer().realPath)
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shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_inmem_single/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
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self.assertTrue(asset_path.is_absolute())
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self.assertTrue(stage_path.parent.joinpath(asset_path).is_file())
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shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_inmem_udim/Image_Texture")
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shader = UsdShade.Shader(shader_prim)
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asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
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image_path1 = pathlib.Path(str(asset_path).replace("<UDIM>", "1001"))
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image_path2 = pathlib.Path(str(asset_path).replace("<UDIM>", "1002"))
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self.assertTrue(asset_path.is_absolute())
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self.assertTrue(stage_path.parent.joinpath(image_path1).is_file())
|
|
self.assertTrue(stage_path.parent.joinpath(image_path2).is_file())
|
|
|
|
shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_pack_single/Image_Texture")
|
|
shader = UsdShade.Shader(shader_prim)
|
|
asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
|
|
self.assertTrue(asset_path.is_absolute())
|
|
self.assertTrue(stage_path.parent.joinpath(asset_path).is_file())
|
|
|
|
shader_prim = stage.GetPrimAtPath("/root/_materials/MAT_pack_udim/Image_Texture")
|
|
shader = UsdShade.Shader(shader_prim)
|
|
asset_path = pathlib.Path(shader.GetInput("file").GetAttr().Get().path)
|
|
image_path1 = pathlib.Path(str(asset_path).replace("<UDIM>", "1001"))
|
|
image_path2 = pathlib.Path(str(asset_path).replace("<UDIM>", "1002"))
|
|
self.assertTrue(asset_path.is_absolute())
|
|
self.assertTrue(stage_path.parent.joinpath(image_path1).is_file())
|
|
self.assertTrue(stage_path.parent.joinpath(image_path2).is_file())
|
|
|
|
def test_export_material_textures_mode(self):
|
|
"""Validate the non-default export textures mode options."""
|
|
|
|
# Use the common materials .blend file
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_export.blend"))
|
|
|
|
# For this test, the "textures" directory should NOT exist and the image paths
|
|
# should all point to the original test location, not the temp output location.
|
|
def check_image_paths(stage):
|
|
orig_tex_path = (self.testdir / "textures")
|
|
temp_tex_path = (self.tempdir / "textures")
|
|
self.assertFalse(temp_tex_path.is_dir())
|
|
|
|
shader_prim = stage.GetPrimAtPath("/root/_materials/Material/Image_Texture")
|
|
shader = UsdShade.Shader(shader_prim)
|
|
filepath = pathlib.Path(shader.GetInput('file').Get().path)
|
|
self.assertEqual(orig_tex_path, filepath.parent)
|
|
|
|
export_file = str(self.tempdir / "usd_materials_texture_preserve.usda")
|
|
self.export_and_validate(
|
|
filepath=export_file, export_materials=True, convert_world_material=False, export_textures_mode='PRESERVE')
|
|
check_image_paths(Usd.Stage.Open(export_file))
|
|
|
|
export_file = str(self.tempdir / "usd_materials_texture_keep.usda")
|
|
self.export_and_validate(
|
|
filepath=export_file, export_materials=True, convert_world_material=False, export_textures_mode='KEEP')
|
|
check_image_paths(Usd.Stage.Open(export_file))
|
|
|
|
def test_export_material_displacement(self):
|
|
"""Validate correct export of Displacement information for the UsdPreviewSurface"""
|
|
|
|
# Use the common materials .blend file
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_displace.blend"))
|
|
export_path = self.tempdir / "material_displace.usda"
|
|
self.export_and_validate(filepath=str(export_path), export_materials=True)
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
# Verify "constant" displacement
|
|
shader_surface = UsdShade.Shader(stage.GetPrimAtPath("/root/_materials/constant/Principled_BSDF"))
|
|
self.assertEqual(shader_surface.GetIdAttr().Get(), "UsdPreviewSurface")
|
|
input_displacement = shader_surface.GetInput('displacement')
|
|
self.assertEqual(input_displacement.HasConnectedSource(), False, "Displacement input should not be connected")
|
|
self.assertAlmostEqual(input_displacement.Get(), 0.45, 5)
|
|
|
|
# Validate various Midlevel and Scale scenarios
|
|
def validate_displacement(mat_name, expected_scale, expected_bias):
|
|
shader_surface = UsdShade.Shader(stage.GetPrimAtPath(f"/root/_materials/{mat_name}/Principled_BSDF"))
|
|
shader_image = UsdShade.Shader(stage.GetPrimAtPath(f"/root/_materials/{mat_name}/Image_Texture"))
|
|
self.assertEqual(shader_surface.GetIdAttr().Get(), "UsdPreviewSurface")
|
|
self.assertEqual(shader_image.GetIdAttr().Get(), "UsdUVTexture")
|
|
input_displacement = shader_surface.GetInput('displacement')
|
|
input_colorspace = shader_image.GetInput('sourceColorSpace')
|
|
input_scale = shader_image.GetInput('scale')
|
|
input_bias = shader_image.GetInput('bias')
|
|
self.assertEqual(input_displacement.HasConnectedSource(), True, "Displacement input should be connected")
|
|
self.assertEqual(input_colorspace.Get(), 'raw')
|
|
self.assertEqual(self.round_vector(input_scale.Get()), expected_scale)
|
|
self.assertEqual(self.round_vector(input_bias.Get()), expected_bias)
|
|
|
|
validate_displacement("mid_0_0", [1.0, 1.0, 1.0, 1.0], [0, 0, 0, 0])
|
|
validate_displacement("mid_0_5", [1.0, 1.0, 1.0, 1.0], [-0.5, -0.5, -0.5, 0])
|
|
validate_displacement("mid_1_0", [1.0, 1.0, 1.0, 1.0], [-1, -1, -1, 0])
|
|
validate_displacement("mid_0_0_scale_0_3", [0.3, 0.3, 0.3, 1.0], [0, 0, 0, 0])
|
|
validate_displacement("mid_0_5_scale_0_3", [0.3, 0.3, 0.3, 1.0], [-0.15, -0.15, -0.15, 0])
|
|
validate_displacement("mid_1_0_scale_0_3", [0.3, 0.3, 0.3, 1.0], [-0.3, -0.3, -0.3, 0])
|
|
|
|
# Validate that no displacement occurs for scenarios USD doesn't support
|
|
shader_surface = UsdShade.Shader(stage.GetPrimAtPath(f"/root/_materials/bad_wrong_space/Principled_BSDF"))
|
|
input_displacement = shader_surface.GetInput('displacement')
|
|
self.assertTrue(input_displacement.Get() is None)
|
|
shader_surface = UsdShade.Shader(stage.GetPrimAtPath(f"/root/_materials/bad_non_const/Principled_BSDF"))
|
|
input_displacement = shader_surface.GetInput('displacement')
|
|
self.assertTrue(input_displacement.Get() is None)
|
|
|
|
def test_export_material_attributes(self):
|
|
"""Validate correct export of Attribute information to UsdPrimvarReaders"""
|
|
|
|
# Use the common materials .blend file
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_attributes.blend"))
|
|
export_path = self.tempdir / "usd_materials_attributes.usda"
|
|
self.export_and_validate(filepath=str(export_path), export_materials=True)
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
shader_attr = UsdShade.Shader(stage.GetPrimAtPath("/root/_materials/Material/Attribute"))
|
|
shader_attr1 = UsdShade.Shader(stage.GetPrimAtPath("/root/_materials/Material/Attribute_001"))
|
|
shader_attr2 = UsdShade.Shader(stage.GetPrimAtPath("/root/_materials/Material/Attribute_002"))
|
|
|
|
self.assertEqual(shader_attr.GetIdAttr().Get(), "UsdPrimvarReader_float3")
|
|
self.assertEqual(shader_attr1.GetIdAttr().Get(), "UsdPrimvarReader_float")
|
|
self.assertEqual(shader_attr2.GetIdAttr().Get(), "UsdPrimvarReader_vector")
|
|
|
|
self.assertEqual(shader_attr.GetInput("varname").Get(), "displayColor")
|
|
self.assertEqual(shader_attr1.GetInput("varname").Get(), "f_float")
|
|
self.assertEqual(shader_attr2.GetInput("varname").Get(), "f_vec")
|
|
|
|
self.assertEqual(shader_attr.GetOutput("result").GetTypeName().type.typeName, "GfVec3f")
|
|
self.assertEqual(shader_attr1.GetOutput("result").GetTypeName().type.typeName, "float")
|
|
self.assertEqual(shader_attr2.GetOutput("result").GetTypeName().type.typeName, "GfVec3f")
|
|
|
|
def test_export_metaballs(self):
|
|
"""Validate correct export of Metaball objects. These are written out as Meshes."""
|
|
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_metaballs.blend"))
|
|
export_path = self.tempdir / "usd_metaballs.usda"
|
|
self.export_and_validate(filepath=str(export_path), evaluation_mode="RENDER")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
# There should be 3 Mesh prims and they should each correspond to the "basis"
|
|
# metaball (i.e. the ones without any numeric suffix)
|
|
mesh_prims = [prim for prim in stage.Traverse() if prim.IsA(UsdGeom.Mesh)]
|
|
prim_names = [prim.GetPath().pathString for prim in mesh_prims]
|
|
self.assertEqual(len(mesh_prims), 3)
|
|
self.assertListEqual(
|
|
sorted(prim_names), ["/root/Ball_A/Ball_A", "/root/Ball_B/Ball_B", "/root/Ball_C/Ball_C"])
|
|
|
|
# Make rough check of vertex counts to ensure geometry is present
|
|
actual_prim_verts = {prim.GetName(): len(UsdGeom.Mesh(prim).GetPointsAttr().Get()) for prim in mesh_prims}
|
|
expected_prim_verts = {"Ball_A": 2232, "Ball_B": 2876, "Ball_C": 1152}
|
|
self.assertDictEqual(actual_prim_verts, expected_prim_verts)
|
|
|
|
def test_particle_hair(self):
|
|
"""Validate correct export of particle hair emitters."""
|
|
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_particle_hair.blend"))
|
|
|
|
# Ensure the hair dynamics are baked for all relevant frames...
|
|
for frame in range(1, 11):
|
|
bpy.context.scene.frame_set(frame)
|
|
bpy.context.scene.frame_set(1)
|
|
|
|
export_path = self.tempdir / "usd_particle_hair.usda"
|
|
self.export_and_validate(
|
|
filepath=str(export_path), export_hair=True, export_animation=True, evaluation_mode="RENDER")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
main_prim = stage.GetPrimAtPath("/root/Sphere")
|
|
hair_prim = stage.GetPrimAtPath("/root/Sphere/ParticleSystem")
|
|
self.assertTrue(main_prim.IsValid())
|
|
self.assertTrue(hair_prim.IsValid())
|
|
|
|
# Ensure we have 5 frames of rotation data for the main Sphere and 10 frames for the hair data
|
|
rot_samples = UsdGeom.Xformable(main_prim).GetRotateXYZOp().GetTimeSamples()
|
|
self.assertEqual(len(rot_samples), 5)
|
|
|
|
hair_curves = UsdGeom.BasisCurves(hair_prim)
|
|
hair_samples = hair_curves.GetPointsAttr().GetTimeSamples()
|
|
self.assertEqual(hair_curves.GetTypeAttr().Get(), "cubic")
|
|
self.assertEqual(hair_curves.GetBasisAttr().Get(), "bspline")
|
|
self.assertEqual(len(hair_samples), 10)
|
|
|
|
def check_primvar(self, prim, pv_name, pv_typeName, pv_interp, elements_len):
|
|
pv = UsdGeom.PrimvarsAPI(prim).GetPrimvar(pv_name)
|
|
self.assertTrue(pv.HasValue())
|
|
self.assertEqual(pv.GetTypeName().type.typeName, pv_typeName)
|
|
self.assertEqual(pv.GetInterpolation(), pv_interp)
|
|
self.assertEqual(len(pv.Get()), elements_len)
|
|
|
|
def check_primvar_missing(self, prim, pv_name):
|
|
pv = UsdGeom.PrimvarsAPI(prim).GetPrimvar(pv_name)
|
|
self.assertFalse(pv.HasValue())
|
|
|
|
def test_export_attributes(self):
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_attribute_test.blend"))
|
|
export_path = self.tempdir / "usd_attribute_test.usda"
|
|
self.export_and_validate(filepath=str(export_path), evaluation_mode="RENDER")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
# Validate all expected Mesh attributes. Notice that nothing on
|
|
# the Edge domain is supported by USD.
|
|
prim = stage.GetPrimAtPath("/root/Mesh/Mesh")
|
|
|
|
self.check_primvar(prim, "p_bool", "VtArray<bool>", "vertex", 4)
|
|
self.check_primvar(prim, "p_int8", "VtArray<unsigned char>", "vertex", 4)
|
|
self.check_primvar(prim, "p_int32", "VtArray<int>", "vertex", 4)
|
|
self.check_primvar(prim, "p_float", "VtArray<float>", "vertex", 4)
|
|
self.check_primvar(prim, "p_color", "VtArray<GfVec4f>", "vertex", 4)
|
|
self.check_primvar(prim, "p_byte_color", "VtArray<GfVec4f>", "vertex", 4)
|
|
self.check_primvar(prim, "p_vec2", "VtArray<GfVec2f>", "vertex", 4)
|
|
self.check_primvar(prim, "p_vec3", "VtArray<GfVec3f>", "vertex", 4)
|
|
self.check_primvar(prim, "p_quat", "VtArray<GfQuatf>", "vertex", 4)
|
|
self.check_primvar_missing(prim, "p_mat4x4")
|
|
|
|
self.check_primvar_missing(prim, "e_bool")
|
|
self.check_primvar_missing(prim, "e_int8")
|
|
self.check_primvar_missing(prim, "e_int32")
|
|
self.check_primvar_missing(prim, "e_float")
|
|
self.check_primvar_missing(prim, "e_color")
|
|
self.check_primvar_missing(prim, "e_byte_color")
|
|
self.check_primvar_missing(prim, "e_vec2")
|
|
self.check_primvar_missing(prim, "e_vec3")
|
|
self.check_primvar_missing(prim, "e_quat")
|
|
self.check_primvar_missing(prim, "e_mat4x4")
|
|
|
|
self.check_primvar(prim, "f_bool", "VtArray<bool>", "uniform", 1)
|
|
self.check_primvar(prim, "f_int8", "VtArray<unsigned char>", "uniform", 1)
|
|
self.check_primvar(prim, "f_int32", "VtArray<int>", "uniform", 1)
|
|
self.check_primvar(prim, "f_float", "VtArray<float>", "uniform", 1)
|
|
self.check_primvar(prim, "f_color", "VtArray<GfVec4f>", "uniform", 1)
|
|
self.check_primvar(prim, "f_byte_color", "VtArray<GfVec4f>", "uniform", 1)
|
|
self.check_primvar(prim, "displayColor", "VtArray<GfVec3f>", "uniform", 1)
|
|
self.check_primvar(prim, "f_vec2", "VtArray<GfVec2f>", "uniform", 1)
|
|
self.check_primvar(prim, "f_vec3", "VtArray<GfVec3f>", "uniform", 1)
|
|
self.check_primvar(prim, "f_quat", "VtArray<GfQuatf>", "uniform", 1)
|
|
self.check_primvar_missing(prim, "f_mat4x4")
|
|
|
|
self.check_primvar(prim, "fc_bool", "VtArray<bool>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_int8", "VtArray<unsigned char>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_int32", "VtArray<int>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_float", "VtArray<float>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_color", "VtArray<GfVec4f>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_byte_color", "VtArray<GfVec4f>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_vec2", "VtArray<GfVec2f>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_vec3", "VtArray<GfVec3f>", "faceVarying", 4)
|
|
self.check_primvar(prim, "fc_quat", "VtArray<GfQuatf>", "faceVarying", 4)
|
|
self.check_primvar_missing(prim, "fc_mat4x4")
|
|
|
|
prim = stage.GetPrimAtPath("/root/Curve_base/Curves/Curves")
|
|
|
|
self.check_primvar(prim, "p_bool", "VtArray<bool>", "vertex", 24)
|
|
self.check_primvar(prim, "p_int8", "VtArray<unsigned char>", "vertex", 24)
|
|
self.check_primvar(prim, "p_int32", "VtArray<int>", "vertex", 24)
|
|
self.check_primvar(prim, "p_float", "VtArray<float>", "vertex", 24)
|
|
self.check_primvar(prim, "p_color", "VtArray<GfVec4f>", "vertex", 24)
|
|
self.check_primvar(prim, "p_byte_color", "VtArray<GfVec4f>", "vertex", 24)
|
|
self.check_primvar(prim, "p_vec2", "VtArray<GfVec2f>", "vertex", 24)
|
|
self.check_primvar(prim, "p_vec3", "VtArray<GfVec3f>", "vertex", 24)
|
|
self.check_primvar(prim, "p_quat", "VtArray<GfQuatf>", "vertex", 24)
|
|
self.check_primvar_missing(prim, "p_mat4x4")
|
|
|
|
self.check_primvar(prim, "sp_bool", "VtArray<bool>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_int8", "VtArray<unsigned char>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_int32", "VtArray<int>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_float", "VtArray<float>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_color", "VtArray<GfVec4f>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_byte_color", "VtArray<GfVec4f>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_vec2", "VtArray<GfVec2f>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_vec3", "VtArray<GfVec3f>", "uniform", 2)
|
|
self.check_primvar(prim, "sp_quat", "VtArray<GfQuatf>", "uniform", 2)
|
|
self.check_primvar_missing(prim, "sp_mat4x4")
|
|
|
|
prim = stage.GetPrimAtPath("/root/Curve_bezier_base/Curves_bezier/Curves")
|
|
|
|
self.check_primvar(prim, "p_bool", "VtArray<bool>", "varying", 10)
|
|
self.check_primvar(prim, "p_int8", "VtArray<unsigned char>", "varying", 10)
|
|
self.check_primvar(prim, "p_int32", "VtArray<int>", "varying", 10)
|
|
self.check_primvar(prim, "p_float", "VtArray<float>", "varying", 10)
|
|
self.check_primvar(prim, "p_color", "VtArray<GfVec4f>", "varying", 10)
|
|
self.check_primvar(prim, "p_byte_color", "VtArray<GfVec4f>", "varying", 10)
|
|
self.check_primvar(prim, "p_vec2", "VtArray<GfVec2f>", "varying", 10)
|
|
self.check_primvar(prim, "p_vec3", "VtArray<GfVec3f>", "varying", 10)
|
|
self.check_primvar(prim, "p_quat", "VtArray<GfQuatf>", "varying", 10)
|
|
self.check_primvar_missing(prim, "p_mat4x4")
|
|
|
|
self.check_primvar(prim, "sp_bool", "VtArray<bool>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_int8", "VtArray<unsigned char>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_int32", "VtArray<int>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_float", "VtArray<float>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_color", "VtArray<GfVec4f>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_byte_color", "VtArray<GfVec4f>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_vec2", "VtArray<GfVec2f>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_vec3", "VtArray<GfVec3f>", "uniform", 3)
|
|
self.check_primvar(prim, "sp_quat", "VtArray<GfQuatf>", "uniform", 3)
|
|
self.check_primvar_missing(prim, "sp_mat4x4")
|
|
|
|
def test_export_attributes_varying(self):
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_attribute_varying_test.blend"))
|
|
# Ensure the simulation zone data is baked for all relevant frames...
|
|
for frame in range(1, 16):
|
|
bpy.context.scene.frame_set(frame)
|
|
bpy.context.scene.frame_set(1)
|
|
|
|
export_path = self.tempdir / "usd_attribute_varying_test.usda"
|
|
self.export_and_validate(filepath=str(export_path), export_animation=True, evaluation_mode="RENDER")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
sparse_frames = [4.0, 5.0, 8.0, 9.0, 12.0, 13.0]
|
|
|
|
#
|
|
# Validate Mesh data
|
|
#
|
|
mesh1 = UsdGeom.Mesh(stage.GetPrimAtPath("/root/mesh1/mesh1"))
|
|
mesh2 = UsdGeom.Mesh(stage.GetPrimAtPath("/root/mesh2/mesh2"))
|
|
mesh3 = UsdGeom.Mesh(stage.GetPrimAtPath("/root/mesh3/mesh3"))
|
|
|
|
# Positions (should be sparsely written)
|
|
self.assertEqual(mesh1.GetPointsAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(mesh2.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(mesh3.GetPointsAttr().GetTimeSamples(), [])
|
|
# Velocity (should be sparsely written)
|
|
self.assertEqual(mesh1.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
self.assertEqual(mesh2.GetVelocitiesAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(mesh3.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
# Regular primvar (should be sparsely written)
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(mesh1).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(mesh2).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(mesh3).GetPrimvar("test").GetTimeSamples(), sparse_frames)
|
|
# Extents of the mesh (should be sparsely written)
|
|
self.assertEqual(UsdGeom.Boundable(mesh1).GetExtentAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(UsdGeom.Boundable(mesh2).GetExtentAttr().GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.Boundable(mesh3).GetExtentAttr().GetTimeSamples(), [])
|
|
|
|
#
|
|
# Validate PointCloud data
|
|
#
|
|
points1 = UsdGeom.Points(stage.GetPrimAtPath("/root/pointcloud1/PointCloud"))
|
|
points2 = UsdGeom.Points(stage.GetPrimAtPath("/root/pointcloud2/PointCloud"))
|
|
points3 = UsdGeom.Points(stage.GetPrimAtPath("/root/pointcloud3/PointCloud"))
|
|
points4 = UsdGeom.Points(stage.GetPrimAtPath("/root/pointcloud4/PointCloud"))
|
|
|
|
# Positions (should be sparsely written)
|
|
self.assertEqual(points1.GetPointsAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(points2.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(points3.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(points4.GetPointsAttr().GetTimeSamples(), [])
|
|
# Velocity (should be sparsely written)
|
|
self.assertEqual(points1.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
self.assertEqual(points2.GetVelocitiesAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(points3.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
self.assertEqual(points4.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
# Radius (should be sparsely written)
|
|
self.assertEqual(points1.GetWidthsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(points2.GetWidthsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(points3.GetWidthsAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(points4.GetWidthsAttr().GetTimeSamples(), [])
|
|
# Regular primvar (should be sparsely written)
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(points1).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(points2).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(points3).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(points4).GetPrimvar("test").GetTimeSamples(), sparse_frames)
|
|
# Extents of the point cloud (should be sparsely written)
|
|
self.assertEqual(UsdGeom.Boundable(points1).GetExtentAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(UsdGeom.Boundable(points2).GetExtentAttr().GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.Boundable(points3).GetExtentAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(UsdGeom.Boundable(points4).GetExtentAttr().GetTimeSamples(), [])
|
|
|
|
#
|
|
# Validate BasisCurve data
|
|
#
|
|
curves1 = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/curves_plane1/curves1/Curves"))
|
|
curves2 = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/curves_plane2/curves2/Curves"))
|
|
curves3 = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/curves_plane3/curves3/Curves"))
|
|
curves4 = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/curves_plane4/curves4/Curves"))
|
|
|
|
# Positions (should be sparsely written)
|
|
self.assertEqual(curves1.GetPointsAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(curves2.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(curves3.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(curves4.GetPointsAttr().GetTimeSamples(), [])
|
|
# Velocity (should be sparsely written)
|
|
self.assertEqual(curves1.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
self.assertEqual(curves2.GetVelocitiesAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(curves3.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
self.assertEqual(curves4.GetVelocitiesAttr().GetTimeSamples(), [])
|
|
# Radius (should be sparsely written)
|
|
self.assertEqual(curves1.GetWidthsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(curves2.GetWidthsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(curves3.GetWidthsAttr().GetTimeSamples(), sparse_frames)
|
|
self.assertEqual(curves4.GetWidthsAttr().GetTimeSamples(), [])
|
|
# Regular primvar (should be sparsely written)
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(curves1).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(curves2).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(curves3).GetPrimvar("test").GetTimeSamples(), [])
|
|
self.assertEqual(UsdGeom.PrimvarsAPI(curves4).GetPrimvar("test").GetTimeSamples(), sparse_frames)
|
|
|
|
def test_export_mesh_subd(self):
|
|
"""Test exporting Subdivision Surface attributes and values"""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_mesh_subd.blend"))
|
|
export_path = self.tempdir / "usd_mesh_subd.usda"
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
export_subdivision='BEST_MATCH',
|
|
evaluation_mode="RENDER",
|
|
)
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_none_boundary_smooth_all/mesh1"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'all')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_corners_boundary_smooth_all/mesh2"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'cornersOnly')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_corners_junctions_boundary_smooth_all/mesh3"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'cornersPlus1')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_corners_junctions_concave_boundary_smooth_all/mesh4"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'cornersPlus2')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_boundaries_boundary_smooth_all/mesh5"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'boundaries')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_all_boundary_smooth_all/mesh6"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'none')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/uv_smooth_boundaries_boundary_smooth_keep/mesh7"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'boundaries')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeAndCorner')
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/crease_verts/crease_verts"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'boundaries')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
self.assertEqual(len(mesh.GetCornerIndicesAttr().Get()), 7)
|
|
usd_vert_sharpness = mesh.GetCornerSharpnessesAttr().Get()
|
|
self.assertEqual(len(usd_vert_sharpness), 7)
|
|
# A 1.0 crease is INFINITE (10) in USD
|
|
self.assertAlmostEqual(min(usd_vert_sharpness), 0.1, 5)
|
|
self.assertEqual(len([sharp for sharp in usd_vert_sharpness if sharp < 10]), 6)
|
|
self.assertEqual(len([sharp for sharp in usd_vert_sharpness if sharp == 10]), 1)
|
|
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/crease_edge/crease_edge"))
|
|
self.assertEqual(mesh.GetSubdivisionSchemeAttr().Get(), 'catmullClark')
|
|
self.assertEqual(mesh.GetFaceVaryingLinearInterpolationAttr().Get(), 'boundaries')
|
|
self.assertEqual(mesh.GetInterpolateBoundaryAttr().Get(), 'edgeOnly')
|
|
self.assertEqual(len(mesh.GetCreaseIndicesAttr().Get()), 20)
|
|
usd_crease_lengths = mesh.GetCreaseLengthsAttr().Get()
|
|
self.assertEqual(len(usd_crease_lengths), 10)
|
|
self.assertTrue(all([length == 2 for length in usd_crease_lengths]))
|
|
usd_crease_sharpness = mesh.GetCreaseSharpnessesAttr().Get()
|
|
self.assertEqual(len(usd_crease_sharpness), 10)
|
|
# A 1.0 crease is INFINITE (10) in USD
|
|
self.assertAlmostEqual(min(usd_crease_sharpness), 0.1, 5)
|
|
self.assertEqual(len([sharp for sharp in usd_crease_sharpness if sharp < 10]), 9)
|
|
self.assertEqual(len([sharp for sharp in usd_crease_sharpness if sharp == 10]), 1)
|
|
|
|
def test_export_mesh_triangulate(self):
|
|
"""Test exporting with different triangulation options for meshes."""
|
|
|
|
# Use the current scene to create simple geometry to triangulate
|
|
bpy.ops.mesh.primitive_plane_add(size=1)
|
|
bpy.ops.mesh.primitive_circle_add(fill_type='NGON', radius=1, vertices=7)
|
|
|
|
# We assume that triangulation is thoroughly tested elsewhere. Here we are only interested
|
|
# in checking that USD passes its operator properties through correctly. We use a minimal
|
|
# combination of quad and ngon methods to test.
|
|
tri_export_path1 = self.tempdir / "usd_mesh_tri_setup1.usda"
|
|
self.export_and_validate(
|
|
filepath=str(tri_export_path1),
|
|
triangulate_meshes=True,
|
|
quad_method='FIXED',
|
|
ngon_method='BEAUTY',
|
|
evaluation_mode="RENDER",
|
|
)
|
|
|
|
tri_export_path2 = self.tempdir / "usd_mesh_tri_setup2.usda"
|
|
self.export_and_validate(
|
|
filepath=str(tri_export_path2),
|
|
triangulate_meshes=True,
|
|
quad_method='FIXED_ALTERNATE',
|
|
ngon_method='CLIP',
|
|
evaluation_mode="RENDER",
|
|
)
|
|
|
|
stage1 = Usd.Stage.Open(str(tri_export_path1))
|
|
stage2 = Usd.Stage.Open(str(tri_export_path2))
|
|
|
|
# The Plane should have different vertex ordering because of the quad methods chosen
|
|
plane1 = UsdGeom.Mesh(stage1.GetPrimAtPath("/root/Plane/Plane"))
|
|
plane2 = UsdGeom.Mesh(stage2.GetPrimAtPath("/root/Plane/Plane"))
|
|
indices1 = plane1.GetFaceVertexIndicesAttr().Get()
|
|
indices2 = plane2.GetFaceVertexIndicesAttr().Get()
|
|
self.assertEqual(len(indices1), 6)
|
|
self.assertEqual(len(indices2), 6)
|
|
self.assertNotEqual(indices1, indices2)
|
|
|
|
# The Circle should have different vertex ordering because of the ngon methods chosen
|
|
circle1 = UsdGeom.Mesh(stage1.GetPrimAtPath("/root/Circle/Circle"))
|
|
circle2 = UsdGeom.Mesh(stage2.GetPrimAtPath("/root/Circle/Circle"))
|
|
indices1 = circle1.GetFaceVertexIndicesAttr().Get()
|
|
indices2 = circle2.GetFaceVertexIndicesAttr().Get()
|
|
self.assertEqual(len(indices1), 15)
|
|
self.assertEqual(len(indices2), 15)
|
|
self.assertNotEqual(indices1, indices2)
|
|
|
|
def test_export_curves(self):
|
|
"""Test exporting Curve types"""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_curves_test.blend"))
|
|
export_path = self.tempdir / "usd_curves_test.usda"
|
|
self.export_and_validate(filepath=str(export_path), evaluation_mode="RENDER")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
def check_basis_curve(prim, basis, curve_type, wrap, vert_counts, extent):
|
|
self.assertEqual(prim.GetBasisAttr().Get(), basis)
|
|
self.assertEqual(prim.GetTypeAttr().Get(), curve_type)
|
|
self.assertEqual(prim.GetWrapAttr().Get(), wrap)
|
|
self.assertEqual(prim.GetWidthsInterpolation(), "varying" if basis == "bezier" else "vertex")
|
|
self.assertEqual(prim.GetCurveVertexCountsAttr().Get(), vert_counts)
|
|
usd_extent = prim.GetExtentAttr().Get()
|
|
self.assertEqual(self.round_vector(usd_extent[0]), extent[0])
|
|
self.assertEqual(self.round_vector(usd_extent[1]), extent[1])
|
|
|
|
def check_nurbs_curve(prim, cyclic, orders, vert_counts, knots_count, extent):
|
|
self.assertEqual(prim.GetOrderAttr().Get(), orders)
|
|
self.assertEqual(prim.GetCurveVertexCountsAttr().Get(), vert_counts)
|
|
self.assertEqual(prim.GetWidthsInterpolation(), "vertex")
|
|
knots = prim.GetKnotsAttr().Get()
|
|
usd_extent = prim.GetExtentAttr().Get()
|
|
self.assertEqual(self.round_vector(usd_extent[0]), extent[0])
|
|
self.assertEqual(self.round_vector(usd_extent[1]), extent[1])
|
|
|
|
curve_count = len(vert_counts)
|
|
self.assertEqual(len(knots), knots_count * curve_count)
|
|
if not cyclic:
|
|
for i in range(0, curve_count):
|
|
zeroth_knot = i * len(knots) // curve_count
|
|
self.assertEqual(knots[zeroth_knot], knots[zeroth_knot + 1], "Knots start rule violated")
|
|
self.assertEqual(
|
|
knots[zeroth_knot + knots_count - 1],
|
|
knots[zeroth_knot + knots_count - 2],
|
|
"Knots end rule violated")
|
|
else:
|
|
self.assertEqual(curve_count, 1, "Validation is only correct for 1 cyclic curve currently")
|
|
self.assertEqual(
|
|
knots[0], knots[1] - (knots[knots_count - 2] - knots[knots_count - 3]), "Knots rule violated")
|
|
self.assertEqual(
|
|
knots[knots_count - 1], knots[knots_count - 2] + (knots[2] - knots[1]), "Knots rule violated")
|
|
|
|
# Contains 3 CatmullRom curves
|
|
curve = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/Cube/Curves/Curves"))
|
|
check_basis_curve(
|
|
curve, "catmullRom", "cubic", "pinned", [8, 8, 8], [[-0.3884, -0.0966, 0.99], [0.2814, -0.0388, 1.31]])
|
|
|
|
# Contains 1 Bezier curve
|
|
curve = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/BezierCurve/BezierCurve"))
|
|
check_basis_curve(curve, "bezier", "cubic", "nonperiodic", [7], [[-3.644, -1.0777, -1.0], [2.0, 1.9815, 1.0]])
|
|
|
|
# Contains 1 Bezier curve
|
|
curve = UsdGeom.BasisCurves(stage.GetPrimAtPath("/root/BezierCircle/BezierCircle"))
|
|
check_basis_curve(curve, "bezier", "cubic", "periodic", [12], [[-2.0, -2.0, -1.0], [2.0, 2.0, 1.0]])
|
|
|
|
# Contains 2 NURBS curves
|
|
curve = UsdGeom.NurbsCurves(stage.GetPrimAtPath("/root/NurbsCurve/NurbsCurve"))
|
|
check_nurbs_curve(curve, False, [4, 4], [6, 6], 10, [[-1.75, -2.6891, -1.0117], [3.0896, 1.9583, 1.0293]])
|
|
|
|
# Contains 1 NURBS curve
|
|
curve = UsdGeom.NurbsCurves(stage.GetPrimAtPath("/root/NurbsCircle/NurbsCircle"))
|
|
check_nurbs_curve(curve, True, [3], [8], 13, [[-2.0, -2.0, -1.0], [2.0, 2.0, 1.0]])
|
|
|
|
def test_export_animation(self):
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_anim_test.blend"))
|
|
export_path = self.tempdir / "usd_anim_test.usda"
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
export_animation=True,
|
|
evaluation_mode="RENDER",
|
|
)
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
# Validate the simple object animation
|
|
prim = stage.GetPrimAtPath("/root/cube_anim_xform")
|
|
self.assertEqual(prim.GetTypeName(), "Xform")
|
|
loc_samples = UsdGeom.Xformable(prim).GetTranslateOp().GetTimeSamples()
|
|
rot_samples = UsdGeom.Xformable(prim).GetRotateXYZOp().GetTimeSamples()
|
|
scale_samples = UsdGeom.Xformable(prim).GetScaleOp().GetTimeSamples()
|
|
self.assertEqual(loc_samples, [1.0, 2.0, 3.0, 4.0])
|
|
self.assertEqual(rot_samples, [1.0])
|
|
self.assertEqual(scale_samples, [1.0])
|
|
|
|
prim = stage.GetPrimAtPath("/root/cube_anim_xform/cube_anim_child")
|
|
self.assertEqual(prim.GetTypeName(), "Xform")
|
|
loc_samples = UsdGeom.Xformable(prim).GetTranslateOp().GetTimeSamples()
|
|
rot_samples = UsdGeom.Xformable(prim).GetRotateXYZOp().GetTimeSamples()
|
|
scale_samples = UsdGeom.Xformable(prim).GetScaleOp().GetTimeSamples()
|
|
self.assertEqual(loc_samples, [1.0])
|
|
self.assertEqual(rot_samples, [1.0, 2.0, 3.0, 4.0])
|
|
self.assertEqual(scale_samples, [1.0])
|
|
|
|
# Validate the armature animation
|
|
prim = stage.GetPrimAtPath("/root/Armature/Armature")
|
|
self.assertEqual(prim.GetTypeName(), "Skeleton")
|
|
prim_skel = UsdSkel.BindingAPI(prim)
|
|
anim = UsdSkel.Animation(prim_skel.GetAnimationSource())
|
|
self.assertEqual(anim.GetPrim().GetName(), "ArmatureAction_001")
|
|
self.assertEqual(anim.GetJointsAttr().Get(),
|
|
['Bone',
|
|
'Bone/Bone_001',
|
|
'Bone/Bone_001/Bone_002',
|
|
'Bone/Bone_001/Bone_002/Bone_003',
|
|
'Bone/Bone_001/Bone_002/Bone_003/Bone_004'])
|
|
loc_samples = anim.GetTranslationsAttr().GetTimeSamples()
|
|
rot_samples = anim.GetRotationsAttr().GetTimeSamples()
|
|
scale_samples = anim.GetScalesAttr().GetTimeSamples()
|
|
self.assertEqual(loc_samples, [])
|
|
self.assertEqual(rot_samples, [1.0, 2.0, 3.0])
|
|
self.assertEqual(scale_samples, [])
|
|
|
|
# Validate the shape key animation
|
|
prim = stage.GetPrimAtPath("/root/cube_anim_keys")
|
|
self.assertEqual(prim.GetTypeName(), "SkelRoot")
|
|
prim_skel = UsdSkel.BindingAPI(prim.GetPrimAtPath("cube_anim_keys"))
|
|
self.assertEqual(prim_skel.GetBlendShapesAttr().Get(), ['Key_1'])
|
|
prim_skel = UsdSkel.BindingAPI(prim.GetPrimAtPath("Skel"))
|
|
anim = UsdSkel.Animation(prim_skel.GetAnimationSource())
|
|
weight_samples = anim.GetBlendShapeWeightsAttr().GetTimeSamples()
|
|
self.assertEqual(weight_samples, [1.0, 2.0, 3.0, 4.0, 5.0])
|
|
|
|
def test_export_text(self):
|
|
"""Test various forms of Text/Font export."""
|
|
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_text_test.blend"))
|
|
|
|
export_path = str(self.tempdir / "usd_text_test.usda")
|
|
self.export_and_validate(filepath=export_path, export_animation=True, evaluation_mode="RENDER")
|
|
|
|
stats = UsdUtils.ComputeUsdStageStats(export_path)
|
|
stage = Usd.Stage.Open(export_path)
|
|
|
|
# There should be 4 meshes in the output
|
|
self.assertEqual(stats['primary']['primCountsByType']['Mesh'], 4)
|
|
|
|
bboxcache_frame1 = UsdGeom.BBoxCache(1.0, [UsdGeom.Tokens.default_])
|
|
bboxcache_frame5 = UsdGeom.BBoxCache(5.0, [UsdGeom.Tokens.default_])
|
|
|
|
# Static, flat, text
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/static/static"))
|
|
bounds1 = bboxcache_frame1.ComputeWorldBound(mesh.GetPrim())
|
|
bbox1 = bounds1.GetRange().GetMax() - bounds1.GetRange().GetMin()
|
|
self.assertEqual(mesh.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(mesh.GetExtentAttr().GetTimeSamples(), [])
|
|
self.assertTrue(bbox1[0] > 0.0)
|
|
self.assertTrue(bbox1[1] > 0.0)
|
|
self.assertAlmostEqual(bbox1[2], 0.0, 5)
|
|
|
|
# Dynamic, flat, text
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/dynamic/dynamic"))
|
|
bounds1 = bboxcache_frame1.ComputeWorldBound(mesh.GetPrim())
|
|
bounds5 = bboxcache_frame5.ComputeWorldBound(mesh.GetPrim())
|
|
bbox1 = bounds1.GetRange().GetMax() - bounds1.GetRange().GetMin()
|
|
bbox5 = bounds5.GetRange().GetMax() - bounds5.GetRange().GetMin()
|
|
self.assertEqual(mesh.GetPointsAttr().GetTimeSamples(), [1.0, 2.0, 3.0, 4.0, 5.0])
|
|
self.assertEqual(mesh.GetExtentAttr().GetTimeSamples(), [1.0, 2.0, 3.0, 4.0, 5.0])
|
|
self.assertEqual(bbox1[2], 0.0)
|
|
self.assertTrue(bbox1[0] < bbox5[0]) # Text grows on x-axis
|
|
self.assertAlmostEqual(bbox1[1], bbox5[1], 5)
|
|
self.assertAlmostEqual(bbox1[2], bbox5[2], 5)
|
|
|
|
# Static, extruded on Z, text
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/extruded/extruded"))
|
|
bounds1 = bboxcache_frame1.ComputeWorldBound(mesh.GetPrim())
|
|
bbox1 = bounds1.GetRange().GetMax() - bounds1.GetRange().GetMin()
|
|
self.assertEqual(mesh.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(mesh.GetExtentAttr().GetTimeSamples(), [])
|
|
self.assertTrue(bbox1[0] > 0.0)
|
|
self.assertTrue(bbox1[1] > 0.0)
|
|
self.assertAlmostEqual(bbox1[2], 0.1, 5)
|
|
|
|
# Static, uses depth, text
|
|
mesh = UsdGeom.Mesh(stage.GetPrimAtPath("/root/has_depth/has_depth"))
|
|
bounds1 = bboxcache_frame1.ComputeWorldBound(mesh.GetPrim())
|
|
bbox1 = bounds1.GetRange().GetMax() - bounds1.GetRange().GetMin()
|
|
self.assertEqual(mesh.GetPointsAttr().GetTimeSamples(), [])
|
|
self.assertEqual(mesh.GetExtentAttr().GetTimeSamples(), [])
|
|
self.assertTrue(bbox1[0] > 0.0)
|
|
self.assertTrue(bbox1[1] > 0.0)
|
|
self.assertAlmostEqual(bbox1[2], 0.1, 5)
|
|
|
|
def test_export_volumes(self):
|
|
"""Test various combinations of volume export including with all supported volume modifiers."""
|
|
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_volumes.blend"))
|
|
# Ensure the simulation zone data is baked for all relevant frames...
|
|
for frame in range(4, 15):
|
|
bpy.context.scene.frame_set(frame)
|
|
bpy.context.scene.frame_set(4)
|
|
|
|
export_path = self.tempdir / "usd_volumes.usda"
|
|
self.export_and_validate(filepath=str(export_path), export_animation=True, evaluation_mode="RENDER")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
# Validate that we see some form of time varyability across the Volume prim's extents and
|
|
# file paths. The data should be sparse so it should only be written on the frames which
|
|
# change.
|
|
|
|
# File sequence
|
|
vol_fileseq = UsdVol.Volume(stage.GetPrimAtPath("/root/vol_filesequence/vol_filesequence"))
|
|
density = UsdVol.OpenVDBAsset(stage.GetPrimAtPath("/root/vol_filesequence/vol_filesequence/density_noise"))
|
|
flame = UsdVol.OpenVDBAsset(stage.GetPrimAtPath("/root/vol_filesequence/vol_filesequence/flame_noise"))
|
|
self.assertEqual(vol_fileseq.GetExtentAttr().GetTimeSamples(), [10.0, 11.0])
|
|
self.assertEqual(density.GetFieldNameAttr().GetTimeSamples(), [])
|
|
self.assertEqual(density.GetFilePathAttr().GetTimeSamples(), [8.0, 9.0, 10.0, 11.0, 12.0, 13.0])
|
|
self.assertEqual(flame.GetFieldNameAttr().GetTimeSamples(), [])
|
|
self.assertEqual(flame.GetFilePathAttr().GetTimeSamples(), [8.0, 9.0, 10.0, 11.0, 12.0, 13.0])
|
|
|
|
# Mesh To Volume
|
|
vol_mesh2vol = UsdVol.Volume(stage.GetPrimAtPath("/root/vol_mesh2vol/vol_mesh2vol"))
|
|
density = UsdVol.OpenVDBAsset(stage.GetPrimAtPath("/root/vol_mesh2vol/vol_mesh2vol/density"))
|
|
self.assertEqual(vol_mesh2vol.GetExtentAttr().GetTimeSamples(),
|
|
[6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0])
|
|
self.assertEqual(density.GetFieldNameAttr().GetTimeSamples(), [])
|
|
self.assertEqual(density.GetFilePathAttr().GetTimeSamples(),
|
|
[4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0])
|
|
|
|
# Volume Displace
|
|
vol_displace = UsdVol.Volume(stage.GetPrimAtPath("/root/vol_displace/vol_displace"))
|
|
unnamed = UsdVol.OpenVDBAsset(stage.GetPrimAtPath("/root/vol_displace/vol_displace/_"))
|
|
self.assertEqual(vol_displace.GetExtentAttr().GetTimeSamples(),
|
|
[5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0])
|
|
self.assertEqual(unnamed.GetFieldNameAttr().GetTimeSamples(), [])
|
|
self.assertEqual(unnamed.GetFilePathAttr().GetTimeSamples(),
|
|
[4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0])
|
|
|
|
# Geometry Node simulation
|
|
vol_sim = UsdVol.Volume(stage.GetPrimAtPath("/root/vol_sim/Volume"))
|
|
density = UsdVol.OpenVDBAsset(stage.GetPrimAtPath("/root/vol_sim/Volume/density"))
|
|
self.assertEqual(vol_sim.GetExtentAttr().GetTimeSamples(),
|
|
[4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0])
|
|
self.assertEqual(density.GetFieldNameAttr().GetTimeSamples(), [])
|
|
self.assertEqual(density.GetFilePathAttr().GetTimeSamples(),
|
|
[4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0])
|
|
|
|
def test_export_xform_ops(self):
|
|
"""Test exporting different xform operation modes."""
|
|
|
|
# Create a simple scene and export using each of our xform op modes
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "empty.blend"))
|
|
loc = [1, 2, 3]
|
|
rot = [math.pi / 4, 0, math.pi / 8]
|
|
scale = [1, 2, 3]
|
|
|
|
bpy.ops.mesh.primitive_plane_add(location=loc, rotation=rot)
|
|
bpy.data.objects[0].scale = scale
|
|
|
|
test_path1 = self.tempdir / "temp_xform_trs_test.usda"
|
|
self.export_and_validate(filepath=str(test_path1), xform_op_mode='TRS')
|
|
|
|
test_path2 = self.tempdir / "temp_xform_tos_test.usda"
|
|
self.export_and_validate(filepath=str(test_path2), xform_op_mode='TOS')
|
|
|
|
test_path3 = self.tempdir / "temp_xform_mat_test.usda"
|
|
self.export_and_validate(filepath=str(test_path3), xform_op_mode='MAT')
|
|
|
|
# Validate relevant details for each case
|
|
stage = Usd.Stage.Open(str(test_path1))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/root/Plane"))
|
|
rot_degs = [math.degrees(rot[0]), math.degrees(rot[1]), math.degrees(rot[2])]
|
|
self.assertEqual(xf.GetXformOpOrderAttr().Get(), ['xformOp:translate', 'xformOp:rotateXYZ', 'xformOp:scale'])
|
|
self.assertEqual(self.round_vector(xf.GetTranslateOp().Get()), loc)
|
|
self.assertEqual(self.round_vector(xf.GetRotateXYZOp().Get()), rot_degs)
|
|
self.assertEqual(self.round_vector(xf.GetScaleOp().Get()), scale)
|
|
|
|
stage = Usd.Stage.Open(str(test_path2))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/root/Plane"))
|
|
orient_quat = xf.GetOrientOp().Get()
|
|
self.assertEqual(xf.GetXformOpOrderAttr().Get(), ['xformOp:translate', 'xformOp:orient', 'xformOp:scale'])
|
|
self.assertEqual(self.round_vector(xf.GetTranslateOp().Get()), loc)
|
|
self.assertEqual(round(orient_quat.GetReal(), 4), 0.9061)
|
|
self.assertEqual(self.round_vector(orient_quat.GetImaginary()), [0.3753, 0.0747, 0.1802])
|
|
self.assertEqual(self.round_vector(xf.GetScaleOp().Get()), scale)
|
|
|
|
stage = Usd.Stage.Open(str(test_path3))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/root/Plane"))
|
|
mat = xf.GetTransformOp().Get()
|
|
mat = [
|
|
self.round_vector(mat[0]), self.round_vector(mat[1]), self.round_vector(mat[2]), self.round_vector(mat[3])
|
|
]
|
|
expected = [
|
|
[0.9239, 0.3827, 0.0, 0.0],
|
|
[-0.5412, 1.3066, 1.4142, 0.0],
|
|
[0.8118, -1.9598, 2.1213, 0.0],
|
|
[1.0, 2.0, 3.0, 1.0]
|
|
]
|
|
self.assertEqual(xf.GetXformOpOrderAttr().Get(), ['xformOp:transform'])
|
|
self.assertEqual(mat, expected)
|
|
|
|
def test_export_orientation(self):
|
|
"""Test exporting different orientation configurations."""
|
|
|
|
# Using the empty scene is fine for checking Stage metadata
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "empty.blend"))
|
|
|
|
test_path1 = self.tempdir / "temp_orientation_yup.usda"
|
|
self.export_and_validate(
|
|
filepath=str(test_path1),
|
|
convert_orientation=True,
|
|
export_global_forward_selection='NEGATIVE_Z',
|
|
export_global_up_selection='Y')
|
|
|
|
test_path2 = self.tempdir / "temp_orientation_zup_rev.usda"
|
|
self.export_and_validate(
|
|
filepath=str(test_path2),
|
|
convert_orientation=True,
|
|
export_global_forward_selection='NEGATIVE_Y',
|
|
export_global_up_selection='Z')
|
|
|
|
stage = Usd.Stage.Open(str(test_path1))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/root"))
|
|
self.assertEqual(self.round_vector(xf.GetRotateXYZOp().Get()), [-90, 0, 0])
|
|
|
|
stage = Usd.Stage.Open(str(test_path2))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/root"))
|
|
self.assertEqual(self.round_vector(xf.GetRotateXYZOp().Get()), [0, 0, 180])
|
|
|
|
# Check one final orientation using no /root xform at all (it's a different code path)
|
|
bpy.ops.mesh.primitive_cube_add()
|
|
|
|
test_path3 = self.tempdir / "temp_orientation_non_root.usda"
|
|
self.export_and_validate(filepath=str(test_path3), convert_orientation=True, root_prim_path="")
|
|
stage = Usd.Stage.Open(str(test_path3))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/Cube"))
|
|
self.assertEqual(self.round_vector(xf.GetRotateXYZOp().Get()), [-90, 0, 0])
|
|
|
|
def test_materialx_network(self):
|
|
"""Test exporting that a MaterialX export makes it out alright"""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_export.blend"))
|
|
export_path = self.tempdir / "materialx.usda"
|
|
|
|
# USD currently has an issue where embedded MaterialX graphs cause validation to fail.
|
|
# Note: We use the below patch for now; keep this in mind if it causes issues in the future.
|
|
# See: https://github.com/PixarAnimationStudios/OpenUSD/pull/3243
|
|
res = self.export_and_validate(
|
|
filepath=str(export_path),
|
|
export_materials=True,
|
|
generate_materialx_network=True,
|
|
evaluation_mode="RENDER",
|
|
)
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
material_prim = stage.GetPrimAtPath("/root/_materials/Material")
|
|
self.assertTrue(material_prim, "Could not find Material prim")
|
|
|
|
self.assertTrue(material_prim.HasAPI(UsdMtlx.MaterialXConfigAPI))
|
|
mtlx_config_api = UsdMtlx.MaterialXConfigAPI(material_prim)
|
|
mtlx_version_attr = mtlx_config_api.GetConfigMtlxVersionAttr()
|
|
self.assertTrue(mtlx_version_attr, "Could not find mtlx config version attribute")
|
|
|
|
material = UsdShade.Material(material_prim)
|
|
mtlx_output = material.GetOutput("mtlx:surface")
|
|
self.assertTrue(mtlx_output, "Could not find mtlx output")
|
|
|
|
connection, source_name, _ = UsdShade.ConnectableAPI.GetConnectedSource(
|
|
mtlx_output
|
|
) or [None, None, None]
|
|
|
|
self.assertTrue((connection and source_name), "Could not find mtlx output source")
|
|
|
|
shader = UsdShade.Shader(connection.GetPrim())
|
|
self.assertTrue(shader, "Connected prim is not a shader")
|
|
|
|
shader_id = shader.GetIdAttr().Get()
|
|
self.assertEqual(shader_id, "ND_open_pbr_surface_surfaceshader", "Shader is not an OpenPBR Surface")
|
|
|
|
def test_hooks(self):
|
|
"""Validate USD Hook integration for both import and export"""
|
|
|
|
# Create a simple scene with 1 object and 1 material
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "empty.blend"))
|
|
material = bpy.data.materials.new(name="test_material")
|
|
material.use_nodes = True
|
|
bpy.ops.mesh.primitive_plane_add()
|
|
bpy.data.objects[0].data.materials.append(material)
|
|
|
|
# Register both USD hooks
|
|
bpy.utils.register_class(USDHook1)
|
|
bpy.utils.register_class(USDHook2)
|
|
|
|
# Instruct them to do various actions inside their implementation
|
|
USDHookBase.instructions = {
|
|
"on_material_export": ["return False", "return True"],
|
|
"on_export": ["throw", "return True"],
|
|
"on_import": ["throw", "return True"],
|
|
}
|
|
|
|
USDHookBase.responses = {
|
|
"on_material_export": [],
|
|
"on_export": [],
|
|
"on_import": [],
|
|
}
|
|
|
|
test_path = self.tempdir / "hook.usda"
|
|
|
|
try:
|
|
self.export_and_validate(filepath=str(test_path))
|
|
except:
|
|
pass
|
|
|
|
try:
|
|
bpy.ops.wm.usd_import(filepath=str(test_path))
|
|
except:
|
|
pass
|
|
|
|
# Unregister the hooks. We do this here in case the following asserts fail.
|
|
bpy.utils.unregister_class(USDHook1)
|
|
bpy.utils.unregister_class(USDHook2)
|
|
|
|
# Validate that the Hooks executed and responded accordingly...
|
|
self.assertEqual(USDHookBase.responses["on_material_export"], ["returned False", "returned True"])
|
|
self.assertEqual(USDHookBase.responses["on_export"], ["threw exception", "returned True"])
|
|
self.assertEqual(USDHookBase.responses["on_import"], ["threw exception", "returned True"])
|
|
|
|
# Now that the hooks are unregistered they should not be executed for import and export.
|
|
USDHookBase.responses = {
|
|
"on_material_export": [],
|
|
"on_export": [],
|
|
"on_import": [],
|
|
}
|
|
self.export_and_validate(filepath=str(test_path))
|
|
self.export_and_validate(filepath=str(test_path))
|
|
self.assertEqual(USDHookBase.responses["on_material_export"], [])
|
|
self.assertEqual(USDHookBase.responses["on_export"], [])
|
|
self.assertEqual(USDHookBase.responses["on_import"], [])
|
|
|
|
def test_merge_parent_xform_false(self):
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_hierarchy_export_test.blend"))
|
|
|
|
test_path = self.tempdir / "test_merge_parent_xform_false.usda"
|
|
|
|
self.export_and_validate(filepath=str(test_path), merge_parent_xform=False)
|
|
|
|
expected = (
|
|
("/root", "Xform"),
|
|
("/root/Dupli1", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0/Face", "Mesh"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Ear_R_2", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Ear_R_2/Ear", "Mesh"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Ear_L_1", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Ear_L_1/Ear", "Mesh"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Nose_3", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Nose_3/Nose", "Mesh"),
|
|
("/root/_materials", "Scope"),
|
|
("/root/_materials/Head", "Material"),
|
|
("/root/_materials/Head/Principled_BSDF", "Shader"),
|
|
("/root/_materials/Nose", "Material"),
|
|
("/root/_materials/Nose/Principled_BSDF", "Shader"),
|
|
("/root/ParentOfDupli2", "Xform"),
|
|
("/root/ParentOfDupli2/Icosphere", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/Face", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Ear_L_1", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Ear_L_1/Ear", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Ear_R_2", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Ear_R_2/Ear", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Nose_3", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Nose_3/Nose", "Mesh"),
|
|
("/root/Ground_plane", "Xform"),
|
|
("/root/Ground_plane/Plane", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/Face", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Ear_R", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Ear_R/Ear", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Nose", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Nose/Nose", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Ear_L", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Ear_L/Ear", "Mesh"),
|
|
("/root/Camera", "Xform"),
|
|
("/root/Camera/Camera", "Camera"),
|
|
("/root/env_light", "DomeLight")
|
|
)
|
|
expected = tuple(sorted(expected, key=lambda pair: pair[0]))
|
|
|
|
stage = Usd.Stage.Open(str(test_path))
|
|
actual = ((str(p.GetPath()), p.GetTypeName()) for p in stage.Traverse())
|
|
actual = tuple(sorted(actual, key=lambda pair: pair[0]))
|
|
|
|
self.assertTupleEqual(expected, actual)
|
|
|
|
def test_merge_parent_xform_true(self):
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_hierarchy_export_test.blend"))
|
|
|
|
test_path = self.tempdir / "test_merge_parent_xform_true.usda"
|
|
|
|
self.export_and_validate(filepath=str(test_path), merge_parent_xform=True)
|
|
|
|
expected = (
|
|
("/root", "Xform"),
|
|
("/root/Dupli1", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0", "Xform"),
|
|
("/root/Dupli1/GEO_Head_0/Face", "Mesh"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Ear_R_2", "Mesh"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Ear_L_1", "Mesh"),
|
|
("/root/Dupli1/GEO_Head_0/GEO_Nose_3", "Mesh"),
|
|
("/root/_materials", "Scope"),
|
|
("/root/_materials/Head", "Material"),
|
|
("/root/_materials/Head/Principled_BSDF", "Shader"),
|
|
("/root/_materials/Nose", "Material"),
|
|
("/root/_materials/Nose/Principled_BSDF", "Shader"),
|
|
("/root/ParentOfDupli2", "Xform"),
|
|
("/root/ParentOfDupli2/Icosphere", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0", "Xform"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/Face", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Ear_L_1", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Ear_R_2", "Mesh"),
|
|
("/root/ParentOfDupli2/Dupli2/GEO_Head_0/GEO_Nose_3", "Mesh"),
|
|
("/root/Ground_plane", "Xform"),
|
|
("/root/Ground_plane/Plane", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head", "Xform"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/Face", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Ear_R", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Nose", "Mesh"),
|
|
("/root/Ground_plane/OutsideDupliGrandParent/OutsideDupliParent/GEO_Head/GEO_Ear_L", "Mesh"),
|
|
("/root/Camera", "Camera"),
|
|
("/root/env_light", "DomeLight")
|
|
)
|
|
|
|
expected = tuple(sorted(expected, key=lambda pair: pair[0]))
|
|
|
|
stage = Usd.Stage.Open(str(test_path))
|
|
actual = ((str(p.GetPath()), p.GetTypeName()) for p in stage.Traverse())
|
|
actual = tuple(sorted(actual, key=lambda pair: pair[0]))
|
|
|
|
self.assertTupleEqual(expected, actual)
|
|
|
|
def test_export_units(self):
|
|
"""Test specifying stage meters per unit on export."""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "empty.blend"))
|
|
|
|
# Check all unit conversions we support
|
|
units = (
|
|
("mm", 'MILLIMETERS', 0.001), ("cm", 'CENTIMETERS', 0.01), ("km", 'KILOMETERS', 1000),
|
|
("in", 'INCHES', 0.0254), ("ft", 'FEET', 0.3048), ("yd", 'YARDS', 0.9144),
|
|
("default", "", 1), ("custom", 'CUSTOM', 0.125)
|
|
)
|
|
for name, unit, value in units:
|
|
export_path = self.tempdir / f"usd_export_units_test_{name}.usda"
|
|
if name == "default":
|
|
self.export_and_validate(filepath=str(export_path))
|
|
elif name == "custom":
|
|
self.export_and_validate(filepath=str(export_path), convert_scene_units=unit, meters_per_unit=value)
|
|
else:
|
|
self.export_and_validate(filepath=str(export_path), convert_scene_units=unit)
|
|
|
|
# Verify that the Stage meters per unit metadata is set correctly
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
self.assertEqual(UsdGeom.GetStageMetersPerUnit(stage), value)
|
|
|
|
# Verify that the /root xform has the expected scale (the default case should be empty)
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/root"))
|
|
if name == "default":
|
|
self.assertFalse(xf.GetScaleOp().GetAttr().IsValid())
|
|
else:
|
|
scale = self.round_vector([1.0 / value] * 3)
|
|
self.assertEqual(self.round_vector(xf.GetScaleOp().Get()), scale)
|
|
|
|
# Check one final unit conversion using no /root xform at all (it's a different code path)
|
|
bpy.ops.mesh.primitive_cube_add()
|
|
|
|
export_path = self.tempdir / f"usd_export_units_test_non_root.usda"
|
|
self.export_and_validate(filepath=str(export_path), convert_scene_units="CENTIMETERS", root_prim_path="")
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
xf = UsdGeom.Xformable(stage.GetPrimAtPath("/Cube"))
|
|
self.assertEqual(self.round_vector(xf.GetScaleOp().Get()), [100, 100, 100])
|
|
|
|
def test_export_native_instancing_true(self):
|
|
"""Test exporting instanced objects to native (scne graph) instances."""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "nested_instancing_test.blend"))
|
|
|
|
export_path = self.tempdir / "usd_export_nested_instancing_true.usda"
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
use_instancing=True
|
|
)
|
|
|
|
# The USD should contain two instances of a plane which has two
|
|
# instances of a point cloud as children.
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
stats = UsdUtils.ComputeUsdStageStats(stage)
|
|
self.assertEqual(stats['totalInstanceCount'], 6, "Unexpected number of instances")
|
|
self.assertEqual(stats['prototypeCount'], 2, "Unexpected number of prototypes")
|
|
self.assertEqual(stats['primary']['primCountsByType']['Mesh'], 1, "Unexpected number of primary meshes")
|
|
self.assertEqual(stats['primary']['primCountsByType']['Points'], 1, "Unexpected number of primary point clouds")
|
|
self.assertEqual(stats['prototypes']['primCountsByType']['Mesh'], 1, "Unexpected number of prototype meshes")
|
|
self.assertEqual(stats['prototypes']['primCountsByType']['Points'],
|
|
1, "Unexpected number of prototype point clouds")
|
|
|
|
# Get the prototypes root.
|
|
protos_root_path = Sdf.Path("/root/prototypes")
|
|
prim = stage.GetPrimAtPath(protos_root_path)
|
|
assert prim
|
|
self.assertTrue(prim.IsAbstract())
|
|
|
|
# Get the first plane instance.
|
|
prim = stage.GetPrimAtPath("/root/plane_001/Plane_0")
|
|
assert prim
|
|
assert prim.IsInstance()
|
|
|
|
# Get the second plane instance.
|
|
prim = stage.GetPrimAtPath("/root/plane/Plane_0")
|
|
assert prim
|
|
assert prim.IsInstance()
|
|
|
|
# Ensure all the prototype paths are under the pototypes root.
|
|
for prim in stage.Traverse():
|
|
if prim.IsInstance():
|
|
arcs = Usd.PrimCompositionQuery.GetDirectReferences(prim).GetCompositionArcs()
|
|
for arc in arcs:
|
|
target_path = arc.GetTargetPrimPath()
|
|
self.assertTrue(target_path.HasPrefix(protos_root_path))
|
|
|
|
def test_export_native_instancing_false(self):
|
|
"""Test exporting instanced objects with instancing disabled."""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "nested_instancing_test.blend"))
|
|
|
|
export_path = self.tempdir / "usd_export_nested_instancing_false.usda"
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
use_instancing=False
|
|
)
|
|
|
|
# The USD should contain no instances.
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
|
|
stats = UsdUtils.ComputeUsdStageStats(stage)
|
|
self.assertEqual(stats['totalInstanceCount'], 0, "Unexpected number of instances")
|
|
self.assertEqual(stats['prototypeCount'], 0, "Unexpected number of prototypes")
|
|
self.assertEqual(stats['primary']['primCountsByType']['Mesh'], 2, "Unexpected number of primary meshes")
|
|
self.assertEqual(stats['primary']['primCountsByType']['Points'], 4, "Unexpected number of primary point clouds")
|
|
|
|
def test_texture_export_hook(self):
|
|
"""Exporting textures from on_material_export USD hook."""
|
|
|
|
# Clear USD hook results.
|
|
ExportTextureUSDHook.exported_textures = {}
|
|
|
|
bpy.utils.register_class(ExportTextureUSDHook)
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_export.blend"))
|
|
|
|
export_path = self.tempdir / "usd_materials_export.usda"
|
|
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
export_materials=True,
|
|
generate_preview_surface=False,
|
|
)
|
|
|
|
# Verify that the exported texture paths were returned as expected.
|
|
expected = {'/root/_materials/Transforms': './textures/test_grid_<UDIM>.png',
|
|
'/root/_materials/Clip_With_Round': './textures/test_grid_<UDIM>.png',
|
|
'/root/_materials/NormalMap': './textures/test_normal.exr',
|
|
'/root/_materials/Material': './textures/test_grid_<UDIM>.png',
|
|
'/root/_materials/Clip_With_LessThanInvert': './textures/test_grid_<UDIM>.png',
|
|
'/root/_materials/NormalMap_Scale_Bias': './textures/test_normal_invertY.exr'}
|
|
|
|
self.assertDictEqual(ExportTextureUSDHook.exported_textures,
|
|
expected,
|
|
"Unexpected texture export paths")
|
|
|
|
bpy.utils.unregister_class(ExportTextureUSDHook)
|
|
|
|
# Verify that the texture files were copied as expected.
|
|
tex_names = ['test_grid_1001.png', 'test_grid_1002.png',
|
|
'test_normal.exr', 'test_normal_invertY.exr']
|
|
|
|
for name in tex_names:
|
|
tex_path = self.tempdir / "textures" / name
|
|
self.assertTrue(tex_path.exists(),
|
|
f"Exported texture {tex_path} doesn't exist")
|
|
|
|
def test_inmem_pack_texture_export_hook(self):
|
|
"""Exporting packed and in memory textures from on_material_export USD hook."""
|
|
|
|
# Clear hook results.
|
|
ExportTextureUSDHook.exported_textures = {}
|
|
|
|
bpy.utils.register_class(ExportTextureUSDHook)
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_materials_inmem_pack.blend"))
|
|
|
|
export_path = self.tempdir / "usd_materials_inmem_pack.usda"
|
|
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
export_materials=True,
|
|
generate_preview_surface=False,
|
|
)
|
|
|
|
# Verify that the exported texture paths were returned as expected.
|
|
expected = {'/root/_materials/MAT_pack_udim': './textures/test_grid_<UDIM>.png',
|
|
'/root/_materials/MAT_pack_single': './textures/test_single.png',
|
|
'/root/_materials/MAT_inmem_udim': './textures/inmem_udim.<UDIM>.png',
|
|
'/root/_materials/MAT_inmem_single': './textures/inmem_single.png'}
|
|
|
|
self.assertDictEqual(ExportTextureUSDHook.exported_textures,
|
|
expected,
|
|
"Unexpected texture export paths")
|
|
|
|
bpy.utils.unregister_class(ExportTextureUSDHook)
|
|
|
|
# Verify that the texture files were copied as expected.
|
|
tex_names = ['test_grid_1001.png', 'test_grid_1002.png',
|
|
'test_single.png',
|
|
'inmem_udim.1001.png', 'inmem_udim.1002.png',
|
|
'inmem_single.png']
|
|
|
|
for name in tex_names:
|
|
tex_path = self.tempdir / "textures" / name
|
|
self.assertTrue(tex_path.exists(),
|
|
f"Exported texture {tex_path} doesn't exist")
|
|
|
|
def test_naming_collision_hierarchy(self):
|
|
"""Validate that naming collisions during export are handled correctly"""
|
|
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "usd_hierarchy_collision.blend"))
|
|
export_path = self.tempdir / "usd_hierarchy_collision.usda"
|
|
self.export_and_validate(filepath=str(export_path))
|
|
|
|
expected = (
|
|
('/root', 'Xform'),
|
|
('/root/Empty', 'Xform'),
|
|
('/root/Empty/Par_002', 'Xform'),
|
|
('/root/Empty/Par_002/Par_1', 'Mesh'),
|
|
('/root/Empty/Par_003', 'Xform'),
|
|
('/root/Empty/Par_003/Par_1', 'Mesh'),
|
|
('/root/Empty/Par_004', 'Xform'),
|
|
('/root/Empty/Par_004/Par_002', 'Mesh'),
|
|
('/root/Empty/Par_1', 'Xform'),
|
|
('/root/Empty/Par_1/Par_1', 'Mesh'),
|
|
('/root/Level1', 'Xform'),
|
|
('/root/Level1/Level2', 'Xform'),
|
|
('/root/Level1/Level2/Par2_002', 'Xform'),
|
|
('/root/Level1/Level2/Par2_002/Par2_002', 'Mesh'),
|
|
('/root/Level1/Level2/Par2_1', 'Xform'),
|
|
('/root/Level1/Level2/Par2_1/Par2_1', 'Mesh'),
|
|
('/root/Level1/Par2_002', 'Xform'),
|
|
('/root/Level1/Par2_002/Par2_1', 'Mesh'),
|
|
('/root/Level1/Par2_1', 'Xform'),
|
|
('/root/Level1/Par2_1/Par2_1', 'Mesh'),
|
|
('/root/Test_002', 'Xform'),
|
|
('/root/Test_002/Test_1', 'Mesh'),
|
|
('/root/Test_003', 'Xform'),
|
|
('/root/Test_003/Test_1', 'Mesh'),
|
|
('/root/Test_004', 'Xform'),
|
|
('/root/Test_004/Test_002', 'Mesh'),
|
|
('/root/Test_1', 'Xform'),
|
|
('/root/Test_1/Test_1', 'Mesh'),
|
|
('/root/env_light', 'DomeLight'),
|
|
('/root/xSource_002', 'Xform'),
|
|
('/root/xSource_002/Dup_002', 'Xform'),
|
|
('/root/xSource_002/Dup_002/Dup_002', 'Mesh'),
|
|
('/root/xSource_002/Dup_002_0', 'Xform'),
|
|
('/root/xSource_002/Dup_002_0/Dup_002', 'Mesh'),
|
|
('/root/xSource_002/Dup_002_1', 'Xform'),
|
|
('/root/xSource_002/Dup_002_1/Dup_002', 'Mesh'),
|
|
('/root/xSource_002/Dup_002_2', 'Xform'),
|
|
('/root/xSource_002/Dup_002_2/Dup_002', 'Mesh'),
|
|
('/root/xSource_002/Dup_002_3', 'Xform'),
|
|
('/root/xSource_002/Dup_002_3/Dup_002', 'Mesh'),
|
|
('/root/xSource_002/Dup_1', 'Xform'),
|
|
('/root/xSource_002/Dup_1/Dup_1', 'Mesh'),
|
|
('/root/xSource_002/Dup_1_0', 'Xform'),
|
|
('/root/xSource_002/Dup_1_0/Dup_1', 'Mesh'),
|
|
('/root/xSource_002/Dup_1_1', 'Xform'),
|
|
('/root/xSource_002/Dup_1_1/Dup_1', 'Mesh'),
|
|
('/root/xSource_002/Dup_1_2', 'Xform'),
|
|
('/root/xSource_002/Dup_1_2/Dup_1', 'Mesh'),
|
|
('/root/xSource_002/Dup_1_3', 'Xform'),
|
|
('/root/xSource_002/Dup_1_3/Dup_1', 'Mesh'),
|
|
('/root/xSource_002/xSource_1', 'Mesh'),
|
|
('/root/xSource_1', 'Xform'),
|
|
('/root/xSource_1/Dup_002', 'Xform'),
|
|
('/root/xSource_1/Dup_002/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1', 'Xform'),
|
|
('/root/xSource_1/Dup_1/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_0', 'Xform'),
|
|
('/root/xSource_1/Dup_1_0/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_001', 'Xform'),
|
|
('/root/xSource_1/Dup_1_001/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_002', 'Xform'),
|
|
('/root/xSource_1/Dup_1_002/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_003', 'Xform'),
|
|
('/root/xSource_1/Dup_1_003/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_004', 'Xform'),
|
|
('/root/xSource_1/Dup_1_004/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_1', 'Xform'),
|
|
('/root/xSource_1/Dup_1_1/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_2', 'Xform'),
|
|
('/root/xSource_1/Dup_1_2/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/Dup_1_3', 'Xform'),
|
|
('/root/xSource_1/Dup_1_3/Dup_1', 'Mesh'),
|
|
('/root/xSource_1/xSource_1', 'Mesh')
|
|
)
|
|
expected = tuple(sorted(expected, key=lambda pair: pair[0]))
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
actual = ((str(p.GetPath()), p.GetTypeName()) for p in stage.Traverse())
|
|
actual = tuple(sorted(actual, key=lambda pair: pair[0]))
|
|
|
|
self.assertTupleEqual(expected, actual)
|
|
|
|
|
|
class USDHookBase:
|
|
instructions = {}
|
|
responses = {}
|
|
|
|
@staticmethod
|
|
def follow_instructions(name, operation):
|
|
instruction = USDHookBase.instructions[operation].pop(0)
|
|
if instruction == "throw":
|
|
USDHookBase.responses[operation].append("threw exception")
|
|
raise RuntimeError(f"** {name} failing {operation} **")
|
|
elif instruction == "return False":
|
|
USDHookBase.responses[operation].append("returned False")
|
|
return False
|
|
|
|
USDHookBase.responses[operation].append("returned True")
|
|
return True
|
|
|
|
@staticmethod
|
|
def do_on_export(name, export_context):
|
|
stage = export_context.get_stage()
|
|
depsgraph = export_context.get_depsgraph()
|
|
if not stage.GetDefaultPrim().IsValid():
|
|
raise RuntimeError("Unexpected failure: bad stage")
|
|
if len(depsgraph.ids) == 0:
|
|
raise RuntimeError("Unexpected failure: bad depsgraph")
|
|
|
|
return USDHookBase.follow_instructions(name, "on_export")
|
|
|
|
@staticmethod
|
|
def do_on_material_export(name, export_context, bl_material, usd_material):
|
|
stage = export_context.get_stage()
|
|
if stage.expired:
|
|
raise RuntimeError("Unexpected failure: bad stage")
|
|
if not usd_material.GetPrim().IsValid():
|
|
raise RuntimeError("Unexpected failure: bad usd_material")
|
|
if bl_material is None:
|
|
raise RuntimeError("Unexpected failure: bad bl_material")
|
|
|
|
return USDHookBase.follow_instructions(name, "on_material_export")
|
|
|
|
@staticmethod
|
|
def do_on_import(name, import_context):
|
|
stage = import_context.get_stage()
|
|
if not stage.GetDefaultPrim().IsValid():
|
|
raise RuntimeError("Unexpected failure: bad stage")
|
|
|
|
return USDHookBase.follow_instructions(name, "on_import")
|
|
|
|
|
|
class USDHook1(USDHookBase, bpy.types.USDHook):
|
|
bl_idname = "usd_hook_1"
|
|
bl_label = "Hook 1"
|
|
|
|
@staticmethod
|
|
def on_export(export_context):
|
|
return USDHookBase.do_on_export(USDHook1.bl_label, export_context)
|
|
|
|
@staticmethod
|
|
def on_material_export(export_context, bl_material, usd_material):
|
|
return USDHookBase.do_on_material_export(USDHook1.bl_label, export_context, bl_material, usd_material)
|
|
|
|
@staticmethod
|
|
def on_import(import_context):
|
|
return USDHookBase.do_on_import(USDHook1.bl_label, import_context)
|
|
|
|
|
|
class USDHook2(USDHookBase, bpy.types.USDHook):
|
|
bl_idname = "usd_hook_2"
|
|
bl_label = "Hook 2"
|
|
|
|
@staticmethod
|
|
def on_export(export_context):
|
|
return USDHookBase.do_on_export(USDHook2.bl_label, export_context)
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@staticmethod
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def on_material_export(export_context, bl_material, usd_material):
|
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return USDHookBase.do_on_material_export(USDHook2.bl_label, export_context, bl_material, usd_material)
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|
|
@staticmethod
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def on_import(import_context):
|
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return USDHookBase.do_on_import(USDHook2.bl_label, import_context)
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|
|
|
|
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class ExportTextureUSDHook(bpy.types.USDHook):
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bl_idname = "export_texture_usd_hook"
|
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bl_label = "Export Texture USD Hook"
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|
|
|
exported_textures = {}
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|
|
|
@staticmethod
|
|
def on_material_export(export_context, bl_material, usd_material):
|
|
"""
|
|
If a texture image node exists in the given material's
|
|
node tree, call exprt_texture() on the image and cache
|
|
the returned path.
|
|
"""
|
|
tex_image_node = None
|
|
if bl_material and bl_material.node_tree:
|
|
for node in bl_material.node_tree.nodes:
|
|
if node.type == 'TEX_IMAGE':
|
|
tex_image_node = node
|
|
|
|
if tex_image_node is None:
|
|
return False
|
|
|
|
tex_path = export_context.export_texture(tex_image_node.image)
|
|
|
|
ExportTextureUSDHook.exported_textures[usd_material.GetPath()
|
|
.pathString] = tex_path
|
|
|
|
return True
|
|
|
|
|
|
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, verbosity=0)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|