0c544974d1
This rescales the whole scene by its root transform to match the same visual size while not forcing the user to wait for scale to be applied to each object. This is requested by studios whose main applications / USD scenes are in CM, because referencing and payloading scenes from disparate scales can cause issues at resolution time. If "Apply Unit Scale Conversion" is unchecked on import, the user now has the ability to bring the objects in with a scale factor of 1.0, so that the objects may be edited as if Blender's scene units matches the imported stage's. At export time, a "Stage Meters Per Unit" value can be chosen from a list of common measurements, as well as setting a custom value. Co-authored-by: kiki <charles@skeletalstudios.com> Co-authored-by: Michael Kowalski <makowalski@nvidia.com> Pull Request: https://projects.blender.org/blender/blender/pulls/122804
1432 lines
71 KiB
Python
1432 lines
71 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 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, UsdShade, UsdSkel, UsdUtils, UsdVol
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import bpy
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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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return cls
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def setUp(self):
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self.assertTrue(
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self.testdir.exists(), "Test dir {0} should exist".format(self.testdir)
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)
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def tearDown(self):
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self._tempdir.cleanup()
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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())
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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.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_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_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_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)
|
|
|
|
#
|
|
# 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(), [])
|
|
|
|
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 < 1]), 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 < 1]), 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_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])
|
|
|
|
# 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_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 this
|
|
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])
|
|
|
|
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.
|
|
# Skip validation and just run a regular export until this is fixed.
|
|
# See: https://github.com/PixarAnimationStudios/OpenUSD/pull/3243
|
|
res = bpy.ops.wm.usd_export(
|
|
filepath=str(export_path),
|
|
export_materials=True,
|
|
generate_materialx_network=True,
|
|
evaluation_mode="RENDER",
|
|
)
|
|
self.assertEqual({'FINISHED'}, res, f"Unable to export to {export_path}")
|
|
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
material_prim = stage.GetPrimAtPath("/root/_materials/Material")
|
|
self.assertTrue(material_prim, "Could not find Material prim")
|
|
|
|
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_standard_surface_surfaceshader", "Shader is not a Standard 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")
|
|
)
|
|
|
|
def key(el):
|
|
return el[0]
|
|
|
|
expected = tuple(sorted(expected, key=key))
|
|
|
|
stage = Usd.Stage.Open(str(test_path))
|
|
actual = ((str(p.GetPath()), p.GetTypeName()) for p in stage.Traverse())
|
|
actual = tuple(sorted(actual, key=key))
|
|
|
|
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")
|
|
)
|
|
|
|
def key(el):
|
|
return el[0]
|
|
|
|
expected = tuple(sorted(expected, key=key))
|
|
|
|
stage = Usd.Stage.Open(str(test_path))
|
|
actual = ((str(p.GetPath()), p.GetTypeName()) for p in stage.Traverse())
|
|
actual = tuple(sorted(actual, key=key))
|
|
|
|
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"))
|
|
export_path = self.tempdir / "usd_export_units_test_cm.usda"
|
|
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
convert_scene_units='CENTIMETERS'
|
|
)
|
|
|
|
# Verify that meters per unit were set correctly
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
mpu = UsdGeom.GetStageMetersPerUnit(stage)
|
|
self.assertEqual(mpu, 0.01)
|
|
|
|
# Export with default meters units.
|
|
export_path = self.tempdir / "usd_export_units_test_default.usda"
|
|
|
|
self.export_and_validate(
|
|
filepath=str(export_path)
|
|
)
|
|
|
|
# Verify that meters per unit were set correctly
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
mpu = UsdGeom.GetStageMetersPerUnit(stage)
|
|
self.assertEqual(mpu, 1.0)
|
|
|
|
# Export with custom meters per unit.
|
|
export_path = self.tempdir / "usd_export_units_test_custom.usda"
|
|
|
|
self.export_and_validate(
|
|
filepath=str(export_path),
|
|
convert_scene_units='CUSTOM',
|
|
meters_per_unit=0.1,
|
|
)
|
|
|
|
# Verify that meters per unit were set correctly
|
|
stage = Usd.Stage.Open(str(export_path))
|
|
mpu = UsdGeom.GetStageMetersPerUnit(stage)
|
|
self.assertAlmostEqual(mpu, 0.1)
|
|
|
|
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")
|
|
|
|
|
|
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)
|
|
|
|
@staticmethod
|
|
def on_material_export(export_context, bl_material, usd_material):
|
|
return USDHookBase.do_on_material_export(USDHook2.bl_label, export_context, bl_material, usd_material)
|
|
|
|
@staticmethod
|
|
def on_import(import_context):
|
|
return USDHookBase.do_on_import(USDHook2.bl_label, import_context)
|
|
|
|
|
|
class ExportTextureUSDHook(bpy.types.USDHook):
|
|
bl_idname = "export_texture_usd_hook"
|
|
bl_label = "Export Texture USD Hook"
|
|
|
|
exported_textures = {}
|
|
|
|
@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)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|