def testExport_GeomModelAPI_MotionAPI(self):
"""Tests export with both the GeomModelAPI and MotionAPI."""
cmds.file(new=True, force=True)
cmds.usdImport(file=self.inputUsdFile,
shadingMode=[
["none", "default"],
],
apiSchema=['GeomModelAPI', 'MotionAPI'])
newUsdFilePath = os.path.abspath('UsdAttrsNew_TwoAPIs.usda')
# usdExport used to export all API schemas found as dynamic attributes. We now
# require the list to be explicit, mirroring the way usdImport works.
cmds.usdExport(file=newUsdFilePath,
shadingMode='none',
apiSchema=['GeomModelAPI', 'MotionAPI'])
newUsdStage = Usd.Stage.Open(newUsdFilePath)
world = newUsdStage.GetPrimAtPath('/World')
self.assertEqual(world.GetAppliedSchemas(),
['MotionAPI', 'GeomModelAPI'])
geomModelAPI = UsdGeom.ModelAPI(world)
self.assertEqual(geomModelAPI.GetModelCardTextureXPosAttr().Get(),
'right.png')
motionAPI = UsdGeom.MotionAPI(world)
self.assertAlmostEqual(motionAPI.GetVelocityScaleAttr().Get(),
4.2,
places=6)
def test_Basic(self):
stage = Usd.Stage.CreateInMemory()
self.assertTrue(stage)
# When velocityScale is authored on parent root, child that does
# not author (Child1) inherits from parent, but child that does
# author computes its own value (Child2)
root1 = UsdGeom.Xform.Define(stage, '/root1')
UsdGeom.MotionAPI(root1).CreateVelocityScaleAttr(0.5)
root1Child1 = UsdGeom.Mesh.Define(stage, '/root1/mesh1')
self.assertEqual(
UsdGeom.MotionAPI(root1Child1).ComputeVelocityScale(), 0.5)
root1Child2 = UsdGeom.Mesh.Define(stage, '/root1/mesh2')
UsdGeom.MotionAPI(root1Child2).CreateVelocityScaleAttr(2.0)
self.assertEqual(
UsdGeom.MotionAPI(root1Child2).ComputeVelocityScale(), 2.0)
# When nothing is authord anywhere, fallback is 1.0
root2 = UsdGeom.Xform.Define(stage, '/root2')
root2Child = UsdGeom.Mesh.Define(stage, '/root2/mesh')
self.assertEqual(
UsdGeom.MotionAPI(root2Child).ComputeVelocityScale(), 1.0)
def testExport_GeomModelAPI_MotionAPI(self):
"""Tests export with both the GeomModelAPI and MotionAPI."""
cmds.file(new=True, force=True)
cmds.usdImport(file=self.inputUsdFile,
shadingMode='none',
apiSchema=['GeomModelAPI', 'MotionAPI'])
newUsdFilePath = os.path.abspath('UsdAttrsNew_TwoAPIs.usda')
cmds.usdExport(file=newUsdFilePath, shadingMode='none')
newUsdStage = Usd.Stage.Open(newUsdFilePath)
world = newUsdStage.GetPrimAtPath('/World')
self.assertEqual(world.GetAppliedSchemas(),
['MotionAPI', 'GeomModelAPI'])
geomModelAPI = UsdGeom.ModelAPI(world)
self.assertEqual(geomModelAPI.GetModelCardTextureXPosAttr().Get(),
'right.png')
motionAPI = UsdGeom.MotionAPI(world)
self.assertAlmostEqual(motionAPI.GetVelocityScaleAttr().Get(),
4.2,
places=6)
def test_Basic(self):
stage = Usd.Stage.CreateInMemory()
self.assertTrue(stage)
# When blurScale/nonlinearSampleCount is authored on parent root,
# child that does not apply and author (Child1) inherits from parent,
# but child that does author computes its own value (Child2)
root1 = UsdGeom.Xform.Define(stage, '/root1')
UsdGeom.MotionAPI.Apply(root1.GetPrim()).CreateMotionBlurScaleAttr(0.5)
UsdGeom.MotionAPI.Apply(
root1.GetPrim()).CreateNonlinearSampleCountAttr(5)
root1Child1 = UsdGeom.Mesh.Define(stage, '/root1/mesh1')
self.assertEqual(
UsdGeom.MotionAPI(root1Child1).ComputeMotionBlurScale(), 0.5)
self.assertEqual(
UsdGeom.MotionAPI(root1Child1).ComputeNonlinearSampleCount(), 5)
# Even if Child1 applies the schema, but does not author a value,
# it should still inherit from parent
UsdGeom.MotionAPI.Apply(root1Child1.GetPrim())
self.assertEqual(
UsdGeom.MotionAPI(root1Child1).ComputeMotionBlurScale(), 0.5)
self.assertEqual(
UsdGeom.MotionAPI(root1Child1).ComputeNonlinearSampleCount(), 5)
# Child authoring has no effect if MotionAPI is not applied
root1Child2 = UsdGeom.Mesh.Define(stage, '/root1/mesh2')
UsdGeom.MotionAPI(root1Child2).CreateMotionBlurScaleAttr(2.0)
UsdGeom.MotionAPI(root1Child2).CreateNonlinearSampleCountAttr(10)
self.assertEqual(
UsdGeom.MotionAPI(root1Child2).ComputeMotionBlurScale(), 0.5)
self.assertEqual(
UsdGeom.MotionAPI(root1Child2).ComputeNonlinearSampleCount(), 5)
UsdGeom.MotionAPI.Apply(root1Child2.GetPrim())
self.assertEqual(
UsdGeom.MotionAPI(root1Child2).ComputeMotionBlurScale(), 2.0)
self.assertEqual(
UsdGeom.MotionAPI(root1Child2).ComputeNonlinearSampleCount(), 10)
# When nothing is authord anywhere, fallback is 1.0 and 3
root2 = UsdGeom.Xform.Define(stage, '/root2')
root2Child = UsdGeom.Mesh.Define(stage, '/root2/mesh')
self.assertEqual(
UsdGeom.MotionAPI(root2Child).ComputeMotionBlurScale(), 1.0)
self.assertEqual(
UsdGeom.MotionAPI(root2Child).ComputeNonlinearSampleCount(), 3)
