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Referenceをつくる

ipynbFile UsdReference2__Referenceをつくる.ipynb

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from pxr import Usd,Sdf

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stage = Usd.Stage.CreateInMemory()
prim = stage.DefinePrim("/sphereTest")

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# ファイルを指定してリファレンスを追加
prim.GetReferences().AddReference(f"{os.getcwd()}/usd/sphere.usda")

Success

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True

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layer = Sdf.Layer.FindOrOpen("usd/sphere.usda")
# 中身
print(layer.ExportToString())

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#usda 1.0
(
    defaultPrim = "sphere"
)

def Sphere "sphere"
{
}

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print(stage.GetRootLayer().ExportToString())

Success

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#usda 1.0

def "sphereTest" (
    prepend references = @c:\reincarnation_tech\notebooks\USD\CompArc/usd/sphere.usda@
)
{
}

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# Flattenした結果
print(stage.Flatten().ExportToString())

Success

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#usda 1.0
(
    doc = """Generated from Composed Stage of root layer 
"""
)

def Sphere "sphereTest"
{
}

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primB = stage.DefinePrim('/referenceCube')

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# DefaultPrimが指定されていないような場合
print(Sdf.Layer.FindOrOpen(f"{os.getcwd()}/usd/cube.usda").ExportToString())

Success

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#usda 1.0

def Xform "root"
{
    def Cube "sampleCube"
    {
    }
}

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# AddReferenceで、どのPrimをリファレンスするのか指定する
primB.GetReferences().AddReference(f"{os.getcwd()}/usd/cube.usda",Sdf.Path("/root"))

Success

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True

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print(stage.GetRootLayer().ExportToString())

Success

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#usda 1.0

def "sphereTest" (
    prepend references = @c:\reincarnation_tech\notebooks\USD\CompArc/usd/sphere.usda@
)
{
}

def "referenceCube" (
    prepend references = @c:\reincarnation_tech\notebooks\USD\CompArc/usd/cube.usda@</root>
)
{
}

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refPrim = stage.DefinePrim("/refPrim")
refPrim.CreateAttribute('sampleValue',Sdf.ValueTypeNames.String).Set("hogehoge")
primC = stage.DefinePrim("/addRef")
# 現在のStage以下のPrimをリファレンス
primC.GetReferences().AddInternalReference(refPrim.GetPath())

Success

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True

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print(stage.Flatten().ExportToString())

Success

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#usda 1.0
(
    doc = """Generated from Composed Stage of root layer 
"""
)

def Sphere "sphereTest"
{
}

def "referenceCube"
{
}

def "refPrim"
{
    custom string sampleValue = "hogehoge"
}

def "addRef"
{
    custom string sampleValue = "hogehoge"
}

最終更新日: 2021-10-14 07:47:51