2026年にNCP-OUSDの合格を目指すなら、教材選びから学習、模擬試験まで一か所で完結するPassTestをご活用ください。NVIDIA-Certified Professional: OpenUSD Development (NCP-OUSD)の対策に必要な72問の練習問題と各種サポートがそろっています。

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NCP-OUSD 試験に関してよくいただくご質問

NVIDIA-Certified Professional: OpenUSD Development (NCP-OUSD) 認定 NCP-OUSD 試験問題：

問題 #1

Considering the two files cars.usda and parkingLot.usda in the exhibit. When opening a stage with parkingLot.
usda as the root layer, you observed this prim hierarchy:
* ParkingLot
* car01
You expected this:
* ParkingLot
* car01
* chassis
parkingLot.usda:
#usda 1.0
(
upAxis = "Y"
)
def Xform "ParkingLot" (kind = "group")
{
def "car01" (references = @cars.usda@) {}
}
cars.usda:
#usda 1.0
(
upAxis = "Y"
)
def Xform "redCar" (kind = "component")
{
def Mesh "chassis" {}
}
def Xform "blueCar" (kind = "component")
{
def Mesh "chassis" {}
}
What are ways to fix this issue?

A. Explicitly set the prim type for car01 in parkingLot.usda
B. Add a target prim to the reference in parkingLot.usda
C. Make the ParkingLot prim in parkingLot.usda an assembly kind
D. Set the defaultPrim in cars.usda

問題 #2

Suppose you had the following layer:
#usda 1.0
(
defaultPrim = "ParentXform"
)
def Xform "ParentXform"
{
def Mesh "ChildMesh"
{
}
}
If you wanted to add a property to "ParentXform" such that it would automatically propagate to "ChildMesh" without having to add the same property to "ChildMesh", which of the following changes to "ParentXform" would make this work?

A. Add the property as a primvar, with "constant" interpolation:
string primvars:myProperty = "TestValue" (
interpolation = "constant"
)
B. Add the property as a custom attribute:
custom string myProperty = "TestValue"
C. Add the property as a relationship to < /ParentXform/ChildMesh > :
rel myProperty = < /ParentXform/ChildMesh >

問題 #3

A key responsibility of the pipeline is to assemble content that may have divergent stage metadata across layer stacks. Which of these metadata is automatically handled by composition when they diverge across layer stacks?

A. upAxis
B. kilogramsPerUnit
C. metersPerUnit
D. timeCodesPerSecond

問題 #4

Why is usdchecker an important part of data exchange?

A. It verifies that all USD files are in binary format for max efficiency.
B. It provides the best assurance that an asset will be consumable downstream.
C. It verifies asset URIs are correctly formed for portability.
D. It optimizes USD files for faster loading and rendering.

問題 #5

In OpenUSD, a composed stage aggregates opinions from multiple sublayers. Why might an opinion in one layer not take effect in the final composed stage?

A. Opinions in a layer only affect the composed stage if the layer is explicitly referenced in every other layer.
B. The layer containing the opinion has a weaker strength in the stage's layer stack than other layers that override it.
C. OpenUSD prevents opinions from taking effect unless they originate from the root layer.
D. The opinion is authored using the weaker keyword, which explicitly lowers its priority.

解説：