Instantly download NCP-OUSD updated real questions

Which statement accurately describes a key difference between native instancing and point instancing?

• A. Native instancing requires prototypes to be defined in separate files, while point instancing requires them in the same layer.
• B. Point instancing generates prototypes dynamically, while native instancing uses statically defined prims.
• C. Native instances are individually addressable prims in the scene hierarchy after composition, while point instances are not.
• D. Native instancing can only use a single prototype per scene, while point instancing can use multiple prototypes.

Another department at your company has provided layer1.usda that has a Sphere Gprim with animated timeValues that translate the sphere along the Y-axis:
#usda 1.0
(
endTimeCode = 60
startTimeCode = 1
)
def Xform "Asset"
{
def Sphere "Sphere"
{
double3 xformOp:translate.timeSamples = {
1: (0, 5.0, 0)
30: (0, -5.0, 0)
60: (0, 5.0, 0)
}
uniform token[] xformOpOrder = ["xformOp:translate"]
}
}
You've been given rootLayer.usda that references Sphere from layer1.usda as follows:
#usda 1.0
(
endTimeCode = 60
startTimeCode = 1
)
def Xform "World"
{
def Sphere "Sphere" (
prepend references = @./layer1.usda@ < /Asset/Sphere >
)
{
}
}
For testing purposes, you want to check what Sphere would look like if it was at (0, -5.0, 0) at timeCode = 45.
Which of the following changes in rootLayer.usda would place Sphere at -5.0 in the Y-axis at timeCode 45?
Note that it is okay if the position of Sphere at other timeCodes is changed. Choose two.

• A. Add the following xformOp overrides to "Sphere":
  double3 xformOp:translate.timeSamples = {
  1: (0, 5.0, 0),
  30: (0, -2.5, 0),
  60: (0, -5.0, 0)
  }
  uniform token[] xformOpOrder = ["xformOp:translate"]
• B. Add a (0, -5, 0) translate xformOp timeValue to "World" at timeCode 45:
  def Xform "World"
  {
  double3 xformOp:translate.timeSamples = {
  45: (0, -5.0, 0),
  }
  uniform token[] xformOpOrder = ["xformOp:translate"]
  }
• C. Add a 15 timeCode frame layer offset to the Sphere reference:
  def Sphere "Sphere" (
  prepend references = @./layer1.usda@ < /Asset/Sphere > (offset = 15)
  )
  {
  }
• D. Change the layer metadata endTimeCode from 60 to 45:
  #usda 1.0
  (
  endTimeCode = 45
  startTimeCode = 1
  )

Which is the most appropriate combination of OpenUSD features to consider when trying to solve problems related to artists interaction with LODs, Material variations and Asset Versions?

• A. VariantSets, Purposes and AssetResolvers
• B. PrimAdapters, SceneIndex plugins and References
• C. Inherits, Specializes and MaterialX

You are debugging a complex scene composed of multiple layers. You notice that a property on a prim has an unexpected value. To understand where this value is coming from, you need to inspect the composition arcs affecting this prim. Which API would be most helpful in visualizing and analyzing the composition arcs for a specific prim?

• A. Usd.Property.GetPropertyStack()
• B. UsdUtils.ComputeUsdStageStats()
• C. Usd.Stage.Traverse()
• D. Usd.Stage.Export()

Which of the following are valid principles of asset structure? Choose three.

• A. Redundancy
• B. Compressability
• C. Modularity
• D. Legibility
• E. Navigability