NCP-OUSD Practice Questions
OpenUSD Development
Last Update 2 days ago
Total Questions : 70
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Which of these is a viable approach for mapping or grouping compound types from other data sources to OpenUSD?
Why would you not see a sphere when opening this scene?
#usda 1.0
(
defaultPrim = "wall_a_inst"
upAxis = "Z"
)
def Xform "wall_a_inst" (
instanceable = true
variants = {
string Emissive = "Default"
}
prepend variantSets = "Emissive"
)
{
def Sphere "Sphere"
{
}
variantSet "Emissive" = {
"Daytime" {
}
"Default" {
}
}
}
When a user is trying to change the drawMode of an element to bounds, and it doesn't work, what should you look into?
Which of the following statements about OpenUSD plugin development are true? Choose two.
What will be the composed value of /World/Tree/Canopy.primvars:displayColor when you open stage.usda?
#usda 1.0
(
defaultPrim = "World"
metersPerUnit = 1.0
upAxis = "Z"
)
def Xform "World"
{
def Xform "Tree" (
variantSets = ["foliage_color"]
variants = { string foliage_color = "default" }
)
{
def Cone "Canopy" (
references = [ < /_base_foliage_color > ]
)
{
double3 xformOp:translate = (0, 0, 1.3)
token[] xformOpOrder = ["xformOp:translate"]
}
def Cylinder "Trunk"
{
color3f[] primvars:displayColor = [(0.2, 0.1, 0.05)]
double3 xformOp:scale = (0.4, 0.4, 0.4)
token[] xformOpOrder = ["xformOp:scale"]
}
variantSet "foliage_color" = {
"default" {
}
"evergreen" {
over "Canopy"
{
color3f[] primvars:displayColor = [(0.05, 0.15, 0.05)]
}
}
"orange" {
over "Canopy"
{
color3f[] primvars:displayColor = [(0.5, 0.3, 0.05)]
}
}
}
}
}
class "_base_foliage_color"
{
color3f[] primvars:displayColor = [(0.2, 0.75, 0.1)]
}
When developing a custom USD schema, what statements are true regarding API schemas versus typed schemas? Choose two.
How does the concept of an edit target (Usd.EditTarget) interact with the stage in OpenUSD?
Which of the following statements best describes the purpose of OpenUSD file format plugins?
Considering the following scene description:
def "ParkingLot"
{
def "Car_1" (
instanceable = true
references = @Car.usd@
)
{
}
def "Car_2" (
instanceable = true
references = @Car.usd@
)
{
}
}
Disabling the instanceable metadata on the prim at path /ParkingLot/Car_2 by setting it to false has the following effects: Choose two.
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?
