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/// rcp authored schema

SpotLightComponent

Exact USDA block introduced by RCP plus fixture-backed contract evidence.

ID: RealityKit.SpotLight Baseline: BASE.usda Fixture: Spot Light
schema.json fields.csv matrix.csv fixtures.csv

Quick Read

SpotLightComponent has 11 fields. None are written in the baseline — RCP uses sparse authoring, emitting each field only when it differs from the engine default.

Authored as def RealityKitComponent "SpotLight" with info:id = "RealityKit.SpotLight".

For large components, prefer fixtures.csv for fixture-by-fixture authored rows and matrix.csv for the derived variant matrix.

Introduced USD Block

USDA 
def RealityKitComponent "SpotLight"
{
    uniform token info:id = "RealityKit.SpotLight"

    def RealityKitStruct "Shadow"
    {
    }
}

Sparse Patch Examples

Each fixture shows the USDA block RCP writes when a single parameter is changed in the inspector.

Attenuation Radius.usda

Changes: attenuationRadius

Changed field: attenuationRadius

USDA 
def RealityKitComponent "SpotLight"
{
    float attenuationRadius = 20
    uniform token info:id = "RealityKit.SpotLight"

    def RealityKitStruct "Shadow"
    {
    }
}
Color.usda

Changes: color

Changed field: color

USDA 
def RealityKitComponent "SpotLight"
{
    float3 color = (0.071195416, 1, 1)
    uniform token info:id = "RealityKit.SpotLight"

    def RealityKitStruct "Shadow"
    {
    }
}
Inner Angle.usda

Changes: innerAngle

Changed field: innerAngle

USDA 
def RealityKitComponent "SpotLight"
{
    uniform token info:id = "RealityKit.SpotLight"
    float innerAngle = 90

    def RealityKitStruct "Shadow"
    {
    }
}
Intensity.usda

Changes: intensity

Changed field: intensity

USDA 
def RealityKitComponent "SpotLight"
{
    uniform token info:id = "RealityKit.SpotLight"
    float intensity = 70000

    def RealityKitStruct "Shadow"
    {
    }
}
Outer Angle.usda

Changes: outerAngle

Changed field: outerAngle

USDA 
def RealityKitComponent "SpotLight"
{
    uniform token info:id = "RealityKit.SpotLight"
    float outerAngle = 120

    def RealityKitStruct "Shadow"
    {
    }
}
ShadowCullingModeDefault.usda

Changes: isEnabled

Changed field: isEnabled

USDA 
def RealityKitComponent "SpotLight"
{
    uniform token info:id = "RealityKit.SpotLight"

    def RealityKitStruct "Shadow"
    {
        bool isEnabled = 1
    }
}

Fields

attenuationFalloffExponent float
Baseline
not written — sparse only
Written as
4
attenuationRadius float
Baseline
not written — sparse only
Written as
10, 20
color float3
Baseline
not written — sparse only
Written as
(0.071195416, 1, 1)
cullMode token
Baseline
not written — sparse only
Written as
"Back", "Front", "None"
depthBias float
Baseline
not written — sparse only
Written as
2
innerAngle float
Baseline
not written — sparse only
Written as
90
intensity float
Baseline
not written — sparse only
Written as
70000
isEnabled bool
Baseline
not written — sparse only
Written as
1, 0
outerAngle float
Baseline
not written — sparse only
Written as
120
zFar token
Baseline
not written — sparse only
Written as
"Fixed"
zNear token
Baseline
not written — sparse only
Written as
"Fixed"

Observed Authoring Matrix

16 fixtures × 11 fields
Variant attenuationFalloffExponentattenuationRadiuscolorcullModedepthBiasinnerAngleintensityisEnabledouterAnglezFarzNear Interpretation
Attenuation Falloff.usda 4 10 omitted omitted omitted omitted omitted omitted omitted omitted omitted Changes: attenuationFalloffExponent, attenuationRadius
Attenuation Radius.usda omitted 20 omitted omitted omitted omitted omitted omitted omitted omitted omitted Changes: attenuationRadius
BASE.usda omitted omitted omitted omitted omitted omitted omitted omitted omitted omitted omitted Canonical baseline fixture
Color.usda omitted omitted (0.071195416, 1, 1) omitted omitted omitted omitted omitted omitted omitted omitted Changes: color
Inner Angle.usda omitted omitted omitted omitted omitted 90 omitted omitted omitted omitted omitted Changes: innerAngle
Intensity.usda omitted omitted omitted omitted omitted omitted 70000 omitted omitted omitted omitted Changes: intensity
Outer Angle.usda omitted omitted omitted omitted omitted omitted omitted omitted 120 omitted omitted Changes: outerAngle
ShadowBias.usda omitted omitted omitted omitted 2 omitted omitted 1 omitted omitted omitted Changes: depthBias, isEnabled
ShadowCullingModeBack.usda omitted omitted omitted "Back" omitted omitted omitted 1 omitted omitted omitted Changes: cullMode, isEnabled
ShadowCullingModeDefault.usda omitted omitted omitted omitted omitted omitted omitted 1 omitted omitted omitted Changes: isEnabled
ShadowCullingModeFront.usda omitted omitted omitted "Front" omitted omitted omitted 1 omitted omitted omitted Changes: cullMode, isEnabled
ShadowCullingModeNone.usda omitted omitted omitted "None" omitted omitted omitted 1 omitted omitted omitted Changes: cullMode, isEnabled
ShadowFar.usda omitted omitted omitted omitted omitted omitted omitted 1 omitted "Fixed" omitted Changes: isEnabled, zFar
ShadowNear.usda omitted omitted omitted omitted omitted omitted omitted 1 omitted omitted "Fixed" Changes: isEnabled, zNear
ShadowsDisabledAfterEnabled.usda omitted omitted omitted omitted omitted omitted omitted 0 omitted omitted omitted Changes: isEnabled
ShadowsEnabled.usda omitted omitted omitted omitted omitted omitted omitted 1 omitted omitted omitted Changes: isEnabled