/// rcp authored schema

PointLightComponent

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

ID: RealityKit.PointLight Baseline: BASE.usda Fixture: Point Light

schema.json fields.csv matrix.csv fixtures.csv

Quick Read

PointLightComponent has 4 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 "PointLight" with info:id = "RealityKit.PointLight".

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 "PointLight"
{
    uniform token info:id = "RealityKit.PointLight"
}

Sparse Patch Examples

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

Attenuation Falloff.usda

Changes: attenuationFalloffExponent

Changed field: attenuationFalloffExponent

USDA

def RealityKitComponent "PointLight"
{
    float attenuationFalloffExponent = 4
    uniform token info:id = "RealityKit.PointLight"
}

Attenuation Radius.usda

Changes: attenuationRadius

Changed field: attenuationRadius

USDA

def RealityKitComponent "PointLight"
{
    float attenuationRadius = 20
    uniform token info:id = "RealityKit.PointLight"
}

Color.usda

Changes: color

Changed field: color

USDA

def RealityKitComponent "PointLight"
{
    float3 color = (0.722041, 0.92509, 0)
    uniform token info:id = "RealityKit.PointLight"
}

Intensity.usda

Changes: intensity

Changed field: intensity

USDA

def RealityKitComponent "PointLight"
{
    uniform token info:id = "RealityKit.PointLight"
    float intensity = 470000
}

Fields

attenuationFalloffExponent float

Baseline: not written — sparse only
Written as: 4

attenuationRadius float

Baseline: not written — sparse only
Written as: 20

color float3

Baseline: not written — sparse only
Written as: (0.722041, 0.92509, 0)

intensity float

Baseline: not written — sparse only
Written as: 470000

Observed Authoring Matrix

5 fixtures × 4 fields

Variant	`attenuationFalloffExponent`	`attenuationRadius`	`color`	`intensity`	Interpretation
Attenuation Falloff.usda	`4`	`omitted`	`omitted`	`omitted`	Changes: attenuationFalloffExponent
Attenuation Radius.usda	`omitted`	`20`	`omitted`	`omitted`	Changes: attenuationRadius
BASE.usda	`omitted`	`omitted`	`omitted`	`omitted`	Canonical baseline fixture
Color.usda	`omitted`	`omitted`	`(0.722041, 0.92509, 0)`	`omitted`	Changes: color
Intensity.usda	`omitted`	`omitted`	`omitted`	`470000`	Changes: intensity