/// rcp authored schema

ImageBasedLightComponent

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

ID: RealityKit.ImageBasedLight Baseline: BASE.usda Fixture: Image Based Light

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

Quick Read

ImageBasedLightComponent has 8 fields. 1 written in baseline, 7 sparse-only (emitted only when changed).

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

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 "ImageBasedLight"
{
    uniform token info:id = "RealityKit.ImageBasedLight"
    bool isGlobalIBL = 0
}

Sparse Patch Examples

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

Environment Resource.usda

Changes: ibl

Changed field: ibl

USDA

def RealityKitComponent "ImageBasedLight"
{
    asset ibl = @../RenderCrate-HDRI_Orbital_40_4K.hdr@
    uniform token info:id = "RealityKit.ImageBasedLight"
    bool isGlobalIBL = 0
}

Inherits Rotation.usda

Changes: enableRotation

Changed field: enableRotation

USDA

def RealityKitComponent "ImageBasedLight"
{
    bool enableRotation = 1
    uniform token info:id = "RealityKit.ImageBasedLight"
    bool isGlobalIBL = 0
}

Intensity Exponent.usda

Changes: intensityExponent

Changed field: intensityExponent

USDA

def RealityKitComponent "ImageBasedLight"
{
    uniform token info:id = "RealityKit.ImageBasedLight"
    float intensityExponent = -6.6197915
    bool isGlobalIBL = 0
}

Mode Blend None.usda

Changes: blendMode, enableBlend

Changed fields: blendMode, enableBlend

USDA

def RealityKitComponent "ImageBasedLight"
{
    token blendMode = "blend"
    bool enableBlend = 1
    uniform token info:id = "RealityKit.ImageBasedLight"
    bool isGlobalIBL = 0
}

Mode Blend.usda

Changes: blendMode, enableBlend

Changed fields: blendMode, enableBlend

USDA

def RealityKitComponent "ImageBasedLight"
{
    token blendMode = "blend"
    bool enableBlend = 1
    uniform token info:id = "RealityKit.ImageBasedLight"
    bool isGlobalIBL = 0
}

Mode None.usda

Changes: blendMode, enableBlend

Changed fields: blendMode, enableBlend

USDA

def RealityKitComponent "ImageBasedLight"
{
    token blendMode = "none"
    bool enableBlend = 0
    uniform token info:id = "RealityKit.ImageBasedLight"
    bool isGlobalIBL = 0
}

Fields

blendIBLsFactor float

Baseline: not written — sparse only
Written as: 0.55164933

blendMode token

Baseline: not written — sparse only
Written as: "blend", "none"

enableBlend bool

Baseline: not written — sparse only
Written as: 1, 0

enableRotation bool

Baseline: not written — sparse only
Written as: 1

ibl asset

Baseline: not written — sparse only
Written as: @../RenderCrate-HDRI_Orbital_40_4K.hdr@

iblBlend asset

Baseline: not written — sparse only
Written as: @../cayley_lookout_2k.hdr@

intensityExponent float

Baseline: not written — sparse only
Written as: -6.6197915

isGlobalIBL bool

Baseline: 0
Written as: 0

Observed Authoring Matrix

12 fixtures × 8 fields

Variant	`blendIBLsFactor`	`blendMode`	`enableBlend`	`enableRotation`	`ibl`	`iblBlend`	`intensityExponent`	`isGlobalIBL`	Interpretation
BASE.usda	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`0`	Canonical baseline fixture
Environment Resource.usda	`omitted`	`omitted`	`omitted`	`omitted`	`@../RenderCrate-HDRI_Orbital_40_4K.hdr@`	`omitted`	`omitted`	`0`	Changes: ibl
Inherits Rotation.usda	`omitted`	`omitted`	`omitted`	`1`	`omitted`	`omitted`	`omitted`	`0`	Changes: enableRotation
Intensity Exponent.usda	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`-6.6197915`	`0`	Changes: intensityExponent
Mode Blend All Custom Blend.usda	`0.55164933`	`"blend"`	`1`	`omitted`	`@../RenderCrate-HDRI_Orbital_40_4K.hdr@`	`@../cayley_lookout_2k.hdr@`	`omitted`	`0`	Changes: blendIBLsFactor, blendMode, enableBlend + 2 more
Mode Blend All.usda	`omitted`	`"blend"`	`1`	`omitted`	`@../RenderCrate-HDRI_Orbital_40_4K.hdr@`	`@../cayley_lookout_2k.hdr@`	`omitted`	`0`	Changes: blendMode, enableBlend, ibl + 1 more
Mode Blend First.usda	`omitted`	`"blend"`	`1`	`omitted`	`@../RenderCrate-HDRI_Orbital_40_4K.hdr@`	`omitted`	`omitted`	`0`	Changes: blendMode, enableBlend, ibl
Mode Blend None.usda	`omitted`	`"blend"`	`1`	`omitted`	`omitted`	`omitted`	`omitted`	`0`	Changes: blendMode, enableBlend
Mode Blend Second.usda	`omitted`	`"blend"`	`1`	`omitted`	`omitted`	`@../cayley_lookout_2k.hdr@`	`omitted`	`0`	Changes: blendMode, enableBlend, iblBlend
Mode Blend.usda	`omitted`	`"blend"`	`1`	`omitted`	`omitted`	`omitted`	`omitted`	`0`	Changes: blendMode, enableBlend
Mode None.usda	`omitted`	`"none"`	`0`	`omitted`	`omitted`	`omitted`	`omitted`	`0`	Changes: blendMode, enableBlend
Mode Single.usda	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`omitted`	`0`	Equivalent to baseline; empty scaffold only