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[UsdLux] Add explanation of UsdLux quantities and behavior #3182

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[UsdLux] Add explanation of UsdLux quantities and behavior #3182

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8 changes: 7 additions & 1 deletion pxr/usd/usdLux/distantLight.h
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Original file line number Diff line number Diff line change
Expand Up @@ -136,10 +136,16 @@ class UsdLuxDistantLight : public UsdLuxNonboundableLightBase
// --------------------------------------------------------------------- //
// ANGLE
// --------------------------------------------------------------------- //
/// Angular size of the light in degrees.
/// Angular diameter of the light in degrees.
/// As an example, the Sun is approximately 0.53 degrees as seen from Earth.
/// Higher values broaden the light and therefore soften shadow edges.
///
/// This value is assumed to be in the range `0 <= angle < 360`, and will
/// be clipped to this range. Note that this implies that we can have a
/// distant light emitting from more than a hemispherical area of light
/// if angle > 180. While this is valid, it is possible that for large
/// angles a DomeLight may provide better performance.
///
///
/// | ||
/// | -- | -- |
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