Commits on Aug 9, 2023

1. LightTool : Handle missing coneAngleData

   

   ericmehl authored and johnhaddon committed Aug 9, 2023
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2. ParameterInspector : Light OptionalValuePlug …

   Two things are needed to make `OptionalValuePlug`, used by USDLuxLights,
   compatible with `ParameterInspector` and `LightTool` :
   
   1. Recognize when the `source` is coming from an `OptionalValuePlug`
   and only return it as the source when the plug is enabled.
   2. Recognize when the parameter does not exist in the shader data and
   don't return an `editFunction()` if so.
   
   Previously we were not checking if a parameter existed for a shader, so
   we would return an `editFunction` that when called, would raise an
   exception when it would be called via `acquireEdit()`.
   ( `::parameterValue` in `EditScopeAlgo` raises the exception. )

   

   ericmehl authored and johnhaddon committed Aug 9, 2023
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3. LightTool : Support OptionalValuePlug changes

   

   ericmehl authored and johnhaddon committed Aug 9, 2023
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4. LightTool : Support half cone angle type

   

   ericmehl authored and johnhaddon committed Aug 9, 2023
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