[x3d-public] 17.3.1 X3DLightNode ambientIntensity default value 0 or 1?

[Michalis Kamburelis]

Confirmed, thanks for catching it. It must have been an editing bug
somewhere along the way when making X3D 4.

The default ambientIntensity (on X3DLightNode and all descendants) should be 0.

Looking at X3D 3.3, it was 0 there:
https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/lighting.html#PointLight

Looking at CGE implementation, it is by default 0, even on abstract
TAbstractLightNode (corresponding to X3DLightNode).

Regards,
Michalis

pt., 5 lut 2021 o 08:04 Don Brutzman <brutzman at nps.edu> napisał(a):
>
> Just noticed that 17.3.1 X3DLightNode ambientIntensity default value is defined as 1.
>
> * https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/components/lighting.html#X3DLightNode
>
> However specification for each of the implementing light nodes uses a default value of 0, as does X3D XML Schema DOCTYPE X3DUOM.
>      DirectionalLight
>      PointLight
>      SpotLight
>
> Have edited the specification for consistency, X3DLightNode ambientIntensity default value now redefined as 0.  Entered as Mantis 1346.
>
> * https://www.web3d.org/member-only/mantis/view.php?id=1346
>
> Seems like simple erratum.  Objections or further insights welcome, if any.
>
> all the best, Don
> --
> Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
> X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
>
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