[X3D-Public] Fog "visibilityRange"

[Michael Aratow]

Alexander:

Your comments are not bothersome; on the contrary, they are welcome and 
vital to making X3D a robust and consistent specification!  X3D relies 
on the user/developer community to help maintain and advance the standard. 

Keep on asking the hard questions and pointing out errors or 
inconsistencies; I am sure this helps lead to better interoperability 
among browsers.

Thanks,

Mike Aratow
Co-VP, Board of Directors, Web3D Consortium

Alexander Dong Back Kim wrote:
> Hi all again,
>
> I just want to check with you whether this is correct or not. In the 
> specification, it says...
>
> Fog : X3DBindableNode, X3DFogObject {
>   SFBool   [in]     set_bind
>   SFColor  [in,out] color           1 1 1    [0,1]
>   SFString [in,out] fogType         "LINEAR" ["LINEAR"|"EXPONENTIAL"]
>   SFNode   [in,out] metadata        NULL     [X3DMetadataObject]
>   SFFloat  [in,out] visibilityRange 0        [0,∞)
>   SFTime   [out]    bindTime
>   SFBool   [out]    isBound
> }
>
> The initialization of the visibilityRange sets the SFFloat's minimum 
> and maximum value range as from 0 to positive infinite. However, 
> X3DFogObject's specification clearly shows that...
>
> X3DFogObject {
>   SFColor  [in,out] color           1 1 1    [0,1]
>   SFString [in,out] fogType         "LINEAR" ["LINEAR"|"EXPONENTIAL"]
>   SFFloat  [in,out] visibilityRange 0        [0,-∞)
> }
>
> it is 0 to negative infinite. I guess it's a typo since it should've 
> annotated as "(-∞, 0]" instead if it really meant it. I know some of 
> you might have been bothered because I keep asking tiny little things 
> here but since I'm seriously mastering X3D, please forgive me if 
> you've been. Could anyone please kindly clarify which one is really 
> correct? Really appreciate further answers.
>
> Thank you very much again.
>
> Regards,
> Alexander Dong Back Kim
> ------------------------------------------------------------------------
>
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