[Radiance-general] DGP on 172 fish-eye image

[J. Alstan Jakubiec]

Hi Raquel,

I would say yes. Just make sure that the view in the HDR header is 
appropriate or you specify it inline: evalglare -vta -vv 172 -vh 172 
image.hdr

This may slightly underestimate vertical eye illuminance calculated by 
the software, skewing your results a bit; however, 172 is close enough 
to 180 in terms of view angle that the error is likely minimal. Still, 
if you have vertical eye illuminance measurements, supply them inline 
with the -i flag as well.

Best,

Alstan


On 3/14/2017 9:40 PM, Raquel Viula wrote:
> Dear all,
> I have a question regarding Evalglare. Hopefully this is the right 
> mailing list to ask.
> Can DGP be calculated for a -vta fish-eye photo capture that has a 
> view angle of 172 degrees? The manual says that Evalglare can be run 
> for an image cut horizontally given an externally measured vertical 
> eye illuminance and Y max and Y min coordinates but does not mention 
> the possibility of using an image that is also cut vertically, or 
> shall I say, all around.
> Thank you for your help.
>
> Best Regards
>
> Raquel
>
>
> *Raquel Viula*
>
> PhD candidate
>
>
> *TUDelft | Faculty of Architecture and the Built Environment |*
>
> Architectural Engineering and Technology
>
> Julianalaan 134, 2628 BL Delft, The Netherlands | P.O. Box 5043 2600 
> GA Delft
>
>
>
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