[Radiance-general] HDR Sky Camera @ LBNL's Flexlab

[Joe Smith]

Hi, Andy, thanks for sharing LBNL's sky mapping experiment!

Can you kindly advice on resources that elaborate on how to use HDR sky
image for daylight simulation? Does it involve specifying the HDR image,
rather than a "skyfunc", as the material identifier for the sky geometry?
How is the pixel value of a given point on the HDR image converted to
luminance value of the corresponding position on the sky?

Thanks!
- Joe

Andrew McNeil <amcneil at lbl.gov>于2014年6月27日星期五写道：

> Hi Everyone,
>
> LBNL has installed an HDR sky camera at our new FLEXLAB site:
> http://flexskycam.lbl.gov. I've uploaded sample data, including hdr
> images and csv datafiles, recorded by the camera for three days over the
> past week( clear, partly cloudy and overcast). We're happy to share more
> data with other researchers and daylight practitioners (but we don't have
> much to offer yet).
>
> The images can be mapped to a Radiance sky for simulation under real sky
> conditions. I have not used the sky HDR images yet, myself, so if anybody
> uses them successfully please report back and share what you've done!
>
> Questions about the camera hardware and capabilities should be directed to
> Chris Humann at Terrestrial Light.
>
> Best,
> Andy
>
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