On 1/25/11 4:33 PM, "Lars O. Grobe" <[email protected]> wrote:
>Hi Claus! > >I am not optimistic about capturing sky and sun using a simple camera. >Without worrying about hdr codes - unless you achieve an exposure quick >enough to have a non-saturated sun image, the hdr code cannot do the >magic and invent pixel values. You may try low-transmission filters, but >that costs you the weaker sky luminances. So probably, hardware needed. You could use filters to get the luminance peaks and extend the series by re-shooting without the filter. Time and camera handling are definitely a problem for getting an honest (and alignable) LDR series. Greg has a paper on this someplace, I think. Can't find it right now... Rob Guglielmetti IESNA, LEED AP Commercial Buildings Research Group National Renewable Energy Laboratory 1617 Cole Blvd MS:RSF202 Golden, CO 80401 T. 303.275.4319 F. 303.630.2055 E. [email protected] _______________________________________________ HDRI mailing list [email protected] http://www.radiance-online.org/mailman/listinfo/hdri
