> I would like to konw if I set the output file type of image  HDR, does it mean
> the image has radiance meaning in it?"Radiance Synthetic Imaging"is HDR?
>
>

HDR is a file type for high dynamic range images. Another is the EXR format.
In those formats, the RGB values are stored as unclipped floats.

Using those formats, it's possible for a pixel to be 1000000+ times 
brighter than another.




Alain

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