vray HDRI and vray Dome light, is there a difference between exposure of map and intensity of light?

[bob dobbs]

Not sure how this is working under the hood, does increasing the intensity of the light work the same as increasing the exposure? I have been leaving the light intensity at 1 and increasing the exposure as I assume this will shoot a reasonable number of photons into the scene... but I don't really know the difference.

[^Lele^]

They both multiply the map value.
Exposure is often 2^n where n is exposure value (f-stops), while the light intensity is a straight multiplication.
Should you, however, use the vrayHDRI multiplier, that'd be identical to using the light's.

[bob dobbs]

Very helpful. Thanks for 'splaining to me Lele!