Am 23.09.2017 um 08:44 schrieb Thomas de Groot:

>>> I haven't played around much with scattering media's various types
>>> (usually
>>> using just type 1.) But I've noticed an additional haze effect in
>>> real life that
>>> can't(?) be easiily reproduced, if at all: In a rain-type misty
>>> atmosphere (not
>>> actual raindrops, but *heavy* mist), distant light sources like
>>> streetlights
>>> look slightly *blurred.* I don't know what the physical reason for
>>> this is
>>> (probably a complex phenomenon involving multitudes of different IORs
>>> of the
>>> tiny misty 'drops'), but its an effect that would add a bit more
>>> realism to a
>>> hazy scene. I have no idea if any other raytracing renderer can do this.
>>
>> That effect is caused by anisotropic scattering, with rays mostly
>> scattered in a direction close to the original direction.
>>
>> And yes, POV-Ray should be able to do it.
> 
> "should be able" meaning that it cannot do that yet, I suppose?

No, more like meaning that I've never tested it myself.

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