On 14-3-2019 13:28, Thomas de Groot wrote:
> On 14-3-2019 8:43, Thomas de Groot wrote:
>> The small issue I was talking about is the thin line of light visible 
>> between the glass/lead and the window frame. It could be the window 
>> being a tiny bit too small but I guess it is light "leaking" at 
>> angles. Something similar is shown at the angle between floor and 
>> wall. I dimly remember this phenomenon was discussed many years ago 
>> and I do not remember the way to correct that, except, I believe, by 
>> using stochastic anti-aliasing. I shall test that in any case.
>>
> 
> As I supposed indeed, stochastic antialiasing (with no_cache) solves the 
> issue.
> 

The downside of this is that combining stochastic aa with photons, will 
dramatically decrease render speed. A rough calculation for the image 
above, with a crude setting of aa (+a0.1) and with photons enabled, 
shows that it will take at least 24 hours to render. :-(

-- 
Thomas

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