On 08/04/2014 07:49 AM, clipka wrote:
> Am 04.08.2014 13:31, schrieb James Holsenback:
>> On 08/04/2014 06:57 AM, clipka wrote:
>>> Am 04.08.2014 12:04, schrieb James Holsenback:
>>>> On 07/23/2014 07:27 PM, clipka wrote:
>>>>> I'm currently implementing a new UberPOV feature that allows bypassing
>>>>> the caching of radiosity samples, effectively resulting in purely
>>>>> stochastic unbiased Global Illumination computation. (See recent
>>>>> discussion on povray.unofficial.patches.)
>>>>
>>>> here's the image that prompted my parameter question in p.u.patches ...
>>>> the alcove is made of box primitives and has cylinders to round the
>>>> insides of the corners, used merge not union.
>>>
>>> I think what you're seeing is not an artifact at all.

agreed ... lack of light sounds better. changed spotlight to point light 
and looks closer to what i'd expect, so then changed radius and falloff 
a couple of times until it looked right. the values causing problem were 
arrived at by backing off the camera and settled on values that 
illuminated the test object and alcove, so i can't explain why the 
chosen values were the problem ... yet

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