On 8-8-2018 9:34, Stephen wrote:
> On 08/08/2018 07:22, Thomas de Groot wrote:
>> On 7-8-2018 14:01, Stephen wrote:
>>> On 07/08/2018 12:23, Stephen wrote:
>>>> I might try moving the shadow square radius back to the quoted 
>>>> radius and adjust the length of the shadow square to get equal 
>>>> day/night.
>>>
>>> As threatened. :-)
>>>
>>> Twilight is less obvious.
>>>
>>
>> Yes, but I think it is looking natural from that distance. On the 
>> ring, twilight would be gradual, as expected.
>>
> 
> I think so too. The image I posted yesterday at 22:52, my time. Does 
> show the gradual darkening. The render did take an hour and a half to 
> complete.
> 

I often need to take stock again and again of the gigantic distances and 
sizes we are dealing with in a planetary system. It is something quite 
difficult to grasp, and rendering things like the Ringworld makes us 
forget them, reducing them to simple rings to be taken into our hands ;-)

-- 
Thomas

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