On 17-8-2018 12:15, Stephen wrote:
> On 17/08/2018 09:55, Thomas de Groot wrote:
>> On 16-8-2018 13:55, Stephen wrote:
>>> On 16/08/2018 12:08, Thomas de Groot wrote:
>>>> On 16-8-2018 12:53, Stephen wrote:
>>>>> I wish we had made a "Ringworld from the surface" round in TC-RTC. 
>>>>> But I suppose that it would have been too hard. I certainly found 
>>>>> the scales very difficult to work with.
>>>>>
>>>>
>>>> The only way I discovered was to decouple the Ringworld proper and 
>>>> the scene at the surface.
>>>>
>>>
>>> I know but that leaves a cheat-y feeling.
>>
>> Yes, but it is unavoidable as you have to deal with extremely large 
>> objects (the Ring) together with a detailed scene around the camera. 
>> The two just don't fit together in the same physical model where 
>> POV-Ray is concerned without serious artefacts. And it is hardly 
>> necessary: the Ringworld experience for an observer would be something 
>> like watching the Moon in our sky, disconnected from the immediate 
>> world he/she lives in.
>>
> 
> What you say is so true.
> I wonder how fast and at what elevation the ring arch would converge to 
> a line.

The attached image is one of my early tests of the true scale Ringworld 
model, with the shadow squares left out. It does not show the zenith but 
you can partly extrapolate. It shows nicely I think why the Ringworld is 
called the Arch by the natives.

> 
>>>
>>>
>>>>
http://news.povray.org/povray.binaries.images/thread/%3C4c24a930%241%40news.povray.org%3E/

>>>>
>>>>
>>>>
>>>
>>>
>>> I remember it. :)
>>>
>>>
>>
>> Still one of my references where Ringworld-building is concerned.
>>
>>
> 
> No one's ever made a Discworld, have they?
> 

Not that I remember. I think I wanted to start once, intending to use 
elephant models of course, but it never got off the ground somehow.

-- 
Thomas

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