On 8/8/2018 3:31 PM, Bill Pragnell wrote:
> Mike Horvath <mik### [at] gmailcom> wrote:
>> I also attached my latest render to this post. The shadow squares'
>> widths now match what was apparently stated in the books. The shadowed
>> regions on the ring look much better now.
>>
>> However, I had to double the height of the shadow squares in order to
>> block out the sun. See the parameter `RWorld_Shadow_Square_Width`. I'm
>> not sure why this was necessary, as the original height was equal to the
>> sun's diameter, and should have fully blocked its light.
> 
> Yay for more Ringworld! Nice image.
> 

Thanks!

> I don't remember any of the details any more, but I remember spending time going
> through the book for measurements and descriptions when I last tried this (some
> years ago now), and I don't recall any issues like you describe. Someone
> mentioned ambient in the foregoing discussion - of course, the lit areas of the
> Ring would cast secondary light onto the night areas. I'm sure Niven mentioned
> arch-light in place of moonlight somewhere...
> 
> And of course his maths was bad - he had to write an entire sequel novel just to
> deal with the Ringworld's intrinsic instability ;-)
> 
> Bill
> 

I am using the stats from Niven's website:

http://news.larryniven.net/concordance/content.asp?page=Ringworld%20Appendix#Params


Mike

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