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On 2020-01-14 9:20 PM (-4), Bald Eagle wrote:
> Cousin Ricky <ric### [at] yahoo com> wrote:
>
>> A sky sphere would use a different formula, but the math would be similar.
>
> Has anyone to date used the catalogue to generate a fairly realistic spherical
> sky shell or a flat image useful for uv-mapping a sphere?
>
> I'd like to be able to incorporate this into the solar system scene I've worked
> on, if I get the time to focus on it, and I have another project where I'd like
> to be able to look up from a given position on earth at a certain angle at a
> given date and time and see a reasonably accurate view.
I had been thinking about this around the beginning of the year, but the
more I pondered, the more complications there seemed to consider. How
bright? How to deal with dynamic range? What resolution? In general,
how would I make one tool that would apply across various scales and
lighting conditions? (Similar considerations are why I haven't put
beverage materials in the CoffeeMug include file.)
I just punted in despair, figuring each project might require a somewhat
specialized solution, but I didn't notice the new thread activity until now.
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