On 2/8/2017 8:08 AM, Cousin Ricky wrote:
> I have extracted some of the data fields from the Yale Bright Star
> Catalogue and converted them to SDL. This catalog contains all
> nighttime stars of magnitude 6.5 and brighter (roughly all nighttime
> stars visible to the naked eye), plus a few dimmer ones. The
> BrightStar5 module includes more data fields than the include file
> Rarius published a while back, including catalog designations and color
> data. Macros are included for star coloration and Bayer designation
> labels. You can also seek individual stars by Bayer, Draper, Flamsteed,
> or SAO designations.
> Rarius stated that the catalog is in the public domain. I could not
> determine the intellectual property status from the published sources,
> and in the process of trying to find out, I ended up having a very nice
> phone conversation with one of the authors, Dr. Warren!
> The 5th edition of the catalog, as it stands, is in a preliminary state.
> (The primary author died in 2007.) There is no projected date for
> final publication.
> POV-Ray 3.7.1 beta 2 will crash hard with this module. Think Bayer
> designations, and if you've been following p.beta-test, you'll know
> exactly why it crashes. Some of the 3.7.1 alphas (including some 2015
> vintages) also crashed, but 3.7.0 works fine. The latest master passes,
> so everything should be fine when beta 3 is released.
The fuzzy circles don't look so great. I don't know if anything can be
done to improve them however. In video games, stars are often reduced to
1 pixel. But I don't think in POVray there's an easy way to make a star
exactly 1 pixel big. Maybe with some trigonometry?
Post a reply to this message