Prometheus again, with Pre5

General discussion about Celestia that doesn't fit into other forums.
Dollan
Posts: 1150
Joined: 18.12.2003
Age: 54
With us: 20 years 11 months
Location: Havre, Montana

Post #21by Dollan » 06.11.2004, 23:56

One possibility might be dependent on whether or not you've turned your computer on and off since the last time you tried. perhaps something had to be "reset" in this manner?

...John...
"To make an apple pie from scratch, you must first create the universe..."
--Carl Sagan

Topic author
Evil Dr Ganymede
Posts: 1386
Joined: 06.06.2003
With us: 21 years 5 months

Post #22by Evil Dr Ganymede » 07.11.2004, 00:20

Dollan wrote:One possibility might be dependent on whether or not you've turned your computer on and off since the last time you tried. perhaps something had to be "reset" in this manner?

...John...


Maybe... but does Celestia have anything that is "reset" on a reboot? A memory cache of some sort?

Dollan
Posts: 1150
Joined: 18.12.2003
Age: 54
With us: 20 years 11 months
Location: Havre, Montana

Post #23by Dollan » 07.11.2004, 00:26

Not that I'm aware of. On my system, though, I have encountered times, with other programs, where a certain setting seems to be "stuck", but resolves itself after a reboot, even if a reboot is, in theory, not required.

Of course, this may not be the case with your system. Personally, I think computers are all unique in their personalities.

I know mine all hate me. :wink:

...John...
"To make an apple pie from scratch, you must first create the universe..."
--Carl Sagan

Avatar
selden
Developer
Posts: 10192
Joined: 04.09.2002
With us: 22 years 2 months
Location: NY, USA

Post #24by selden » 07.11.2004, 03:17

Don't forget that planets and clouds do move within Celestia. If you aren't going to exactly the same time and viewpoint, then things can't help but be different.

But also, complex hardware doesn't always reset itself to exactly the same state unless you cycle its power. And sometimes not even then, if you've accidentally let out the magic smoke that it runs on.
Selden

Topic author
Evil Dr Ganymede
Posts: 1386
Joined: 06.06.2003
With us: 21 years 5 months

Post #25by Evil Dr Ganymede » 07.11.2004, 10:11

selden wrote:Don't forget that planets and clouds do move within Celestia. If you aren't going to exactly the same time and viewpoint, then things can't help but be different.

But also, complex hardware doesn't always reset itself to exactly the same state unless you cycle its power. And sometimes not even then, if you've accidentally let out the magic smoke that it runs on.


Heh. Well, what I was befuddled about was how earlier on it was showing that the dark side (relative to A) was being illuminated by something when it shouldn't have been, but then later that exact same view (with B in the background and A off to the right) didn't show the dark side being lit by anything.

Cormoran
Posts: 198
Joined: 28.07.2003
With us: 21 years 3 months
Location: Slartibartfast's Shed, London

Post #26by Cormoran » 07.11.2004, 10:41

I've seen examples of what Selden is talking about. I had one world that looked like its clouds were inside out - Dark on the dayside, bright on the darkside.

Weirdly cool, but not exactly realistic.

I think when the Graphics processor is heavily taxed (Try Jestr's 40 Eri system, and have Vulcan and T'Khut in the same view, and you'll see what I mean) it gets a bit confused and has a nervous breakdown, or runs out of the magic smoke Selden mentioned (All the numbers after the Graphics cards' names are a pressure reading, obviously, in groats per cubic hatstand).

As with games, a hard reset is the best approach.

Cheers,

Cormoran
'...Gold planets, Platinum Planets, Soft rubber planets with lots of earthquakes....' The HitchHikers Guide to the Galaxy, Page 634784, Section 5a. Entry: Magrathea

wcomer
Posts: 179
Joined: 19.06.2003
With us: 21 years 5 months
Location: New York City

Atmosphere and Sunsets

Post #27by wcomer » 12.11.2004, 19:42

Are atmosphere and sunset lighting currently implemented for multiple light sources? I have a GF2 MX400 and can see the multiple illuminations of the surface maps. However I can only see atmospheric effects for the dominant source.

For example, if I double the radius of prometheus from 4.0 to 8.0 and leave the rest of the .ssc unchanged. Then at 2035 09 19 05:43:00 UTC the atmospheric lighting switches instantly between alf cen a and alf cen b.
cel://Follow/ALF%20Cen%20A:Prometheus/2035-09-19T05:42:56.99561?x=+HJU5SyUkVs87+b//////w&y=WA2unpNjTOAandL//////w&z=FLdamv47nSthiSo&ow=0.627961&ox=0.449154&oy=0.544003&oz=0.328613&select=ALF%20Cen%20A:Prometheus&fov=28.503481&ts=1.000000<d=0&rf=38823&lm=3


Is this a consequence of my graphics card or due to a not yet implemented multiple light source feature?


Return to “Celestia Users”