My lights are on during the day!

General discussion about Celestia that doesn't fit into other forums.
Topic author
David
Posts: 24
Joined: 03.11.2004
With us: 19 years 10 months
Location: Bolton, England

My lights are on during the day!

Post #1by David » 26.01.2005, 20:56

My nightmaps work but at the wrong time as they only appear on the day side of the planet, the night side is just black. is there any way around it?

thanks in advance

David
Celestia 1.3.2-1 and 1.4.0-6
iMac G3
Mac OS X 10.3.7
500 MHz CPU
512Mb SDRAM
ATI Rage 128 Pro 2 16Mb VRAM

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t00fri
Developer
Posts: 8772
Joined: 29.03.2002
Age: 22
With us: 22 years 6 months
Location: Hamburg, Germany

Re: My lights are on during the day!

Post #2by t00fri » 26.01.2005, 21:02

David wrote:My nightmaps work but at the wrong time as they only appear on the day side of the planet, the night side is just black. is there any way around it?

thanks in advance

David


David,

I have never heard of THAT before. Please provide complete info about your OS, graphics card, Celestia version, and all the usual.

Otherwise your case is like if your friend asks you: Hey, my car stopped running. Is there any way around it? ;-)

Bye Fridger

Bob Hegwood
Posts: 1048
Joined: 19.10.2003
With us: 20 years 11 months
Location: Germantown, Ohio - USA

Post #3by Bob Hegwood » 26.01.2005, 22:52

Could it be that the night texture needs to be reversed?

In other words, might it require an orientation which is offset by 180 degrees?

Just a thought...

Thanks, Bob
Bob Hegwood
Windows XP-SP2, 256Meg 1024x768 Resolution
Intel Celeron 1400 MHz CPU
Intel 82815 Graphics Controller
OpenGL Version: 1.1.2 - Build 4.13.01.3196
Celestia 1.4.0 Pre6 FT1

Spaceman Spiff
Posts: 420
Joined: 21.02.2002
With us: 22 years 7 months
Location: Darmstadt, Germany.

Post #4by Spaceman Spiff » 27.01.2005, 16:50

David,

could you first eliminate that it isn't just because the nightmap happens to be covered by the cloudmap on the night side? Cloudmaps cover nightmaps. Nightmaps are visible even on the dayside. Also, check the nightmap doesn't happen to be rather empty on the night side at the time you looked.

Switch off the cloudmap, advance time by half the day of the planet and see if night lights appear.

I find that if a planet gets rendered incorrectly, toggling the window between full-screen and windowed fixes things (Restore, Minimize, etc).

If you do a have real problem, post a piccy of the planet as it appears in Celestia, also the night map and the cloud map.

Spiff.

kikinho
Posts: 330
Joined: 18.09.2004
With us: 20 years
Location: Eden, a planet in Etheral Universe

Post #5by kikinho » 29.01.2005, 19:07

I've noticed that if the planet is illuminated by X, T, L, S, N, R, C and M stars, night lights appear more bright. If the planet is illuminated by K stars, night lights appear darker. If the planet is illuminated by brighter stars like G, F, A, B, O, W, D and Q, night lights doesn't appear.

Is your planet illuminated by K or redder stars?
One day we will swim in the subsurface ocean of Europa and take shower in ethane lakes of Titan.

Topic author
David
Posts: 24
Joined: 03.11.2004
With us: 19 years 10 months
Location: Bolton, England

Post #6by David » 30.01.2005, 01:19

I forgot to mention that the planet that is not illuminated is earth and our solar system i have seen it work on other computers but not mine.

Ive took a picture of europe (as it has the most light) with no cloud maps and half lit and half dark and it is not visible on the night side i would post it but i have no suitable web space to link it form

Thanks david
Celestia 1.3.2-1 and 1.4.0-6

iMac G3

Mac OS X 10.3.7

500 MHz CPU

512Mb SDRAM

ATI Rage 128 Pro 2 16Mb VRAM


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