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Planetshine not shown in R 4239
Posted: 05.04.2008, 20:07
by danielj
Now I can see that planetshine is not showing off.Should I choose the HDR version,instead?
Re: Planetshine not shown in R 4239
Posted: 05.04.2008, 21:32
by cartrite
danielj,
It looks like you are looking for the wrong thing here. Try looking at hubble's dark side when it is illuminated by the earth's day side.
Using HDR will almost remove all the planet shine. HDR is something different. It tries to approximate the human eye by limiting the stars that are visible when a bright light source is in view. Try looking at the earth when it is eclipsing the sun. See here.
viewtopic.php?p=101880#p101880 cartrite
Re: Planetshine not shown in R 4239
Posted: 06.04.2008, 02:10
by danielj
I found the HST being illuminated by Earth?s light side,but IT ISN?T THE PLANETSHINE,since when I hit Ctrl+X,nothing changes.Take a look at the picture:
Re: Planetshine not shown in R 4239
Posted: 06.04.2008, 03:17
by cartrite
Planet shine works fine for me. You may want to keep this in mind.
chris wrote:For testing purposes only, planetshine can be toggled on and off with Ctrl+X (antialias lines.) This toggle will be removed before the code is committed to SVN.
hubble.jpg
hubble2.jpg
cartrite
Re: Planetshine not shown in R 4239
Posted: 06.04.2008, 09:17
by t00fri
Daniel,
here are the few obvious keypresses that you have to do to see the nice planetshine:
- start a fresh Celestia
- type 'Hubble' <return> into the command line
- type G
- type 'Sun' <return> into the command line
- type SHIFT + C which centers the sun behind Hubble with the Earth in your BACK!
- do some final adjustments to see the Sun behind Hubble like on cartrite's image. Then you see the pale illumination of Hubble by Earth. Since the Sun is located behind Hubble, the light is surely NOT from the Sun.

- toggle SHIFT+* to look behind you and you will see the bluish Earth that illuminates Hubble...
All I ask you is NOT to forget accidentally one of the steps...
F.
Re: Planetshine not shown in R 4239
Posted: 06.04.2008, 14:40
by danielj
I can see only when I put Ambient Light to Medium.But,then,it?s the ambiente light that is illuminating HST,not the Earth,itself.
Look:
Re: Planetshine not shown in R 4239
Posted: 06.04.2008, 14:57
by t00fri
Daniel,
WHERE is your Sun and where is the Earth? I don't see the Sun looking towards the observer from behind Hubble in your image! I wrote, you should make the image look like that of 'cartrite'. Also what did you see when hitting SHIFT+* ??? Since ambient light has NOTHING to do with planetshine, put it to ZERO.
F.
Re: Planetshine not shown in R 4239
Posted: 06.04.2008, 15:33
by selden
Daniel,
Here is a Cel url to take you to a viewpoint where the Hubble telescope is illuminated by the Earth's planetshine:
cel://Follow/Sol:Earth:Hubble/2008-04-0 ... 2048&ver=2Below is what it looks like on my system. Note that the Sun is marked and in the field of view. The Earth is behind the viewpoint. The Earthshine is shown by all Render paths. Of course, the scene from this particular viewpoint is unrealistic since the light from the Sun would be blindingly bright, which would make the Earthshine invisible.
hubble_earthshine.jpg
Re: Planetshine not shown in R 4239
Posted: 10.04.2008, 17:11
by danielj
The best I could was this:
Re: Planetshine not shown in R 4239
Posted: 10.04.2008, 17:15
by selden
Daniel,
Please do a screengrab of what you see when you use the URL that I provided above.
Re: Planetshine not shown in R 4239
Posted: 10.04.2008, 17:19
by danielj
Finnaly,I did it!
The effect is subtle...
Re: Planetshine not shown in R 4239
Posted: 10.04.2008, 17:25
by danielj
The cel url is linked to Celestia 1.5.1 RC2 and as you can see,Planetshine is NOT working in Celestia 1.5.1
Re: Planetshine not shown in R 4239
Posted: 10.04.2008, 20:25
by cartrite
danielj wrote:The cel url is linked to Celestia 1.5.1 RC2 and as you can see,Planetshine is NOT working in Celestia 1.5.1
That's because Planetshine is not part of Celestia 1.5.1 RC2. Planetshine is part of Celestia 1.6.beta/svn.
cartrite
Re: Planetshine not shown in R 4239
Posted: 10.04.2008, 23:52
by danielj
Re: Planetshine not shown in R 4239
Posted: 11.04.2008, 00:03
by danielj
Sorry,the anterior cel url have the stars disabled.This is the correct:
cel://SyncOrbit/Sol:Earth:ISS/2008-04-1 ... 2048&ver=2