Celestia 1.5.0 Bugs

[selden]

Older Cel://urls are only valid for Celestia v1.4.1.

Celestia v1.5.0 invalidated all previous Cel:// URLs. The position of the solar system changed. It now is relative to the solar system barycenter at the center of Celestia's coordinate system.

[sch]

Selection by ENTER is not worked with russian locale.
My system is Linux Debian 4.0r0

My opinion is reason in
src/celestia/celestiacore.cpp:1237
(or near):

UTF8Decode(c_p, 0, strlen(c_p), wc);

need UTF-8 symbol in c_p (two bytes), but
debugging show that each key pressed generate
two passage with separate bytes in c_p
instead of one pass with two bytes symbol in c_p.

Correct this please.

[bdm]

After starting up Celestia, pressing ENTER (to enter a name) and then pressing ESCAPE (to cancel it) causes Celestia to stop following the Earth.

(Windows XP)

This behavior is easy to change, but it's not clear to me that the way it works now is actually undesirable. How do others feel about this? Should the function of ESC be changed so that when the ENTER-selection box is activated, pressing ESC dismisses the selection box and nothing else?

--Chris

I reported this issue because I thought that ESC cancelled the ENTER search without side effects in 1.4.1. I have checked and found that this is not the case; 1.4.1 behaves like 1.5.0.

So ignore this particular bug report of mine because it's not a bug after all, but the intended behaviour.

[bdm]

Under certain circumstances, the rings of a planet can be incompletely drawn.

If you zoom in on a point in the rings or just outside them, and move to a point close to the ring plane, the segment of the rings closest to the camera will not be drawn.

Here is a Celestia URL: Closeup of Pan
Screenshot:

A similar bug also exists in version 1.4.1.

Platform: Windows
Render paths: All

[selden]

As best I can tell, that's because the plane of the rings is actually cutting across the field of view. It isn't drawn below the center of the window because it isn't there. It's behind the viewpoint.

Type an * (look behind) and you'll see it.

[bdm]

As best I can tell, that's because the plane of the rings is actually cutting across the field of view. It isn't drawn below the center of the window because it isn't there. It's behind the viewpoint.

Type an * (look behind) and you'll see it.

So the rings aren't drawn there because the image plane cuts through them?

Incidentally, the attached image shows another bug with the rendering of the rings. If you look along the top edge of the rings, the rings aren't smooth but instead have a somewhat jagged appearance. This is caused by a number of pixels that are drawn darker than they should be. If you magnify the image, you will see this more clearly.

[bdm]

The "goto surface" command (ctrl-G) does not seem to take the oblateness of the planet into account when computing the distance to the planet. Also, the stated distance from the surface also does not include oblateness.

Saturn is a good test of this:
Saturn Equator - distance is correct, atmosphere is drawn as expected (the planet is incompletely drawn due to the ring issue noted in a previous post)
Pole of Saturn, panned down slightly to see horizon - the curvature of the horizon suggests a great distance, yet distance is reported as about 6 km