Page 1 of 1

C.1.4.0pre5: illunination confusion

Posted: 07.11.2004, 18:27
by selden
This is an attempt to provide a clearer example of the bug first reported by Evil Dr Ganymede in the thread http://www.shatters.net/forum/viewtopic.php?t=6071

1) As one planet moves around one of the stars in a double star system, the side of the planet which is illuminated by the nearest star does not follow the nearest star as seen by that planet.

2) Two different planets in identical orbits around the two different stars are illuminated identically. They shouldn't be.

Image

The above picture illustrates this problem.
The upper half shows the star system.
The bottom left image is of the planet orbiting the left-most star of the upper image.
The bottom right image is of the planet orbiting the right-most star of the upper image.

Both planets are vertically above their respective stars (at what I call the 0 degree position).

Catalogs and Cel:// URLs which illustrate this problem are in the Zip file
http://www.lepp.cornell.edu/~seb/celestia/confused_illum.zip

.

Posted: 07.11.2004, 19:06
by Evil Dr Ganymede
Oh good. So I wasn't imagining things...! :?

Posted: 09.11.2004, 18:46
by chris
I reproduced the problem with your example, and I think I have a good handle on what's going wrong. I should have a fix (and a new prerelease) ready tonight.

--Chris

Posted: 09.11.2004, 19:01
by selden
Thanks!

Posted: 09.11.2004, 19:17
by Evil Dr Ganymede
chris wrote:I reproduced the problem with your example, and I think I have a good handle on what's going wrong. I should have a fix (and a new prerelease) ready tonight.

--Chris


What is going wrong, just out of curiosity?

Posted: 10.11.2004, 18:13
by chris
Evil Dr Ganymede wrote:
chris wrote:I reproduced the problem with your example, and I think I have a good handle on what's going wrong. I should have a fix (and a new prerelease) ready tonight.

--Chris

What is going wrong, just out of curiosity?


The light sources for the wrong solar system are being used. If there are only planets around one of the stars, the lighting works fine. I didn't get the fix made last night. Too much Halo 2 . . .

--Chris