Celestia Forums

Posted: **18.10.2004, 22:16**

Problem:

Under many circumstances, defining an Atmosphere around an irregular object causes Celestia to crash.

In particular, GoTo the SSC object below with Atmosphere enabled crashes Celestia:

Code: Select all

"Atest" "Sol/Jupiter"
{
   Class "asteroid"
   Mesh "amalthea.cmod"

   Texture "asteroid.jpg"
   Radius 1.0

   Atmosphere {
      Height 4.5
      Lower [ 0.4 0.5 1 ]
      Upper [ 0.2 0.4 1 ]
   }
   EllipticalOrbit 
   {
      Period           895.8633
      SemiMajorAxis   27457948.02393436
   }
}

System:
512MB 2.4GHz P4; Win XP Pro, SP2
128MB FX 5200; Forceware v61.76
Celestia v1.3.2 final & built from CVS on 8 Oct.

Posted: **20.10.2004, 19:25**

Selden,

Using your test code seems to work OK for me on my system at work. The atmospheres do look pretty whacked, kind of like a comet tail, but Celestia doesn't crash. Here's a screen shot:

Dave
-----------------------------------
System:
1.0GB 2.4GHz P4; Win 2K, SP4
128MB FX 5900
Celestia v1.3.2 final

Posted: **20.10.2004, 20:12**

Dave,

The "atmosphere" is supposed to look like a comet tail

I copied its parameters from Medusa's cometary collision Addon.

Quite a few people are reporting crashes with it.
Others aren't.

It's starting to look like a driver bug, since it crashes on my FX5200 but works on your 5900. What version of the drivers are you using?

Posted: **20.10.2004, 20:23**

Code: Select all

"Atest" "Sol/Jupiter" 
{ 
   Class "asteroid" 
   Mesh "amalthea.cmod" 
   Texture "asteroid.jpg" 
   Radius 1.0 

   Atmosphere { 
      Height 4.5  
      Lower [ 0.4 0.5 1 ] 
      Upper [ 0.2 0.4 1 ] 
   } 
   EllipticalOrbit 
   { 
      Period           895.8633  (year)
      SemiMajorAxis   27457948.02393436  (km)
      Eccentricity        0
      Inclination         0
      AscendingNode       0
      ArgOfPericenter     0
      MeanAnomaly         0
      Epoch               2453200.5   
 } 
}

[/quote]

Posted: **20.10.2004, 20:58**

Selden,

selden wrote:The "atmosphere" is supposed to look like a comet tail I copied its parameters from Medusa's cometary collision Addon.

Ah, I thought that looked familiar!

My drivers are version 6.14.10.4403

Dave

Celestia Forums

Celestia v1.3.2 & CVS: asteroid atmosphere crashes

Celestia v1.3.2 & CVS: asteroid atmosphere crashes