Best way to create planet atmosphers?

Blitz3D Forums/Blitz3D Programming/Best way to create planet atmosphers?

Here and at us something has turned out.
Graphics3D 640,480,32,2 
AppTitle "Zemlya v illuminatore" ;) 
x=128 
tex=CreateTexture(x,x) 
SetBuffer TextureBuffer (tex) 
Cls 
For i=128 To 1 Step -1 
    Color (128 -i)/64 , (128 -i)/4, 256 -i*2 
    Oval (x-i)/2,(x-i)/2,i,i,1 
Next 
SetBuffer BackBuffer() 
 
spr=CreateSprite() 
EntityTexture spr,tex 
ScaleSprite spr,8,8 
 
pivot = CreatePivot() 
light = CreateLight () 
EntityParent light,pivot 
 
MoveEntity light,0,500,0 
 
cam=CreateCamera() 
CameraZoom cam,4 
MoveEntity cam,0,0,-80 
 
Planet = CreateSphere(32) 
ScaleEntity planet, 7.2,7.2,7.2 
MoveEntity planet,0,0,0 
EntityColor planet, 0,10,20 
EntityAlpha planet,.9 
RotateEntity planet,0,0,20 
 
EntityFX planet,4 
HidePointer 
 
atmpivot = CreatePivot() 
EntityParent spr,atmpivot 
 
FPS=30 
period=1000/FPS 
 
time=MilliSecs()-period 
  
While Not KeyHit(1) 
  Repeat 
   elapsed=MilliSecs()-time  
  Until elapsed 
 
  ticks=elapsed/period  
   
  For k=1 To ticks 
   time=time+period 
   If k=ticks  CaptureWorld 
      PositionEntity atmpivot,0,0,0   
      PointEntity atmpivot,light  
      MoveEntity atmpivot,0,0,1 
    
      PointEntity  light, planet 
      TurnEntity pivot,0,0,1 
    TurnEntity planet,0,.5,0 
 UpdateWorld  
  Next 
   
  tween# = Float(elapsed Mod period)/Float(period) 
 
  RenderWorld  tween 
  
  FPScounter=FPScounter+1 
  If MilliSecs()>FPStimer  
     FPS=FPScounter:FPScounter=0:FPStimer=MilliSecs()+1000 
  EndIf 
  Text 10,10,"FPS :"+FPS 
  Text 10,25,"Distance : " + Int(EntityDistance(cam,planet))  
  Text 10,400,"Mouse1 - Forward, Mouse2 - Back, Mouse3 - Find Planet, MouseRot - Look around" 
  Flip False 
 
  mx = MouseXSpeed(): my = MouseYSpeed() 
  If mx TurnEntity cam,0,-Sgn(MX)*.2,0   
  If my TurnEntity cam,Sgn(MY)*.2,0,0   
 
 
  If MouseDown(1) MoveEntity cam,0,0,.05  
  If MouseDown(2) MoveEntity cam,0,0,-.05 
  If MouseHit(3) PointEntity cam,planet 
  MoveMouse 320,240   
Wend