Parti Volume & FG

[fearnight2000]

Hello. I have a problem.
While experimenting i noticed that when i enable PartiVolume on a light FG shows no result.
More specifically, i created a room with a window. I used the Daylight system to bring sunlight through the window. I enabled FG with 4 bounces. Til now everything is OK. When i apply the PartyVolume shader to the Sun light, the volume is visible but the room becomes dark (as if there was no FG).
Anyone who knows what's happening?
I'm using 3ds Max 2009. I've attached the scene. If you enalbe "Volume" in the camera Shaders you'll see the problem.

[hot chip]

Hi

oh it is many problem, use the mr_exposure_ptotographic, set autovolume on, creat a thin glass plane as a window, because when the first ray come on the environment map, you don´t see the atmosphere.

set the parti volumen ...

scatter color = 0,05098
Extinction = 0,002
r=0,29
g1 = -0,18
g2 = 0,33
Minum Step lenght = 0,01m
Maximum Step lenght = 0,1m


mfg
hot chip

[fearnight2000]

Thanks Hot chip.
I used your settings and theFG is visible.
I have some questions though.
1. What does Autovolume do in this situation?
2. I noitced that if i use higher extinction values (in the Partivolume), the volume becomes darker but my FG becomes even darker than without the Volume, why is that?..shouldn't it brighten my FG??

Thanks again

[hot chip]

oh my english is not so good for explain this, but you have a E-Mail. ;)