Ok I am fighting with this now for days. I have a corridor, two spot lights and I am trying to use an atmosphere to give mood. BUT it doesnt seem to work -inside- the corridor.  If I remove it and leave the lights I can get it the way I wish but not IN the corridor.

it is open at both ends btw.

Is there a trick to this?

No picture? Then I will guess. Are your corridor walls white and there is so much light that they are rendering as 255 already? Atmosphere does not block the view to objects like real smoke. instead, it just adds some general glow and if your prop is already rendering as max white, there is nothing to add that would be visible.

Quote - No picture? Then I will guess. Are your corridor walls white and there is so much light that they are rendering as 255 already? Atmosphere does not block the view to objects like real smoke. instead, it just adds some general glow and if your prop is already rendering as max white, there is nothing to add that would be visible.

walls are a deep gray. Floor is black. Ceiling is same deep gray as the walls. Only two lights, the two spots. pointed to the floor. (cant get the picture its trying to render again.:S...I know I should of taken a quick grab before that>.<)

I might need need a schreengrab of the Atmosphere node from Material Room (Volumetrics option needs to be ON, and are the effects dense / strong enough?), and both Ligth properties as well (atmosphere strength? pump up the value to 0.1 at least)

we'll see.

it's not true volumetrics?  i think it adds a plane?

might be less stressful to manually add a plane?