Sky - clouds appearing (scene attached)

[gangland]

Hi Guys,

The scene is suppose to a transition bettween clear sky to cloudy wheater.

I made an single cloud look using sphere feeding an cloud SOP

then i animated the density field inside the sky SOP, after i convert the sky SOP to an polygon VDB.

 

However when i try to use the polygon VDB to feed the cloud SOP, it wont work.

(i figured out that was something when convert sky SOP to polygons, but not sure at all)

 

my second attempt was export an sequence vdb, with no luck again.

 

Any light on the tunnel????

 

anim_cloud_v00.hip