Here are some stills from the final Maya scene. (you can also see some wip further down this blog)
They are stills from different compositing layers such as the ambient occlusion layers and the Fog / dust layers which are either multiplied or screened over the base colour layer when useing After effects or photoshop.
heres some examples:
heres the ambient occlusion:
I also experimented with painting the AO and then multiply the result over the base colour layer , but that got a little messy. If i were to carefully hand paint each frame it might have looked nice , but that would have taken ages.
and heres a few fog / dust tests for the first part of the short:
Thanks for looking...