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I know the headline is not very descriptive so I am trying my best to describe the problem / roadblock I am facing.
I am currently tasked with creating a cloudscape which requires quite the few layers of volumes including thicker and thinner clouds as well as high density and low density fog.
Since rendering all in one go is very impracticable for the clients comp team and makes it really difficult to fine tune the look.
So I'd like to render at least some elements separately but the issue is where these elements would be intersecting with each other.
Since Vray doesn't support holdouts for volumes I wonder if there any workaround available in houdini that would allow me to extract the different intersecting elements.
Sadly deep compositing is not an option since the client is gonna use after effects.
I attached a crude drawing of one example of what I mean.
I have a couple of thick clouds mushes together and in the valley there is a another volume that simulates some thing fog.
To add that fog in post I'd need to have the clouds cut off the fog volume on the side so it fits seamlessly together again.
If it were a still this could just be easily masked out but this is gonna be animation so I want to avoid lots of manual rotoscoping.
Another solution would be to port the scene over to Karma or Renderman but I honestly would like to avoid that.
I am currently tasked with creating a cloudscape which requires quite the few layers of volumes including thicker and thinner clouds as well as high density and low density fog.
Since rendering all in one go is very impracticable for the clients comp team and makes it really difficult to fine tune the look.
So I'd like to render at least some elements separately but the issue is where these elements would be intersecting with each other.
Since Vray doesn't support holdouts for volumes I wonder if there any workaround available in houdini that would allow me to extract the different intersecting elements.
Sadly deep compositing is not an option since the client is gonna use after effects.
I attached a crude drawing of one example of what I mean.
I have a couple of thick clouds mushes together and in the valley there is a another volume that simulates some thing fog.
To add that fog in post I'd need to have the clouds cut off the fog volume on the side so it fits seamlessly together again.
If it were a still this could just be easily masked out but this is gonna be animation so I want to avoid lots of manual rotoscoping.
Another solution would be to port the scene over to Karma or Renderman but I honestly would like to avoid that.
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