Volume Light - Caustic Effect Render times.

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  10 October 2012
Volume Light - Caustic Effect Render times.

I have an animated underwater scene. 10 secs - 250 frames.
Current render times are around 30 seconds perframe.

I have placed a volume light effect in the environment and effects dialogue.
This has blown render times out to 10 mins

I am looking to reduce this render time. What settings might achieve this?
I would also be interested in doing this as a separate pass but don't really know how in max.

3dsMax 2012 scene (without big unit)

Latest scene without volume light.

and with volume light
  10 October 2012
You can fake those "godrays" pretty good in aftereffects using some effect plugins
like "Trapcode Shine" or Frischlufts "Flair Volumetrics"

So if you got After Effects and render time is an issue i would experiment doing it completly there

Of course this would not bring real caustic light effects on the geometry, but that does nt exist in you example pics either ...

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  10 October 2012
Thanks Josef
Really looking to do in scene as there will be interaction between geometry and light.
But good to know anyway about those solutions if i have to go that way.
  10 October 2012
You could also try to fake it using the techniques used by games; using textured planes.
  10 October 2012
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