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nicoladanese

post process volumes

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Hey

I'm looking into some volume post processing, I need to be very art directable on a volume after the sim so basically what I need to do is define areas where I need to increase density for instance, or decrease it. which is the best way?

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What do you mean by areas? If this are static areas/spots in the volume using a volume VOP is enough. If it's something that needs to be advected with the smoke simulation you need to also use the rest fields 

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hey! I meant a static area! how can I tell inside the volume vop to reduce the density inside a bounding box with some sort of smoothness? 

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I have had to do this before. I used a mixture of vops with ramps to fade density and vdb combine. 

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