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Nicole

Mix VDBs with different densities and colours in Houdini?

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Hello :) I am trying to mix/combine the density and colour of two different VDBs into one VDB in Houdini (image 1, file attached).  For the most part, this is working as desired but there are two main issues: 

1. Pink fuzzy edges around the blue VDB - How do I get nice clean edges where the blue VDB smoothly fades out to transparent? (image 2)

2. Blue VDB does not go all the way to the border of the pink VDB - How do I make sure both VDBs finish on the same outside border? (image 3)

I have tried adjusting the voxel size, changing the set up of the VDBs (ie. the exterior/interior band voxels, fill interior) but I can't seem to get it working the way I want.

Can anyone please help me?  I have only been learning Houdini for just over a month so example files would be helpful.  Thank you!

Mix VDBs.hip

5d23e05b2c6a3_MixVDBs1.thumb.jpg.c9bbf47f7770ce3f05cea54b7b1283df.jpg

5d23e05d1ac90_MixVDBs2.thumb.jpg.6b58c2ec33c6a88eca9c75d9f40d2bee.jpg

5d23e05f075ba_MixVDBs3.thumb.jpg.b8bf4ab2142f9aeccfeea6feb850d5ec.jpg

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