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Volume Source as Collision


ela1995

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Hi,

Recently I have trouble when using the Volume Source as a Collision for my pyro scene. I cache out the object in VDB, then loaded back into a new scene. Why my smoke still don't collide with the collision?

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On 3/4/2020 at 3:35 PM, Diego A Grimaldi said:

is the name on the field correct? Did you check the gradient of the volume?

I believe 'collision' and 'v' is the require field in order to create the collision using volumeSource. I'm sure the name on the field is correct, but what is the gradient of the volume?

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On 4/13/2020 at 2:51 PM, ela1995 said:

I believe 'collision' and 'v' is the require field in order to create the collision using volumeSource. I'm sure the name on the field is correct, but what is the gradient of the volume?

make sure that your v is going into the sim by the name collisionvel and the gradient is the value that vdbs have in them you need to put the value of collision as -1 in the volumesource node

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