Pyro going through the collision geo

[misterbil]

Hi all,

I'm having a weird issue. I'm pretty sure it's something trivial but if someone could point me in the right direction I would greatly appreciate. sorry if this was already covered somewhere but I couldn't find any reference.

I have a simple scene, a tunnel and an emitter (fireball shelf tool).

converted the tunnel to a RDB static object and increased the Uniform division of my collision object.

but still I can see some pyro going through the roof???

Any idea?

and here is the scene:

tunnelCollide.hipnc

Edited August 22, 2013 by misterbil

[cenamorado]

Your merge is set to mutal, set to left to right and make sure your static solver is to the left or on top of the stack in the node.

[misterbil]

Hey Christian,

thanks a lot for the info it did improve a bit but I still have some of the pyro seeping through.

I'm wondering if it is not something that have to do with my geometry?

[narbuckl]

Hello there,

So I used some expressions to clamp your bounding box to the tunnel, I also set the Facet so that the Tunnel's Normals were not reversed, and I used a vdb to make a nice collision object. Seems to work fine now. Let me know what you think.

-Nathan

tunnelCollide_fix.hipnc

[misterbil]

very nice and clean!

Thanks a lot Nathan, that was exactly what I wanted. I love it because I'm exploring VDB as well.

the awesomeness of houdini!

bil