![]() ![]() when using Static Object in DOPs (or Collision Source mode if using Pyro Solver SOP), by default pyro samples velocity automatically from geo's v attribute and uses volumetric representation for actual collision so as long as you have correct v on your geo and reasonable sdf representation of the collider (vdb or not) it should work predictably 2. You may be happy to hear, that no, this is not an issue in general and never has been as far as I know Pyro collisions definitely take velocity of the collider into account in both of the common methods you can source them 1. Is there a way to throw stuff through a smoke sim in houdini and get it disturbed ? And how? And yes we all know it's possible for smoke to hit the wall but that's easy it s just a box, what if you have a complex object moving through it? Is there a solution for these complex collisions in 18.5 yet? SideFX can we please have WORKING COLLISIONS in Houdini 19? That would be really useful so I don'y have to spend 3 hours in Nuke to fake all the collisions. Did you guys ever try to do a pyro collision? If you did you know exactly what I am talking about, how did you solve it (except by masking in post)?. Like is there a special plugin or a feature or anything? I am willing to give it a try once again but I just don't see this working. ![]() Idk, I tried turning collider geo in VDB but VDBs can't have velocity so I thought ok I will use Convert node to make it a standard volume but that didn't do it either. I had some cars falling off the bridge in a shot recently and they were suppose to disturb the cloud of smoke when they are falling which I of course did in post because Houdini couldn't solve it because it's a pyro collision and those don't work yet in Houdini but how else to do it. I am faking it all in post but it would be great to have it work in any of the 3 or 4 pyro solvers. Only this forum has like 1000 threads with same question so HOW is this still a thing ? I found ton of videos online with people claiming it doesn't work but how come no one has solved this yet. Can anyone explain to me why collisions with PYRO absolutely never work and no one is addressing that? Like evrybody is complaining about this and youtube is full of videos about the issue,Google is full of people asking why is it not working. ![]()
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