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Found 5 results

  1. collisionignore with staticObject

    hi, I have a question about collisionignore attribute. When setting i@collisionignore=1, I expect particle should go through collision object, but it's still colliding. My guess is collisionignore only works with popcollisiondetect node. Any collision objects with a merge node won't work. In other words, how can we control to ignore collision for staticObject? ignorecollision.hipnc
  2. Hello, This is my first ever post here. Usually I try to fix things by myself since it helps me learn, but I've been having this problem for almost 2 weeks now and it's driving me insane. I have modelled a storage shelf and placed buckets on it. The shelf gets hit by a ball and all the buckets fall on the ground. Some of the buckets have paint in them which is supposed to stay inside until the lids open. I have simulated the buckets falling and I have cached the simulation. I'm currently testing the fluid sim with only one bucket and the problem I'm having is that the fluid collides with the bucket just fine when it gets created, but when the animation of the bucket starts, the fluid just stays in its place as if the bucket never moved. Once the bucket falls out of place, the fluid also just falls down completely ignoring the bucket's movement. I have checked my collision geometries and they all look fine and follow the animation. I am using volume collisions, I have tried filling their interiors, extruding the collision geometry by a lot, increased the substeps, resizing the fluid geo and every time I get the same result. So I don't think it's a problem with the collision geometry itself, but more with how the fluid reacts to the animation of the static object. It almost looks like as if it's colliding with a bucket with no animation, which suddenly disappears. I am pretty sure the solution is something simple that I have failed to notice but I can't figure out what it is for the life of me. Any help would be greatly appreciated. Thank you.
  3. Static Object Collision Guide Problem

    Hi! just got a little issue here, i have a moving static object with a particle sim and i don't know why but the Collision guide show up on my render and i don't really know how to undo it unless i remove my static object completely and that's not what i really want. Thanks in advance!
  4. Static Object BBox

    Hello Houdini Gurus, I'm going through Ocean and Flip tutorials and in order to expand my knowledge and understanding of the topic I play around with settings. Simulated Boat, converted to static collision object shredding Ocean Flip waves. For some reason, my boat is cut in half by some bounding box. Could you please advice which BBox responsible for collision Object? please see attachment
  5. Hey all, I am very new to Houdini and am trying to use the wire object/wire solver to simulate fur on a tiger. I have it setup and working, but when I increase the number of curves I'm simulating, I get some issues. Mainly, some of the wires get caught inside the tiger geometry and look like they get stuck and therefore stretch. It seems to be when the tiger's legs come very close together, the wires from one leg get stuck inside the other. Does anyone have any experience on how to resolve this? I am using volume based collisions on a static object and static solver, and the settings are pretty much the default settings. Any help would be greatly appreciated. Thanks.
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