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nailedit

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About nailedit

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    Peon

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  • Name
    Hubert
  • Location
    Poland
  1. Matching normals movement

    Turns out it wasn't the cube or chains that I needed to do that with but the point that it was copied on and to be more precise, the polyframe sop needed to be applied inside of the geo with that point instead of after merging it in the obj containing chains, thanks a lot for pointing me to the right direction!
  2. Hi guys, I've already posted this on FB group with no answear so you're my last hope. I have a problem with normals demonstrated in the video, basically object animated on a curve and aligned to the curves tangents hits a geo and gets stuck in it but it doesn't rotate along with it. So basically the question is how can i match the movement of normals of the object beign hit and hitting so that it rotates properly? Here is simplified .hip: link
  3. VDB smoke uv mapping

    Hi guys I'm trying out some stuff for my upcoming project and was wondering how to make uvs for smoke converted to poligons, so that they would remain stable rather than jumping around every frame. I found some info on using dual rest position, however I'm not sure how to tackle it, or if it could work with this approach. Here is what I have right now ( I'm not sure if you can see that, but there are scratches on the surface of the smoke which as expected change where they are every frame, the question is how to make them remain in place even tho the number of points is changing and whole thing is deforming) Here is the type of effect I'd like to achieve: Any tips are very much appreciated!
  4. I was trying to avoid that approach mostly couse at the end of the simulation I was planning for the fire to burn all the way through one of the sides of the cloth. If I delete after the sim the separeted cloth would look like it still sticks together which would be kind of ridiculous, so I guess I must stop the fire before spreading that far. Anyways thank you for explaining that it is not possible to achieve, I would probably waste much more time on trying to figure out something that can't be done.
  5. Hello Shortly: How to update cloth every frame based on changing topology? I'm trying to make cloth burn effect using spreading attribute to delete polygons, however I can't get the cloth to update simulation every frame based on deleted polygons. I've been trying to use multi solver for that. Everything is fine untill the very moment when the polygons are being deleted, the simulation of the cloth stops, and the only thing that is happening is the deleteing of polygons. I've found a thread from a few years back of someone who has been doing the same effect, with the same problem, but the answear that seemed to work for him doesn't do it in my case, here is the link to that old topic: link. I also attatch the .hip file of my set up, I added some notes so it would be clearer. I've spent a lot of time playing with diffrent options of the multi solver and sop sop solver but I'm stuck. Any help would be greatly appriciated. 02_cloth_tear_prob.hiplc
  6. How does cloth capture/deform work?

    OH wow I had no idea that there are example files, I usually just look things ups in the docs, tought that they have the same stuff as help does. Thanks a lot for the help, this clears things up.
  7. Hi guys, So as you can see from the question I am a Houdini newbie, and I just can't figure out how those nodes work... What I mean by that is that I don't get what I should plug into the inputs of the nodes and in what order. I think I got the cloth capture right (untitled.mp4), but the problem is going on from here. Just to clarify I want to use a low res cloth sim to transfer it on high res one. Sorry for the very basic question but I couldn't find answear anywhere. Cloth_capture.hiplc
  8. Changing the Disturbance setting did help, altho the turbulance still isn't there and if I try to tweak those same settings for turbulance(even with lower values), the smoke just goes crazy, I'll try a some more tommorow but right now it's 2am so I guess some sleep would be a nice idea. Once again thanks for all the help.
  9. I'm caching the scaled sphere sim now, i'll try this after and let you know how did it go, whatever the result, thank you for the help.
  10. I ran the sim twice, both times problem wasn't fixed :/ weird that it fixed it for you, can I see your file?
  11. Thanks, but this didn't help either, any other ideas?
  12. Unfortunately this didn't fix it, the reason I didn't post the file is becouse I exported the tube and curve from Maya so not really sure if this will work if I just post the FBX and file, but worth giving a shot now that I think about it. V2_z_curveF2.hiplc FBX_closed_spiral.fbx
  13. Hi So I want to make the smoke fill the spiral tube and I'm pretty close to result I've been aiming for but i've run into a problem I can't seem to resolve. At one point in the simulation smoke stops responding to forces and just follows the tube (attachment). My process of making this set up: 1. convert tube to volume 2. attract billowy smoke emitted from sphere to the volume tube (attract fluid) 3. add a curve force (curve was used to make the tube so it is in the middle of the tube) I've tried changing every paramiter I could think of but nothing helped. Anyone has any ideas? Smoke preview youtube Smoke_problem.mp4
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