Jump to content

Search the Community

Showing results for tags 'cloth'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • General
    • Lounge/General chat
    • Education
    • Jobs
  • Houdini
    • General Houdini Questions
    • Effects
    • Modeling
    • Animation & Rigging
    • Lighting & Rendering
    • Compositing
    • Games
  • Coders Corner
    • HDK : Houdini Development Kit
    • Scripting
    • Shaders
  • Art and Challenges
    • Finished Work
    • Work in Progress
    • VFX Challenge
    • Effects Challenge Archive
  • Systems and Other Applications
    • Other 3d Packages
    • Operating Systems
    • Hardware
    • Pipeline
  • od|force
    • Feedback, Suggestions, Bugs

Found 92 results

  1. Cloth Simulation for Crowds

    Hello, Does anyone have a solution for creating dynamic cloth simulation for crowds? For instance, a crowd running with flag poles using a prop following the crowd agent layering method? If someone can accomplish a dynamic cloth asset with either .abc cache file or houdini cloth for crowds I would love to hear your technique. I have included: flagTest.abc (nCloth flag animation on pole), screenshot showing example method for using using .abc assets for crowds, tutorial for agent layering method for crowds, and tutorial for constraining houdini cloth. Can anyone manage to get flagTest.abc be used by the biped character 2 for Houdini crowds? Thanks! flagTest.abc
  2. During the last 3 weeks, a did some Rnd and published my results on vimeo . Some people asked me to share my files here, so here we are i hope it will help!
  3. hi, I try to do a simple cloth animation on my character but I cant quite get rid of these bounces that my cloth object does after some time. As you can see in the first part of the animation everything goes well and in the second part of the animation the cloth freaks out somehow although the movement of the character doesn´t change so much. Does anyone with some cloth experience have some tips for me? Sub Steps in the Solver are at 16 and I cached out my collision geo with substeps. Thank you. Jon cloth_flipbook.[1900-2300].mp4
  4. My 3 year old work, most of tasks was done in Houdini.
  5. Hi guys, I have this very specific case where i'm applying and extrude to a ripping cloth. Everything works fine but I have no idea on how to apply UVs to this kind of geometry. Since the mesh is animated, this is what happens when I apply an UV Layout: Any tips would be very welcome - Alvaro Odforce.uv.hiplc
  6. I'm trying to simulate cloth interacting with an animated file cache. The cloth sim is pretty much from the shelf tool and the collider was set with the surface collider shelf tool. the collider is poking through the cloth. im having trouble finding which parameters to change to stop the interpenetration. i've increased the substeps by a lot but this doesn't seam to have an effect. any suggestions would be appreciated.
  7. Partial collision detection

    hey, little problem here. I have a piece of cloth made out of grains. Its colliding with an object. Here I use a collision detection in combination with a collision behaviour. The collision detection shall only detect a few polygons of the whole object to stop the motion there. Referencint the polys in dops. Its giving me a correct collision guide but during the sim it keeps ignoring it. Insteat it freezes the grains along the whole 'main collision object'. So that are the areas to collide with, just a few squares.
  8. Peeling Effect Houdini 16

    Hey all, Im trying to get a peeling effect on an arm for a shot I was asked to work on at school. I looked all around and found some different techniques to use but when set up completely nothing works, if anyone has any idea if some attributes changed in H16 or can look through the Hip and tell me what I'm doing wrong that would be fantastic. shot_48_02.hipnc
  9. Cloth/FEM and RBD/Bullet interaction

    Hi I've been searching the forum on this topic but didn't find much. Is there a way to get a somewhat correct collision behavior between the cloth solver and the RBD solver running parallel in the same DOP network? I've a bunch of cardboard boxes that's suppose to stack on each other. I'd an idea that the cloth boxes that had come to rest would switch over to be a RBD objects instead, to optimize the sim. But first I got to get the solvers to interact. Any ideas? A simple test scene with the setup is attached (without the switching stuff). Thanks / John Edit: Ops double post :/
  10. Hey there, how would you go about changing the animation/simulation state of e.g. a cloth sim? I tried the pin to animation attribute to release the cloth object from the animation; but bringing it back to follow the animation is harder. it just snaps into place when I put the attribute back to 1 in the sop solver (dops). Also does anyone know a way to mix between animations and simulations? Lets say the cloth object is meant to somehow follow the movement of a master object but also should react to some forces. Or in other words: object is moving fast = animation state; object suddenly moves very slow = simulation state; objects moves out of the frame again = smoothly go back to follow an animation. The pin to animation attribute isn't allowing 0.5 values or so.
  11. Hi I have to work on and animated piece of cloth where the individual square pieces are docking into the animation. How would you go about the rendering? I got an attribute that separates bright pieces from the dark ones. Can call that attribute into the shader but need more variation. Would you use a for each loop to iterate over each piece in order to apply e.g. individual uvs for each piece? The material should be very sparkly on some parts.
  12. Hallo, I am triing to make an "Ash" simulation for weeks, but it just doesnt work. I tried to do everything like in Peter Quints tutorial about the peeling effect but it doesnt work. The f@pintoanimation = 0; does not set the pinning to 0 and it is VERY annoying. Can somebody PLEASEPLEASEPLEASE help??? I would really-really appreciate it... Thanks Zac PintoanimationCloth Tear.hipnc ParticleAndClothSim.hipnc
  13. Hellow there.Is there a way to have the old cloth solver and cloth object in H16?Cause as for now, I can't find a way to drive my cloth sims with custom velocity flields with the new finite element solver as I used to do in the good old time.I am not looking for the external velocity offset thing, i know how to use it, but its effect is the same everywhere in space. What I needt to do is, let say, free falling pieces of cloth affected by a turbulent wind when they are crossing a precise area.Thanx for any suggestion.
  14. Cloth Pins Modification

    Hallo! I want to somehow delete pins that are holding cloth, but have several issues with this. In simple example, pins get "ungrouped" by solver, but everything is disconnecting (there should be green balls). cloth_constraint_delete.hip I made very simple example file (that also shows how boolcut is destructive to cloth). My main problem is from more complex scene: What I couldn't replicate in simple example, but this is what happens when I try to add sopsolver (same as in example file), that is just removing points from group. Without it - it works fine. Points are not deleted, reordered, does not change topology. Last thing is WHY I'm trying to delete those pins: This is what happens when pins from similar spot are being separated by rigid simulation (rigid bodies hidden). I'm suspecting that it's when one "cloth poly" is attached to two different rigid objects. It won't tear, it will just stretch. Any ideas?
  15. I have a question about houdini cloth. I am looking for nCloth feature 'paint input mesh attract'. Basically I paint influences on mesh then attach an animated mesh which has same topology as nCloth's one. When siming it, nCloth mesh tries to follow the animated mesh as closely as possible. Non-influence vertexes are fully dynamics. Do we have a similar function in Houdini16?
  16. Cloth collision like gum

    Good morning people: I'm a beginner in the 3D world. My main skill is photography and I'm searching a way to integrate some kind of VFX onto my images. Now I'm trying to generate a kind of big sheet of bubble gum colliding with a head. I don't know it the Cloth collider approach is the best or FLIP could be better. I'm stuck in this part, with this setup, I need a more stretchy look but I don't know how to achieve it. Thanks for your time. Best regards, Pelayo. clothCover.hipnc
  17. Multiple Solver Interactions

    I'm gradually trying to learn various of Houdini's solvers (primarily cloth, pyro, and bullet for now) and I'm slowly getting to grips with how they work individually. What I'm struggling to understand, and also struggling to find good learning resources for, are the ways to create interaction between multiple solvers. I'm interested in setups for one-way interaction (eg. pyro affected by bullet/rbd sims) but even more keen to understand two-way (or more) interactions. For example, how to have cloth and bullet (and perhaps pyro as well) all working mutually in a dynamic simulation, all affecting each other. Can someone point me in the right direction towards learning how to combine different solvers together? Are there generic ways for doing this (in other words combining cloth and bullet would involve the same understanding/setup as combining pyro and cloth), or does every solver/combination have its own idiosyncrasies when trying to combine? I found this video about combining pop and bullet solvers: https://www.sidefx.com/tutorials/combining-solvers-with-a-multi-solver/ I assume a good understanding of the multisolver is key here. But the multisolver doesn't accept the cloth solver as an input, so it seems like there must be more to it than that... Any help much appreciated!
  18. Hello, In Houdini 16 is there a way to add a spring constraint to a Coth object. Want to simulate rope/cable anchors. A standard pin constraint with Soft doesn't feel like the cloth is tied down by rope and would also like to have that Max length parameter. Alternatively, if I can use a Wire simulation to be used as a spring constraint that would also work. However, my attempts at doing this have been disappointing. Wire sim would either become the dominate force by pulling the cloth down like a lead weight or the cloth with pull the wire like taffy, And large values were used in the wire setting to no avail. Any thoughts? -Thanks
  19. cloth doubt

    Hi i have a grid cloth and i would like a group of points >prims (those straight in the middle) to be much more stiffer and less propense to bend than all the rest. it doesnt work im doing something wrong anyone can please take a look to my file? bendstiffness_attribute.hipnc
  20. Vacuum, Cloth?

    Hi anyone knows how to achieve this effect? I tried using cloth and sop solver, where in sopsolver I use peak sop that shrinks geo every frame, but how to make it stop when it reaches the collision geo? Thanks Janis
  21. Cloth arbitrary vel field

    Has anyone successfully gotten the "External Velocity Field" in the Drag tab on a cloth object to work? The docs indicate: "You should not use the Wind Force DOP or any of the other forces in DOPs because they will generate inferior results compared with the Air Drag model." So I've been trying to pass in a velocity volume, and dutifully using the Drag External Velocity Field slot as instructed, but no matter what I try, I can't get the cloth to respond. At first, I thought all I had to do was reference the velocity volume directly from the EVF slot, with some sort of syntax: /obj/volumeObject/volumeVelocity1:vel or some such. Failing to get that to work, I searched for example files, and all I found was a Wire Solver example (the Wire setup has a similarly named EVF slot), wherein the velocity volume was loaded into the DOPSolver via a SOP Vector Field DOP and attached to the wire. The EVF field was left at the default "vel", and the velocity volume was named appropriately (vel.x, vel.y, vel.z). But trying the same thing with the cloth solver still gives no response. I've attached a simple file that indicates what I thought the correct setup should be. What am I doing wrong here? test_v2b_clean.zip
  22. Hi, I'm wondering how to go about creating a static shape of a stretched cloth/rubber sheet. Something like this: I've got an overly complicated version working where a set of points are constrained to primitives belonging to another geo but I suspect there is a way define pinned points and everything else is under some stretched force? Maybe initial state or rest geo is just a smaller version of itself? Thanks heaps!
  23. Animal Logic (Sydney) are looking for experienced Houdini Character Fx Artist and TD's Applicants can apply here: http://www.animallogic.com/Careers/Jobs (Sydney -> Senior Character FX TDs – Peter Rabbit) We are seeking High Mid + Senior Character Fx positions Basic Details/Requirements: Artists will be Responsible for the generation of shot-based, skin, hair, feathers and cloth within Houdini. Production experience in television commercials, film or animated features A very good understanding of Houdini, ideally specialised in the following sub disciplines Cloth solvers (Houdini's own solver or Carbon cloth plugin) Wire/Hair solvers (DOP and SOP workflows) Vex/Python scripting Skin deformation techniques Creation of Digital assets thanks for looking Miles
  24. Cloth Pieces Activation.

    Hello Guys, I am doing a shot in which there are cardboards on the wall in the hallway. I want the pieces of cardboards to fall as if the force is coming towards camera. I was able to do the simulation Fractured object and rigidbodysolver a with point activation. But it doesn't give feel of cardboard. I was wonder if there is any way to activate pieces of cloth using the "activeValue" in dopnet? I have uploaded a example file for the activation. Please let me know if there is any similar technique to control cloth object. Thank you. cardboard_fractured_object_v002.hipnc
  25. Hey guys, I really need some help here, I'm in the middle of a project and can't export the simulated cloth with proper UVs (exporting it as alembic / must work in Maya) Here are some statements about the situation: - if I export the grid mesh, with no simulation, the UVs are read correctly outside of Houdini; - if I export the simulation, directly from the dopimport1 node, it doesn't work outside of Houdini; - the UVs are ok when I import it back to Houdini (and unpack the geometry); - the cloth is gettin' ripped on my original scene, this way I can't use an attribute copy to get the uvs from the original mesh (since it's point count is changing); - If I import it to 3ds Max, it work's at the first frame but as soon as I run the timeline it get id of the uv. I can get the 1st frame uv to stick to the object if I add an Unwrap UVW modifier to it. Tried to export it from Max to Maya but it doesn't work; I did a quick test here in a much simplier scene, with a plane only and get the same problem. The scene file is attached + 2 exported alembics (with and without simulation) Thank's in advance Cloth Problem.rar
×