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Found 134 results

  1. painting maps on cloth object

    Hey guys, I am trying to have an object burst through a cloth object but was hoping I could paint maps to control where the paper will tear. Does anyone have experience with this? Should the map go into the Fracturing Threshold or the Target Stiffness? I attached my scene. Any ideas would be helpful! Thanks so much Chrisclothtear_rnd_cr_v005.hip
  2. Cloth Pulling wires

    Hi guys, This is a test I have so far: I'm trying to attach cloth to a wire. This was semi successful as you can see in the video. though a lot of weird things are happening. Ideally I'd like the cloth to pull the wire in the wind. It needs to be a wire with celebratory flags on it. like this: https://img0.etsystatic.com/000/0/5188417/il_fullxfull.281185156.jpg How would one go about this? theoretically the wire should be quite low in resistance but due to the drag of the flags it should move. Am I correct in thinking that the flags should be cloth objects (driven by a wind force) constrained to a wire? Any tips or advice are greatly appreciated . Wiresolver.hip
  3. Are you a recent graduate looking to start your career in Animation? Are you graduated from Computer Science related major with interests in art and animation? Would you like to work with some of the top talents in the animation industry? Check out this exciting apprenticeship opportunity with Oriental DreamWorks in Shanghai! Oriental DreamWorks will start the FX R&D Apprenticeship Program in August this year and there will be several more apprenticeship opportunities in other departments in 2015! The Oriental DreamWorks apprenticeship program is an incredible opportunity to learn from the best and to gain valuable production experience. We are looking for the most motivated individuals to complement our team. The FX R&D apprenticeship is a paid program and will last for 2 months which may lead to full time employment. What you can learn from the FX R&D Apprentice Program? · Learn to create visual effects using particles, rigid body simulations, fluids and smoke. Develop/Enhance your skills at animation, modeling, and simulation design Collaborate with animators, character riggers, and department supervisors Write utility scripts and programs to streamline the setup process Use Maya/Houdini tools and ODW Advanced Technology to develop FX tools How to work in a production environment for a feature film What you could get after the FX R&D Apprentice Program? You will receive a certificate which shows you participated in Oriental DreamWorks Apprenticeship program. If you’re successful in the final evaluation after the apprenticeship period, you may be offered a full time employment at Oriental DreamWorks! The FX R&D Apprentice is responsible to design and create visual effects such as smoke, destruction and fluid simulations. They will also be responsible to develop tools used in FX to help enhance the pipeline. If this sounds like your field of dreams, read further for the kinds of proficiencies we are looking for: Technical Skills: Knowledge in Computer Science, Software Engineering, Animation or related field with programming or scripting skills Basic working knowledge of Maya, Houdini or another 3D package with dynamic simulation capabilities. (particle, cloth, fluid and volumetric simulation) Basic understanding of natural and physical based movements or physics Aesthetics — Visual Judgment and Design: Good visual sense of motion, design, and physics Fine arts background with life drawings, sculpting skills are plus Other Requirements: Graduated in Computer Science, Software Engineering, Animation or related major Strong communication and presentation skills Related working experience is a plus PRC or Authorized to work in China Application Deadlines: The application deadline is 31st July Target start date will be 24th August 2015 and end date will be 13th November 2015(Subject to change) How to apply: Please submit your resume and demo reels (e.g. student work, personal work or project work) online at careers.oriental-dreamworks.com. When you visit the career page, Please ensure you click on “Apprenticeship” and not any other job postings to ensure we received your application correctly. Please note, due to a high volume of applications, we cannot respond to every applicant.
  4. Skinos Mastiha Spirit

    VFX work for Skinos Mastiha Spirit TVC. I was responsible for the FX and shading/lighting of the pack shot scene. All FX done in Houdini Indie 14. Geometries transfered to 3ds max through alembic and rendered with VRay. All volumetrics rendered with Mantra. FX list: scene01/head - smoke solver and cloth (dry ice type atmosphere and hair ribbons) scene 02/diver - cloud FX (clouds) scene 03/girl - smoke solver (dry ice type atmosphere arond the dress) scene 04/frame - ocean FX (sea) scene 05/glasses - FLIP (liquid inside the diamond shapes) scene 06/mirror - cloth (cloth covering mirror) - for this one nCloth worked better scene 07/packshot - FLIP and RBD (liquid inside glass and ice cubes) Thanx for watching
  5. Falling Bag with Cloth

    Hi, I'm trying to make a plastic bag that's falling. The first time I tried a while ago it worked by just having an initial force to disturb it a little bit, but now I can't seem to achieve the same effect. I've tried with a wind force with high frequency as well, but it still falls like a paper and keeps it's original shape instead of having a nice flow like a paper bag would. How should I approach this? Should I try working with a velocity field? Is my model causing a problem? Thanks in advance! bag.hipnc
  6. houdini 14 cloth penetration

    hi there, when i do some cloth simulation in houdini 14, and when collision intersect each other i have that problem, in houdini 12 it good but in houdini 14 it dont work, so what i missing here??
  7. I'm having some trouble using alembic as deforming collider for a cloth object. my goal: transfer an animated character from maya to houdini, simulate cloth on it and export it back for rendering I just can't seem to get the cloth to react to alembic objects. Even a simple test with a cube exported from houdini as alembic, reimported and used as a deforming collider for a simple grid turned into a cloth object doesn't seem to work. (using the shelf tools) I'm fairly new in houdini so i might have overlooked something super simple (i'm using Houdini Fx Version 14.0.201.13)
  8. Falling leaves sim

    Hello! I'm quite new to Houdini - still trying to grasp some concepts. I need to create falling leaves simulation. I have been trying out different ideas but have some questions: 1. Is it possible to have normal/tangential drag (like in cloth objects) for RBD objects - to have some sort of aerodynamic effect ? I would like to use RBD to simulate a lot of leaves faster as I don't need soft deformations. Cloth sim gives very natural falling motion with normal drag active, but is very very slow for several thousand leaves. 2. I am creating my geometry using simple copy on scattered points and then doing Assemble to create individual leaf names. Partition to group them by name. Then feeding it all to DOP. The question is - what would be the best approach if I want to remove from simulation all the leaves which have reached certain condition - i.e. they have collided with the ground (or some other condition - i.e. leaf velocity is 0 for last N frames (For cloth it would be average velocity of all leaf points)). I need to keep the geometry around and render it, but I would like to remove it from Cloth/RBD simulation to speed things up. How are this kind of problems usually solved? Is it possible to remove objects/pieces from dynamic simulations?
  9. Cloth flicker issue

    Hi guys, I would like to seek some opinion on an issue that I have while i am rendering my cloth sim. Would appreciate all your help and inputs When my model is doing a pretty drastic movement, my cloth render will have this weird black flickering as shown below: Does anyone of you have experience doing cloth simiulation and know what is the problem? Thanks! Darren
  10. Hi all, I'm doing a simulation of a cloth sail being gathered up. In real life, and in the final render, it would be done with ropes that loop around the bottom of the sail and pull it together. For my testing, I'm using thick 'hooks' that pull the cloth upwards. It sims verryyy slowly. I'm sure there must be a better way. I'm open to suggestions and I've included my file if anyone would like to take a look. I feel like I ought to be considering an entirely different type of collider. A point or wire collider - if those exist? In the dopnetwork I'm bringing the hooks in as a 'staticobject' that I've also pre-converted to a volume and using as a 'proxy volume' in the Collisions - Volume tab. Most other settings I've left at their defaults. The hooks are as thick as they are because I found that thinner ones kept passing through the cloth. 'regards, Sim cloth_hook_01.hipnc
  11. Cloth: Per Object Collision?

    Hi, I'm testing a setup where I would want to procedurally assign collision relationships on a per object-to-object basis. Say I have 2 Cloth Objects (cloth_0 and cloth_1), and I also have 2 Static Objects (box_0 and box_1). I would want the ff partnering: box_0 to only affect cloth_0 box_1 to only affect cloth_1 Currently, it works if I'm assigning it manually using the Collide Relationship DOP. (The setup below was modified to allow multiple objects to be created per primitive group). Later on, I may want to increase the number of partner objects.. Is there a way to go about this procedurally? I tried using the $OBJID on the Affected/Affector Objects parameter like this: I also have primitive groups named piece_* for each object: cloth_0 and box_0 are on primitive group piece_0. cloth_1 and box_1 are on primitive group piece_1. But don't know where or how to use the data to assign custom relationships. I'm also looking into creating an indexing attribute that I could use to assign the partner relationships but haven't had any luck making it work. I've attached a hipnc file below. Any help to point me in any direction would be very much appreciated BTW, Happy New Year guys! cloth.custom_affector.h13.v01.01.hipnc
  12. Houdini FX TD for SHED in Montreal

    Hi everyone SHED is looking for a talented and skillfull FX TD working on Houdini for a permanent position in Montreal. Artist will have to cover the scope of those different tasks that we often need to produce: - Rigid and Soft bodies - Fluids - Cloth - Clouds - Fire, Smoke Anyone interested into this position can email me directly at sly@shedmtl.com thanks sly Sylvain Lebeau // SHED V-P/Visual effects supervisor 1410, RUE STANLEY, 11E ÉTAGE MONTRÉAL (QUÉBEC) H3A 1P8
  13. Hi all,I just have a little question about painting cloth stiffness. I was doing some test at home and I tried to paint in the attribute for cloth stiffness based on a few example from previous threads : http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=18437 https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&p=108649&highlight= I tried to replicate the method on my own but came to no success. Is there a new method of painting attributes to cloth in H13 or I am just doing it wrongly. This is my hip file which I did some testing with : paintstiffness_test.hipnc Appreciate all your help guys!! - Darren
  14. pintoanimation cloth not working in H13?

    Does the pintoanimation attribute work with cloth in H13? Simple .hip file attached, what am I doing wrong? I am pulling my hair out trying to figure out cloth in H13. trying to learn from the crumpling masterclass but I cant get any of the files to work in H13!!! Hope somebody can shed some light on this. Thanks pintoanimation_test.hipnc
  15. Tearable Cloth - H13 - WIP

    I got a bit tired of not having tearable cloth in H13, so I decided to have a go at creating my own tear solver. This is quite basic, just measures a polygon's rest area vs. its deformed area and creates a tear based on that threshold. (Check the "group_breakme" node inside the sopsolver to see the tear threshold) I also decided it was best to pre-fracture the geometry so I could get nice, art-directed tears. Just posting this in case anyone is needing a solution. If anyone knows a simple way to spice this up or make it more correct, let me know. -Adam ClothTear_V01_01_as.hip ClothTearSolver_01.mov ClothTearSolver_02.mov
  16. Hay Bail Simulation

    Hey everyone, I'm trying to set up a simulation for a project and was hoping someone could give me a little advice. The effect I'm trying to achieve is a loose bail of hay falling on a character (who is covered in mud) and for the hay to then stick to the character as he moves; hopefully with strands falling off randomly as he goes. If anyone has any ideas what would be the best way to tackle this, it would be much appreciated. Thanks, Jamie
  17. 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
  18. Permanent Dents with Plasticity in H13

    Wondering if anyone could shed some light on translating The Denting Spheres example in the Cloth Masterclass using 13 Finite Solver?
  19. I'm working on an effect where cloth snags on objects (tree branches, etc.). I've connected a cloth solver to a multisolver and use a sopgeo to delete the cloth that comes into contact with the object (later in the network, I use the remaining edges to snag the cloth). The sopGeo and the rest of the sim keep going, deleting the cloth points when the cloth comes into contact with the snag object and animationg the snag object but the cloth animation freezes. The cloth solver reports that it cannot obtain "P" from the cloth SOP rest node. Any ideas? I think DOPs stops updating the DOP import node but can't figure out why. Thanks, Kevin
  20. Hi! I'm trying to create a leaves generator to attach to a fluid simulation and I'm doing this way: Create a particle system, create the geo (planes) with the copy sop, import it as cloth and then make it work with the existing pyro simulation. It work well, but I have a problem: I can emit particles just the first frame, otherwise the cloth give me an error, as the initial geo has changed. How can I emit particles/geo on every frame I need? Other point: is there a way to pass the particles ID info to the cloth object, so I can vary the mass attribute per object?
  21. Pin To Animation - Gradually Activation

    Hello!!! I have had some problems with tearing patterns in a cloth object, because the simulation is not that directable as I would want it to be. So what I tought is using from the begining two separate cloth objects with some points constrained to animation, and then gradully break the pin to animation flag to the silhoute that the points form and so have a more directable tearing effect. My question is, how can I tell the Points parameter in the targetConstraint DOP to use a group of points that is outside the DOP network? If it helps I've attached an image that illustrates the effect that I would like to reproduce. Any help would be very much appreciated, thanks a lot!!!
  22. Paper Tearing (I've been stuck for weeks!!!)

    Hello!!! I've been working quite some time on the simulation of a paper tearing effect, and I think that i have managed to get some results but I'm stuck at one part, which is the tearing, and so I have two questions about that: - First, I want to have the cloth to tear very easily, but if I turn up the fracture treshold I get a lot of single polygons floating around. Is there a way to keep those plygons together so they don't explode in all the scene. - How do I make the polygons to tesselate or get projected from another surface, so that the topology of my grid can match a pattern. For now I have just used a jitter node to get a more random position for my points, but i would like to hace my patter projected onto it, I'm attaching the files with my progress so far, If anyone can help me out with this I would very much appreciate it since I've been stuck with this for weeks. Thanks a lot! Edit: - I have uploaded a screenshot of what's happening if that helps to illustrate better the problem clothSimTest_11.hip
  23. Shredding cloth

    I'm trying to tear cloth that snags on hooks by deleting the "snagged" points. In the attached hip file, I've set up a simple cloth object constrained at 2 points and being blown into a box object. In DOPS, I added a SopSolver that references a SopNet. In it, I objectMerge in the box object from SOPs, attach a delete node and that's it. The SopSolver and the clothsolver get atached to a multisolver.The problem is that when I turn on the SopSolver, the cloth object disappears. I think this is b/c the SopSolver is grabbing the P data for the cloth but don't know how to prevent this. I'm have worked in DOPs a little but not with the mulitsolver and SopSolver. Thanks, Kevin cloth.hipnc
  24. Cloth (Paper-like sim) Tear Mapping

    Hello!!! I'm kinda new to Houdini and I'm working with cloth simulations, I would like to make a tearing paper simulation using the cloth solver and wanted to have the areas where it can be torn be driven by a color channel of a texture, say, the red channel for example. I tried creating an AttributeCreate followed by a AttribFromMap but this doesn't seem to do the trick. I'm attaching the files that I'm currently using if someone can point me in the right direction in order to achieve this. Thanks a lot to everyone whoever gets to read this, any help would be very much appreciated!!! clothSimTest_05.hip
  25. Exploding bunch of flowers

    The model's just from a little playing with the copy SOP. There's stamens and polen in there too with the petals. And darn, but the pollen is expensive. https://vimeo.com/71763469
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