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Found 25 results

  1. I'm having trouble with mantra rending hair with houdini16. I keep getting an error message. [17:06:10] mantra: Unable to resolve geometry op:/obj/geo1_deform/OUT_GROOM. Please ensure the object is included for rendering. You can turn off vm_renderable if needed. Invalid detail specified Invalid detail specified Invalid detail specified I don't know how to turn off vm_renderable or what is causing mantra to fail here. Is this a bug? any help much appreciated B
  2. Hi all, new to this forum, I'm posting something I tried to get help in other forums with no much luck. Maybe here someone has some info about it. Thanks in advance.I'm starting to use Houdini migrating from Maya. Along with a ton of questions and things to learn, I'm looking for help on how to pass the skin UVs into a fur system, using the Arnold Hair shader. There is a UV tab with U Parameter and V Parameter to call, but I couldn't figure out what to get there. I've seen a few tutorials doing so in Mantra which look straight forward, but not in Arnold for me.Thanks
  3. 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
  4. Hi, Is it possible in H16 to use an external field to affect the Hair Guide dynamics? Like for example a Vortex Force. Tks Cheers!
  5. Houdini FX artist specializing with hair and curves generations is needed for on-site contractor work in the Silicon Valley / Los Angeles area. Must have the ability to work within a VRay/Maya pipeline and create, rig and control intricate patterns like below: https://vimeo.com/59736707 Please send demo reel and examples to: joelangmuir@gmail.com and I will forward to my manager and recruiting.
  6. Looking for some help on setting up a Wrangle that would curl a curve by rotating the last point in the curve around a point centered on the previous point, and doing that all the way down the chain so you get nice curls happening. Been trying to work this out but I'm missing some knowledge here when it comes to looping through points per primitive, and also I'm not sure how to rotate a point with the rotation origin starting on another point. Basic idea is that given an @N and an @up vector on the curve, it will rotate each point about the previous point's @P using cross(@N, @up) as a rotation axis, by some user defined degrees/rads number. The code would have to (far as I'm thinking so far) loop through all prims, and then loop through all points in each prim, rotating each one around the previous point.
  7. Hi guys, I need to export some hair as alembic but it's not as easy as it looks like. I think it need to be converted to geometry first. Do you guys have any idea on how to proceed?
  8. Hi, I have seen this lion fur in vimeo and would really like to know how to do something similar,how to achieve that level. There is a tutorial from cmiVFX with a lion as well but you will see the huge difference in result, I need something of this level: Thank you
  9. Hi, "Paint length" and "paint bend" for FUR is not on the shelf in Houdini 15.5 (Hair shelf, Grooming shelf). Is there a new way of doing paint length, especially shortening the length with the paint? And how do I paint the bend for the fur in Houdini 15.5? Thank you
  10. Hi everyone I just recently started playing around with Houdini hair after finishing a very difficult job done with Yeti. I am trying to assess houdini hair as a possible new solution for hair and fur. But I have one small issue that I cant find any solutions for it: Basically after setting up the fur for the model (I am using the Add Fur tool from the shelf) everything is fine and I can use the different attributes like length and bend to adjust the overall look, But as soon as I groom the fur using one of the shelf tools like "length adjust" or "cut hair" I cant tweak the overall attributes like length or bend etc anymore and it seems like after grooming the hair using any of these tools I lose the ability to adjust the overall attributes. I was wondering if this is probably a bug in hair tool? I have attached my test scene as well. I would appreciate any helps. Thanks in advance! Sina fur_pipe_test_01_v01_t05.hip
  11. Hello my Houdini Folks, I hope you guys are doing well and creating A class Sims. I am tasked with creating Houdini fur for a talking animal, We are replacing the mouth with the animated one on the live action puppet. So basically my task is to match the groom with the plate. We first were looking at the Xgen Approach given its in Maya and we can render from Maya itself. But because Xgen is a pain and very buggy i transferred the task to be done in Houdini and rendered out in Mantra. I have the groom which looks if not the same, close to the puppet. But now the issue is to transfer the same fur over multiple shots with different camera info for continuity sake. I exported the camera and animating geo in Houdini. But with each shot, the geo is at different location in space because each shot is tracked separately. For transferring the fur over accurately, the geo needs to be in close proximity, with slight change in positions. I tried the recache strokes and transfer based on UV approach. But still, to get the groom match accurately it has to have same position as the fur geo we are transferring from. Did anyone in the community have worked with Houdini fur and transported the fur over multiple shots with different camera and geo positions? Any input will be appreciated. Thanks Harsh
  12. Wanted to start learning more about the Hair and Grooming tools inside Houdini 15 this week. I really like the controls that Houdini has when painting density, frizz, clumping and width maps. I learned a lot from @abvfx and his vimeo videos https://abvfx.wordpress.com/. A problem that I have yet to solve is creating different size clumping on the head hair. I want to have smaller clumps on the side and back of the hair. Then have larger clumps for the top of the hair. I tried painting different clumping density values to vary the clumping. There is probably a way in the Clump Tab within the Fur Node that I am missing. The head hair, beard and eyebrows are separate Fur Nodes which gave me better control over the hair. I am not sure how much of a performance hit this will give me when I animate the character. The model came from one of our character artists, Aaron Gutierrez.
  13. Our new GridMarkets Houdini artist feature profiles Charles Trippe, FX Lead at Zero VFX. He shares his thoughts on a hair simulation system he developed, which can be seen in action in commercials and films such as Kia: Evolved, and the upcoming Ghostbusters movie. We hope you enjoy the feature! Patricia and the GridMarkets team
  14. I want to create a ball of yarn, this is what I tried; create a sphere, apply fur but I can't figure out how to get the thickness and get it to wrap around with layers upon layers, if I recall, Houdini has strands could that be another option ? If so how do you access strands, there was no nodes called strands ?
  15. follow topic... I'm a beginner Houdini and I need to create hair form plane or curve, how to do this? T T like this This link look like create hair from curve but are there how to create form polygon? And how to do this in houdini? T T Thank you PS. Sry for my eng
  16. Hi all, Im fairly fresh to the houdini fur tool set (Houdini 15), im coming over from shave / yeti. I have fur setup on a creature no probs but im stuck with a few simple things that I cant seem to find a simple answer for. 1) Guide Hairs Guide hairs work a little differently in houdini to what im used to in terms of dynamics, one thing I cant work out is how to lock or "bake" a groom down using guide hairs for non dynamic response. For example I have a creature that I have groomed, when I translate the character's base mesh or have the base mesh deform the guide's remain at the origin? I would expect them to follow without having to add dynamics, Is there a way I can create a groom using guides and have it stick to a mesh thats translated and or deformed without the use of dynamics? 2) Scale Im unsure as to how to handle scale with the fur tools, our pipeline will bake down scale into the animation mesh so I have no scale information. In my case, one creature is being instanced out multiple times using the same fur setup however they are all at different scales Thanks guys! really appreciate any help I can get.
  17. cmiVFX Releases Awesome Houdini Facial Hair Grooming Video High Definition Training Videos for the Visual Effects Industry Princeton, NJ (October 28, 2015) Several months in the making, cmiVFX Research releases an epic video on how to groom human facial hair using SideFX Houdini Animation Software. Artist, cmi’s Chris Maynard, researched hair sculpting in conjunction with hair styling students of an international beauty school as well as popular NYC salons to come up with his ground breaking technique of “Render Softening” using digital hair to dither CG renders for a more realistic look. In conjunction with all of these resources, we added the compatibility with Solid Angle’s Arnold Rendering system to leverage the power of inoperability between several major animation packages. Using Alembic support allowed for us to get true congruency across multiple platforms. To add even more excitement to this already amazing video content, we recorded dual monitor high resolution screens to be displayed in our new higher resolution playback formats! No matter what kind of device you are on, or whatever location you are in, we have a solution for you! The cmiVFX website is designed to work 100% of the time using our redundant cloud servers and multiple device support, which is why many global developers are now using our site to test their own networks for problems! At cmiVFX, we are not only the teachers, but life long students. We take our customers feedback seriously, so our website will keep getting better after each new video release. Houdini Facial Hair Grooming is a major video milestone for us, allowing our extremely popular, “outside of the box” methodology to help guide you as the viewer in a way that is both fun and intriguing. For the cost of a family dinner, you can increase your chance for consistent work exponentially. To assist you even further, we will even help you get a job doing what you love. Simply watch a video, then tell us if you want to do this for a living, and we will help you get started on a path to happiness and success. You can rely on cmiVFX.com to help you be the very best you can be! Purchase this video now, and start making all your characters more detailed today. Vimeo Teaser Trailer Short Description Chris Maynard shows one of his legendary VFX tricks of hair blending and “Render Softening” using Houdini. SideFX Houdini Facial Hair Grooming https://cmivfx.com/store/653-Houdini+Facial+Hair+Grooming Chapter Descriptions Introduction Get a quick preview of the content of this video before getting started. Did you know more than 70% of the women in Chris’s family worked in the Beauty Industry? He had attended dissertations on the latest research in hair growth and maintenance as a teenager when his mother was an instructor for Hair Styling and Chemical Treatments in New Jersey. One of his many side jobs was helping maintain a family salon geared towards the Music Industry where he was soon introduced to his initial career in music. Setting Up As an ongoing software UI designer, Chris tends to arrange his workspace for the most efficient level of effort. By reducing the amount of UI clicks, we can spend more time on visualizing changes. It is very important to keep your eyes tuned to the desired object in edit. Base Hair During the years of research in CG, VFX and Design, it often becomes very clear to work from large to small. In this chapter we start off with the largest body of hair which we use a central jumping point to all the secondary and tertiary hair systems. We also cover the seeding of multiple duplicates to create various hair colors for added realism. Most people have hair color variations, as well as fine white hairs which help deflect light in various directions. Hair Blending Often ignored by low level animations, hair can create hard edges that lack reality. Especially, with shorter hair styles, the technique of blending is required to taper between hair types and lengths. This chapter is a key link between the base hair and the rest of the hair systems. Hair Line Sometimes, some variation is required to help pull the eye in a different direction. In our first “Render Softener” we use a bridge of fine hairs to blend the forehead into the head hair. This technique will be used in every digital hair style for the rest of your career and is probably worth the price of the video all on its own. Beard Shadowing How many times have you seen beard shadow added into the texture maps of a character? That might look ok from far away, but on close ups, it just will not do. This chapter we use not one, not two, but THREE different hair systems to make up the 5 O-Clock Shadow of the face. Another ground breaking technique of “Render Softening” is to use it evenly around the object of desire. Eye Brows This is one of the more tricky systems of hair styling. In this part of the video, we will use nearly all the grooming tools on the Houdini Toolbar. The eyebrows fall into our 80%/20% technique, so we allow for the ability to tweak at the end. Eye Lashes Because the eye lashes are going to be moved by animated morph objects, we must make sure they follow the proper direction and help keep them from colliding when the eyes close. The ability to tweak the lashes during this scenario is available, so we are able to design the base look which will be adequate for the animation departments later on. Auxiliary Hairs There are hairs all over the head, face and neck. Find out how to create hairs that cover every single polygon over your entire model and how to shade them appropriately. Ranging from nostril hair, to forehead hair, you will learn more about yourself here than ever before! Final Touches The trick to working in CG is to nail down 80% quality of all your objects until they are all together, then finish the last 20% with all your parts in one place so you know they will work as one. Working in any other way will take much longer and could yield a lesser result in the long run. Wrapping Up Find out how to set up Arnold Hair Shaders and Lights so that you can go back and forth between Mantra if needed. This video was meant to work with other cmiVFX Hair system videos so that no matter what application you are in, the end result renders the same. About The Instructor Chris Maynard is an international software GUI designer and the owner, Chief Public Partner, as well as Head Researcher of the profit-sharing organization known as cmiVFX.com. Project Contents All cmiVFX videos come with all the training materials you need right from our website. No matter what time of day, your location, or how your feeling, cmiVFX will be there waiting for you! This video is available today at the cmiVFX Store: www.cmivfx.com About cmiVFX cmiVFX is the leader in High Definition Video Training for the Visual Effects Community. Register for free and receive hours of free content at the cmiVFX Video-on-Demand Player. Copyright 2015 cmiVFX | cmiStudios. All rights reserved.
  18. Hello everyone! I'm a new user in Houdini and I’m trying to make some realistic fur/hair. I know is possible, but I don’t know how I can do it... how I can curl some specifics guide using the standard fur system of Houdini ? Thanks for anybody can help me! Lort
  19. Are there magic tricks I should be aware of? A checkbox to make hair renders quicker? Historically there've generally been tricks for rendering hair/fur quickly or more accurately (Renderman's Sigma hiding, MR's hair presets for example), and I was just wondering if there was anything I needed to know in Houdini beyond the usual Mantra tweaking to get good times on hair/fur?
  20. Guys, I need help with long hair! Hair does not follow through guides. Someone understands? All the details in the picture! HIP and OBJ: long_hair.zip
  21. Here is something I started in Houdni 13 and picked up again when H14 came out. I'm learning/exploring, so it is taking a bit of time to find a good workflow for modeling. H14 made that easier, and hopefuly it will improve some more.
  22. Is it possible? I just had a quick play with creating hair in Houdini and it's great (much better than doing anything in Maya without plugins or xgen!)
  23. after many days and nights, after many emails, discutions, crying to the moon, etc... thanks to everyone that helped create the tool, between coments, ideas, hints on how to do things, coworkers, the guys in the forums, Sesi, etc... here is the first Beta!!!! https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=34347
  24. What hair does not grow? Standard sphere, Add Fur and Add Dynamics from Fur shelve. At the end of the dynamics the standard windforce dop. Why is this happening and how to stop the growth? Something trail SOP in guides, huh? http://youtu.be/Qr-2cM2vtrc simple_sphere_fur_bug_01.hipnc
  25. Hi , im quite new to the houdini world, and thanks to the forum and lots of free video tutorial im getting quite excited about it. I was wondering if you can point me out to the right direction on understanding better the way Fur grooming works in houdini . For example what kind of techniques should i use to add custom guides to a groom, how would i go into modeling or comb the length of the existing guides ( for example if i want to create an Elvis looking spline/guides), Should i model the Guides splines or the Clumps ones (i know Guides are for dynamics but in other softwares are also for the look, what about clumps?) ? From the fur preset i can only enter the guides/clumps as a whole, can i separate them to act on a one by one? or at least is there an easy way to get to one curve only components at time? How can i set a rest/goal pose for the dynamic curves guides, can i act on indivudual guides aswell??? Do you think would be possible to paint in view port a curve, moving the mouse around on a view plane/surface (with the paint tool?), and tell the surrounding guides to follow that painted curve? Or is there a way of selecting few exact guides and make them follow a poligonal surface ( i tought maybe modeling out a modified poly cilinder and making the surrounding guides to snap on the cilinder lenght )? The brush comb that houdini uses at the moment, are only working from the bottom of the guides i think they are nice but when it comes to a more advanced/specific type of creature/groom, i find them hard to use. I come from a maya background, and im trying to get my head around houdini, i simply fell in love with mantra and im trying to switch my fur/render pipeline from maya to houdini. thanks