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Found 102 results

  1. Sketch and etch style

    Like everyone else, I use a bunch of tools for my work. But I found myself using Houdini more and more for 2d work, including making a sketch or etch style of pictures like these. I did it using sops, and while I imagine there is at least a million ways to do that in Houdini, it was bloody fast, took just a few nodes, and with plentiful variations.
  2. Poly Carve SOP

    http://www.patreon.com/posts/31506335 Carves out polygons using a point attribute with the ability to define the carve values per primitive using primitive attributes. Pure VEX implementation, 10x faster than the default Carve SOP (compiled). It preserves all available attributes. It supports both open and closed polygons.
  3. Hi! I'm loading an .obj file that contains multiple pieces of geometry(with different names). I want to apply Boolean to every pair of them, to union them into one big object. I'm assuming I'll probably need to use the for loop somehow, but I can't seem to figure it out. Can you help me out?
  4. Hello everyone, Welcome to procedural modeling in Houdini. The idea behind this training was to take a character model and then generate an armour or a second skin on top of it completely procedurally, and also have the armour or skin design change every frame to give you multiple variations. For more information kindly click on the link given below https://www.rohandalvi.net/procedural regards Rohan Dalvi
  5. I have a line hovering above another object (in this example, it's just a grid, but it's more irregularly shaped in what I need). I would like it so that the line length matches the width of the object directly underneath, without reorienting the line, and preferably without actually snapping it to the new point (in y). Ideally, if I could extract a bbox D_XMIN (/MAX) (or a getbbox min.x), but only at the point in z where the line is, then I could just translate the points to that location. I'm sure this is super-simple, but I'm not quite sure how to go about it. A ray SOP gets me in the ballpark, but presents some problems, as in the pics. Thanks! lineray.hiplc
  6. Procedural Armour generation

    Hi, This is going to be my next training series. Procedural armour generation in Houdini. There's still a lot of work to be done. I need to detail the torso, the neck and finally build a head gear. But it's coming along fine, so I figured it looks decent enough to share.
  7. select corner points

    I'd like to select corners points here, I've tried and my wrangle does not work Can you tell me whereis my mistake ? Thank you hdni_untitled.hipnc head.obj
  8. link two points with a curve in vex

    I have a grid or any geo and I need to join two points with a rounded curve is there a way to do this in vex ? Thanks hdni_vex_curve.hipnc
  9. UPDATE An update on this project... The procedural tool is complete and my first space station is done! Now to blow it up and crash it! Here is a proper presentation of the tool You can also check more details, and some high resolution pics, at my artstation page: https://www.artstation.com/artwork/v1X09v -------- I made a tool that can be used to create space station modules for production of VFX. Basically all geo is water tight and easily subdivided and ready for Mari or Substance Painter... I didn't made the textures procedurally because I feel the hand touch in textures would add realism to the objects. The tool is 95% ready I feel but I am in the process of making my first Space Station... here are the samples: HDASample.mp4 And first render test:
  10. Procedurally generated cyberpunk building I've done this project before one year ,I draw a simple concept then I try to develop a complete procedural system inside houdini , it was fun experience Hope You Like it vimeo link : https://vimeo.com/349515288 behance: https://www.behance.net/gallery/83268643/Procedural-Cyberpunk-Building
  11. SHOUT OUT & Thank you to David CGMK: we have a new Houdini video posted by author David CGMK on our CGCircuit tutorial website, so if you were looking for a great "Intro to Terrains for Games in Houdini and Unreal" tutorial - check it out!! ; )) and thanks David CGMK awesome work! http://bit.ly/2jRl7ss
  12. Hello!teacher after copy2 node, How to connect these pieces by procedural ? ------ Excuse my poor English,Sincerely ask ! lianxi copy-1.hipnc
  13. I am trying to set the pivot/center of a geometry to the center of a specific face, but I'm not sure what expression I need to get the location of a face, (or even how to copy the hard location of a vertex or center of a face). I attached an image to show what I am looking for (i.e. I am trying to set the origin to the purple box, and follow the face when I change the extrude distance) Thanks!
  14. Procedural Fractal Spiral

    Hey guys, I have been scratching my head for a while with this. I've researched online, tried to use geometry deformers, attempted boolean operations with concentric spheres, even migrated to 3ds max because I remember some modifiers that created similar effects. I've had no success and I am a bit desperate. I want to understand the system at play in the images below. I hypothesize that you start with very simple geometry, namely some parallel planes that then are deformed to achieve this amazing effect. My other idea, as I explained earlier is to create concentric spheres that are then "cut" by a solid geometry that has the inverse of this shape. If any one has any tips, pointers, references or resources that could help me figure this out, it would be much appreciated. Thank you so much in advance for preventing more hair-pulling. Cheers, Bruno
  15. Connecting edges

    I'm beginning my switch to houdini from maya, a simple question, in maya we can select two or more edges and the choose to connect them with 1 or mor cuts, is there a way in Houdini to do the same thing ?
  16. Extrude shortcuts

    Is there a way in Houdini to extrude with shortcuts like in maya ? In maya with W and Shift + direction we extrude an edge R + Shift + direction we inset ... Thx
  17. Rocket Bus - houdini training

    Hello everyone, The primary aim of this training is to provide a project that will take the viewer through as much of Houdini as possible. Letting them utilize all the various tools that Houdini provides for modeling and VFX to generate a detailed environment. Currently the training is available for redshift and octane. Next week, I'll be recording the mantra version. There is a 25% introductory discount in the entire training till 18th may 2019 Click on the link given below for more information http://www.rohandalvi.net/rocketbus
  18. bbox (beginner question)

    It's quite a beginner question: how do I use bounding box information to let the sphere come exactly on top of the box, and the torus on top of both, in a way that when the size changes they all stay on top of each other. Thanks
  19. In Maya there is a very helpful hotkey for selecting the next/previous point along/beside a curve/loop for modeling. Does Houdini have a similar hotkey? Here's the Maya equivalent Pick Walk* Up Walk up current Down Walk down current Left Walk left in current Right Walk right in current
  20. Please be invited for another edition of the Everything Procedural Conference on Wednesday April 24th at Breda University of Applied Sciences. This year we have again an amazing lineup of speakers, including Yossef Benzeghadi (Ubisoft Paris), Anastasia Opara (Embark Studios), Marc Braun (Blue Byte), Thomas Altenburger (Flying Oak) and Simon Verstraete (eXiin). Besides we are introducing on Tuesday April 23rd the Everything Procedural Open Podium, open for everyone interested to show and share their own endeavors regarding procedural content for games. On Thursday April 25th and Friday April 26th we will host a two-day SideFX Houdini Masterclass which will let you explore Procedural Animation and the newly introduced Procedural Dependency Graphs (PDG). The Everything Procedural Conference previously took place in 2016 and 2018 and is gaining strong recognition as a leading conference in the field of procedural content for games. Please share, all invited! http://everythingprocedural.com/ https://twitter.com/everythingproc https://www.facebook.com/everythingprocedural
  21. Procedural Modeling Advice

    Hey guys, after exploring most sides of Houdini, I'm surprisingly trying to settle on Procedural Modeling as my main focus :D I know it's a bit weird since it's not Houdini's strongest tool, but before Houdini, I have tried Modeling in Maya and Cinema 4D and failed, but with Houdini, it seems so logical and straight forward to my mind. I'm trying to get a job as a 3D Modeller using Houdini here in my country (Egypt), and i need some professional expert advice from you guys on some points regarding the market and Modeling in general (worldwide not just a specific country): 1- Is Houdini used widely in Modeling in the market or not yet? and why? and how much is Procedural Modeling popular nowadays in Games and Film as well? 2- I dunno much about texturing and I'm planning to learn a texturing software besides Houdini, so far I'm choosing Substance Painter, do you guys have any advice regarding this part? 3- Is Mantra good enough for me? Or do i have to dive into other renderers later? 4- How to constantly learn and upgrade myself in the right path? What else to learn? If you can give me advice from your professional experience, that would be great. 5- Any other advice you could give me is welcome, even abstract ideas, anything really. 6- One last thing There are different ways to approach Modeling in Houdini, i know that all methods are correct, but as a professional, do each one have like a standard method to approaching weird curves and irregular shapes efficiently? or you mix and match different approaches? Do you usually do low polygons baring in mind to subdivide the whole thing in the end or you can just model it all high quality from the beginning? I mean, how do you think and set your mindset before starting your work? :D Sorry for the long long post, appreciate your help guys. EDIT: I'm not a newbie who wants to explore Houdini, I'm already familiar with it and with all the resources available and I spent some time learning it. I'm seeking professional advice from experts because I'm applying for Modeling Jobs these days and i have 0 working experience in 3D.
  22. Hey magicians, I'm doing some procedural vehicle setups inspired by Maciej Kuciara. I'm trying to make these type of tanks and what it comes to my mind is create differents blocks / modules, for the front, middle and back, and give each one some randomness on bevel edges / points and stuff. My question is: how can I setup the modules so, for example, they rotate in 90 degrees, and they plug on the right side, for example the front one goes always connected by the back axis. I think this can be done with if / else stuff? and expressions for the 90° rotation? any tips will be super handy. Thanks!
  23. Trying out Alexey Vanzhula's modeling tools called Direct Modeling Tools. Awesome workflow and it speeds up the process allot. I had no idea what to model so it's a bit long. Video of the process here. https://www.youtube.com/watch?v=PaQ3ZgyDJEo
  24. Hi all, Relative noobie here, looking for general advice on how I might approach modeling a cancer cell that looks like this: https://www.mskcc.org/sites/default/files/styles/width_800/public/node/167374/3x2/sciencesource_ss21694540_1200x800.jpg [www.mskcc.org] or this: https://static.independent.co.uk/s3fs-public/thumbnails/image/2016/02/15/21/1-t-cell-corbis.jpg?w968h681 [static.independent.co.uk] One physical feature of the cell that I’d like to pull off convincingly is the sticky-looking tendrils that shoot out from the membrane, that look a bit like viscous liquid has been shot out from the surface of the cell. Though something like the image in the above links would be ideal, I would settle for something like this: https://lymphomanewstoday.com/wp-content/uploads/2018/09/shutterstock_565670083_zps0eglo9ri-1000x480.jpg [lymphomanewstoday.com] I would want to avoid something like this (where the tendrils resemble veins, or maybe octopus tentacles: https://www.segnidalcielo.it/wp-content/uploads/2017/08/GoldNanoparticles.jpg [www.segnidalcielo.it] Since for now I only actually need a static model, my first inclination would be to start with a simple POP setup, have some particles explode off a spherical surface and append a trail SOP to get the tendril trails. I’d run the sim and use a single frame from it as the cancer cells base geo. This only gets me so far though, as there are other important visual details that I’ll refrain from talking about until I some experienced person can tell me that this is definitely the way to go. My other inclination, which I realize might be inviting insanity, is to create a “fluid explosion”, using a FLIP setup with some velocity noise coming from the SOP level, and playing with DOP node settings to get the right kind of viscous/stringy effect from the particles. From there, again, I’d run the sim and use a single frame of geo for the base for my model. I’ve so far made an attempt at this (file attached), though have only tried seeing what I could get by using nothing but some noised-up velocity on the SOP source, some DOP gravity and tweaking settings in DOP Source Volume and Solver nodes, pertaining particularly to viscosity and surface tension (though I’m not sure the latter is relevant). I’m able to get some neat looking effects, but not really the ones I’m specifically after. What I’d wonder here is whether this ‘explosion of viscous fluid with a very high tensile strength’ could even be achieved with a fluid sim, and if so, would I need to push/pull the “sticky/stringy” fluid outward by having the FLIP particles stick to a set of “collision” particles which are then launched outward, pulling some of the fluid along with it. Or, could this effect be achieved by simply applying velocity to a Fluid Source SOP with very low particle separation, and then relying on settings available in DOPs nodes to get the long / stretchy tendrils. In any event, I’m certainly open to suggestions even if they’re completely different approaches to what I’ve described above. Thanks ahead of time to anyone responding! Nik pF CancerCell_FLIPFluidFromObject_v021.hipnc
  25. What is Houdini equivalent of disconnecting edges similar to Maya's detach component command (or blender's rip command). I used Edgecusp node but it doesn't get me the full result. See the attached picture of Edgecusp vs Maya's detach.
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