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Found 31 results

  1. Skin & Sort challenge/issue

    Hi folks, I face a challenge to setup my underlying curves to skin my in the correct way. The biggest issue I have is to sort all the points in the correct order - I think to do this via a helper curve should do the trick, but I can't find the solution So any help would be appreciated!!! The end result should look like a stadium roof... Thanks so much! Cheers Dominik
  2. The Artist's Guide to Technical Direction in Houdini - Volume 0: Hscript Back in 2005 I got my start as an intern at Side Effects Software Inc. Over the past decade of using Houdini, I've worked around the world in the film (Starz Animation, Dr. D, Digital Domain) and games (The Coalition, BioWare, EA Motive) industries. In this time, I've had the pleasure of working with many artists who were new to Houdini and sharing some of the insight I've gained. While most people are pretty excited to get their hands on the flashier parts of the software such as FLIP and Pyro, I think that Houdini's greatest strength comes from it's sheer flexibility. And that flexibility is something that only opens up the deeper you delve into how things work. What I like most about Houdini is discovering new ways of doing things. One complaint I've heard time and again, is that after following a tutorial, new artists are often left with something that looks pretty but with little understanding of how anything actually works. I'm always hearing complaints about how steep the learning curve is with Houdini. I'm seeking to help fix that with 7 hours of new training material that focus specifically on HScript scripting in Houdini. This course I've designed for artists who are either lacking a technical background, or who may have experience in other packages but want to understand Houdini better. We'll avoid creating pretty things in this series. Instead, I want to keep a sharp focus on how things work. That means learning about procedural networks, variables and attributes, functions, and for-each loops. Most importantly, I address how to self-learn Houdini. My hope is that this course will build a solid foundation for you to get the most of any future training you pursue and help you to understand how to get the most out of your Houdini networks. If you'd like to become more adept at scripting in Houdini, please consider signing up for my course: https://mixtrn.com/course/the-artists-guide-to-technical-direction-in-houdini-hscript/ Have a Great Day!
  3. Hello guys, I'm quite new here and recently joined the odforce forum. I don't know if there is any other category where I can get feedbacks hence posting here! Just when I was searching for cake recipes, I fell for the "Strawberry Raindrop Cake" and decided I should make one for myself! Link to the reference video: at 0:09 timestamp well, A "Raspberry Raindrop Cake" in Houdini ;-) Here is my progress so far, any feedback is appreciated! Thank you!
  4. UV Flatten node bugged?

    Hey guys. I need someone to take a look at my scene and tell me why it keeps crashing using the UV Flatten node. I have in the file a working example, and then a non-working one. there is only a few operations in difference between the to uv flatten setups, however one of them is not working. Any help, or confirmation that this is in fact a bug and not just me overlooking something, is appreciated. Cheers Hershey_mod_v0010_workinguvs_jra_.hiplc
  5. I just wanted to get peoples impressions on whether the modelling functionality is beginning to compete with C4D's modelling functionalilty.
  6. Hi guys, I'm currently using the Bound node as part of modelling project and am looking to store the Y rotation created by the "Oriented Bounding Box" option. Is there a way to store these values or can you create the same rotation a different way after creating the bounding box? Any advice would be greatly appreciated! Cheers! -Henry
  7. Hello fellow odforce-people, at the moment I'm working on my bachelor thesis which I'm writing about Dynamic Simulations for Film in Houdini. In order to demonstrate these effects, I'm producing two shots of a short film that I've wanted to do for a long time. And for the environment of this short film I decided to do some procedural modelling with Houdini. And since the houdini community is so extremely generous, I decided to take part myself and share my entire project file. It's slightly messy, but I hope it's useful. * I started out in Cinema 4D where I did some basic cloner-modelling to get all the basic shapes right. * Then I moved into Houdini, converted everything to an SDF and cut out dynamically generated holes. (Scatted loads of spheres into a vdb that I generated from the sdf, displaced the spheres, made an sdf from it and "difference-d" it away from the main mesh.) * Having converted the object back to polygons, I ran the mesh through Instantmeshes to get a clean quad-mesh. (Love this program almost as much as Houdini.) * For uv-mapping and memory-efficient exporting I got rid of all the faces that were not visible from the inside. (more than half) (I wrote a little script that sends rays from every point of the mesh to the 'god-points' in the center (because godrays, haha... ha...) and when any of these rays hit, it's marked as visible (green). Then I get rid of all the invisble points (red). * I unwrapped the mesh using Auto-Unwrap from the game-dev-toolkit and exported it (as well as the high-res-version from before) to Substance Painter where I baked all the maps (normals, AO, etc.) from the hi-res mesh to the low-res mesh. * In painter I just smashed a couple of smart material on there that I found on Substance Share, scaled up the UV-Tiling (because huge mesh) and was pretty much done with texturing. The render is a screenshot from painter's integration of I-Ray. (When I get everything together in Cinema and render with Octane, I'm gonna step the lighting up a notch of course. ) Here's a couple of pics: And attached you'll find the project file as well as the base-obj I started out with from Cinema (And one remesh to work with in case you don't have Instant-Mesh set up). To make viewing easier, I turned on a switch that sclices out only a small part of the arena for editing and increased the voxel-size so that loading only takes 15 seconds instead of half an hour. Cheers, Martin ARENAWRANGLE_TOODFORCE.zip
  8. Hey guys, I've put this in the 'general' forum, rather than modelling or Fx as I wasn't quite sure which category this goes to.... I have a 'tower' model and I want to fracture it. If I don't turn on 'Create Inside Surface', the fracture occurs as expected, but is 'wafer-thin'. If I check it on, I get the thickenss, but very unexpected results as shown in the screenshots. Any ideas how to solve this?
  9. Prep geo for destruction

    Hey guys, I've a question about models. I was reading this article about destruction simulation. The artist, Paweł Rutkowski, mentions something about model prep: Can anyone give advice to what to look for/do when prepping a model for destruction? I'm not talking about naming attributes etc. But normals, etc. Any gotchas I can avoid? Any tutorials out there that would better inform me? Thanks, guys! And a big thanks to all who've answered my previous, probably simple questions. I've learnt tonnes already!! I hope one day I'll be in the position to 'pay it forward' Addy
  10. Brick tunnel

    Hey guys, I'm relatively new to the awesomeness of Houdini. I'm into destruction as an area of the effects field more than I'm into fluids etc. I've a little school/hobby project I'd like to develop, but I'd like some pointers before I begin!! I want to build a brick tunnel which will collapse. (the modelling shouldn't be difficult ). But I'm wondering more about the destruction side. Should I make a basic poly tube, halve it etc. Or should I make something that's procedurally created with bricks? I'm thinking of doing some kind of FEM sim, rather that voronoi, so I wondered how it's modelled would effect how it's simmed? I'm looking to build something like this: I was thinking of applying a similar technique to this discussion: Or is that just wasting time and resources and it's better off to simply texture it? I'd love some ideas before I embark on it!! Thanks Addy
  11. copy to points rotation

    Hi, I'm currently trying to assemble a chain, driven by a guide curve. Using the copy to points node, I'm trying to figure out how to rotate every other copy by 90 degrees. I can only seem to control the orientation using N, which is set to the tangent of the guide curve. I'm sure I'm able to do this using the orient attribute, but I'm not completely sure how to. Any help would be gratefully received. Thanks odforce_test_001.hip
  12. (Novice) Align a selection to point

    Very simple operation required: I need to align all points to the vertical axis occupied by a single point. (align points to the vertical axis of the point highlighted) There has to be a simple method for this. Thanks in advance
  13. Following a modelling tutorial and the tutor sets up their image to model from using the Image Network. I cannot find this node anywhere. How do I set this up? Also, if there is a simple way to setup a reference image to model from please let me know, there are very limited tutorials as far as I can see. Many thanks in advance.
  14. Hi Everyone, I'm looking for some advice to make an animation of a glass of cola soft drink with ice in it. I've been using Houdini only for one year or so, so still fairly new to it If you can point me to how get started, which approach would be most logical or a tutorial that would be appreciated. Here is a reference attached
  15. Frame VR is a rapidly growing, Australian based, virtual reality production company specializing in out-of-home and training virtual reality projects. We are currently seeking a Houdini artist for a quick turn around job rebuilding a polygon reference model of a boat by breaking down it into individual parts and then rebuilding them as Houdini Digital Assets for use in Unity3D via the Houdini Engine plugin. The work can be performed remotely and there is a negotiable budget based on experience. Interested artists should send a link to a showreel of previous work to info@framevr.co
  16. Square sawtooth on circular base

    Hi everyone, I need a help in modelling a shape for a project. I am trying to model square sawtooth kind of cube over a circular base. It needs to follow the base circular profile with alternate height. What is the best way to do it? I am looking to do it in procedural way but not getting there. I have attached a roughly drawn reference image. Any pointers will be helpful. Thank you for your time.
  17. Hi everyone, I am modelling a lid of jar for a project and it needs a twisted cut in lid. I am using cookie sop. Its cutting neighboring primitives too. Is their an alternative to do it or fix it? I have attached a hip file in case any one wants to have a look at it. Thanks in advance. cookie_error.hip
  18. Robot

    Hi guys, I've worked a little with this robot. I'm kind of a noobie within the field of 3D. I think I might have done a few mistakes. Eg. I used cookies instead of polysplit/knife-tool when I modelled the mouth. Hopefully I'll learn from that in future. Please feel free to tell me what You think about it :-) I have used a refference from 3D World magazine.
  19. Rebuild mesh with VDB

    Hi I want to create a good subnetwork that rebuilds mesh with vdb. The problem is that my nodes gradually destroy mesh details. All notes in attached scene. Thanx vdb_remesh.hipnc
  20. Sweep multiple prims on multiple curves

    I have a bunch of hexoganol primitives. Each hexagon has a spine(curve) that I want to sweep the hexagon along. Each spine shares the same primnum as its associated hexagon. What is the best way to do this? What I've been playing with is a ForEach Loop that sweeps each hexprim along each spine.... but my results are confusing and bad. hexRox2.hip
  21. Hi all, I made a quick "cover surface with single-square lego pieces" for a character at work and I wanted to develop it a bit more now that I have some downtime. The idea is to have any surface, static or animated covered in blocks, with some height variation here and there. Initially I was dealing with the height in a rather manual fashion, reading in a texture height map and manually selecting grey value ranges with group nodes to separate out each level before displacing them along a normal. These points then all got merged back together before being plugged into my final Copy node.. The results aren't bad, albeit a bit slow (see my screenshot), but I'd like to be able to choose how many levels I want with a slider & have this all filter through nicely. Here's what I have figured out - load a height map texture in a vop, with a bit of fit range, divisions and value flooring assign each point a "height level" attribute. Ascertain max height level value (I just promoted my point attr to a detail attr using a max filter, or i suppose i could just take my input value!). Now .. what I'm a bit stuck with is how to do what I was doing before - selecting all the points within certain ranges, displacing them upward...selecting next lot, displacing them up... and then finally merging my points back into one node before Copying! I'm sure its because I'm not thinking in a Houdini way still (Maya user here). What are my options for looping through? Or is my approach not the most efficient? I started looking at the "add point" node in Vops, is this a good road to take? The For loop structure doesn't work how I imagined (for i=0; i<max height level; i++ <-being able to do this would be amazing...I know it's possible......somehow..) Oh - and thanks in advance for any pointers!
  22. Hi, I've started a thread in rendering about a shadow pb : http://forums.odforce.net/topic/25244-wrong-shadow/ seems like the pb is in the model, so I'm looking for modelling help here. 1- what is wrong with how I made the wall ? cookied curves + ployextrude. Is there a better way ? A better way to combine curves maybe ? 2- I need the opposite wall, with the copy SOP I made a reflected copy (scale -1 on 2 axis) The resulting geo is all normals inside, and still have the shadow problem. Renders as weird as the original wall. 3- What would be the best way to control/flip my normals? I saw somewhere a simple VEX line in a pointwrangle or attribwrangler, but I can figure out where I saw that. The reverse node doesn't seem to reflect the change in the viewport (but affect the render). Thanks for your time, on any or all points. <- could write that in vex? here is the hip file: shadow-pb.hipnc
  23. Hello Community, ( I hope that's the right thread for this type of questions.) in the course of my second year studies at the Animationsinstitut in Germany I'm going to shoot a short film showing the metamorphose of a man, whose skin turns into printing press letters. Concept and references: My skill set mainly covers Compositing and the basics of Visual Effects. So I thought to use a project with real deadlines to boost my 3D skills. For some time now I gradually familiarize myself with Houdini. Feels like doing some kind of 3D Compositing. Like it so far. Now I definitively could need some help for the technical realization of the concept. Tutorials on the web are great, but don't cover this particular Effect. As can be seen from the images I want to randomly scatter letters across a surface. So far I experimented with displacement maps but I'm not sure if that's the right approach. I was told SOPs are the way to go. Is it possible to randomly instancing geometry so they move close together without overlapping? And if that was the case, would there be a procedural approach to generate the different letters/symbols? Regarding animation: I just want the transition to be animated. So we move from skin (live action) to roughly brushed plumb to the letters. Imagine the brushed plumb gets grooved and reveals the letters underneath. Any ideas and comments are very appreciated. (By the way, I put in my head to finish this project somehow by the end of July.) Thank you very much for your attention and interest. Regards, dk
  24. Fibonacci Zoetrope

    plzz help how to create this type of effect ... video link: http://vimeo.com/116582567
  25. aloe polyphylla

    How to create Aloe polyphylla plant..
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