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Found 30 results

  1. dustwave problem

    I hope to create dustwave like this image. I'm in the middle of making it. Would you mind helping me? dustwave_wip_v01.hiplc
  2. Hi all! There's 1 week left to register for my Mastering Destruction 8-week class on CGMA! In supplemental videos and live sessions we'll be focusing on some of the awesome new features in Houdini 18, and exploring anything else you might be interested in, such as vehicle destruction. For those that haven't seen me post before, I'm an FX Lead at DNEG, and previously worked at ILM / Blue Sky / Tippett. Destruction is my specialty, with some highlights including Pacific Rim 2, Transformers, Jurassic World, and Marvel projects. I've also done presentations for SideFX at FMX/SIGGRAPH/etc, which are available on their Vimeo page. If you have any questions, feel free to ask or drop me a message! https://www.cgmasteracademy.com/courses/25-mastering-destruction-in-houdini https://vimeo.com/keithkamholz/cgma-destruction
  3. How to approach Flour in Houdini

    Greetings, I'm trying to achieve something like this https://www.shutterstock.com/video/clip-24306053-slow-motion-falling-eggs-into-flour-stock Forget about the eggs, generally I'd like to simulate a collision on a dust / powder like flour. First of all, how should I approach this effect? Particles or Grains? And if I choose Grains, should I use the normal Grain Solver or the Vellum one? On the picture below I have a setup that I used the standard Grain Solver, and 2 RBD object, on is the static plate, and the other one is the moving ball. I encounter many problems like the ball bouncing really hard on the flour, instead of just landing, and if I change the RBD Solver priority in the Merge, then the Grain collide merely good with the ball but they pass through the plate. So basically the Solver can't read both the RBD objects correctly. Also, after all, I need to use a custom Force to "Explode" some Grains in the air, because it seems impossible to happen with just the ball collision. Thank you in Advance !!
  4. Hello! So I have been Having lots of problems to setup the pyro sim on a large scale. Somehow I cant manage to understand the propper settings. I would love a result similar to this: The size of the my sim is 1:10th of the real size because as I make the sim bigger the problems also get bigger. I guess it has something to do with the source density and the smoke object Take a look on how awful it looks down below (I am quite new to this soft) I am leaving the whole proyect full of notes so you have an easy time helping me Thanks a lot and I am looking forward to learning. cya NaveVolando.rar
  5. Hello, I'm a student working on a team project. I need help! Could anyone figure out why the dust is generating before the horse is touching the ground? For example, it looks like it's generating in front of the horse. But I just want trails of dust behind the horse everytime it steps on the ground. I'll get the animation of the horse sometime soon from another student, but for now, I have a simple animation of the horse moving along Z-Axis. I've attached my file so it's easier. Please help! Thank you. dust_fx_v008.hipnc
  6. Mist-Ground Dust Effect

    Hi guys, what would be the best approach to recreate something similar to this mist-ground dust effect for the mid-ground? Thanks Isy
  7. Heyo, I'm starting on a new project and I ran into a problem that I can't play my way out of to figure it out. I'm looking for an effect like this Sand tires throw a bunch of sand and trying to get that result has been a challenge. Any ideas? I have been using a simple setup of particles emitted from a ground plane after impact with the ground but that won't give me the repeating trails all the way back. Instead it's a rather sad thing of a few particles flying off incorrectly Any help would be great, thanks.
  8. Hello everybody I come to you today to ask for a little help. I would like to find a fairly "simple" "beginner" technique to get some smoke when an object (a foot) touches my groundplane. I have a step sequence in alembic. But I miss the little idea. I tested with rigid and debris sources but nothing conclusive for the moment. thank you in advance for your help
  9. Hello everyone, I have a question, how to make a dust simulation from the crowd? I have collected an approximate variant, but I think there is a more correct way how to make this simulation more realistic. I made an emitter of particles from each soldier, and then applied volumerasterizeparticles. Test particle fluid source Crowd_test If anyone can help, I will be grateful. Thank you for attention!
  10. Hi, I am doing a personal project of iceberg destruction, and i want one of the fractured piece to behave differently like when it lands on the ground. i want them to be very small pieces like a dust. so i thought the best approach for that effect would be, make them to "grain". therefore, to get that effect, what i did was, i blast one of the piece from the simulation ,which i want them to be behave like a dust, on hitting the ground. unfortunately, i have noticed that ,since its a fractured and already has a simulation. when i apply grain source , the grain source point moves in every frame as it goes to the ground. I know point deform would fix something like that. but since i am newbie, i dont know how to fix this. I have attached a test. please have a look. if you dont understand what i said. Grain.hipnc
  11. I'm looking for a tutorial. I want to make something like dust smoke that spreads from all directions after the bomb explodes. Thank you for your help. Dear.
  12. Dust/Smoke Shockwave

    Hi guys, This is something I've been looking around at for awhile, checking different solutions and testing them out. But I just wanted to check what you guys find to be the most effective way to create a shockwave from f.e. an explosion. Any and all ways are welcome, I'd just like to know what you find works best for you. Cheers, Jack
  13. Houdini Pyro - Dust Storm

    Hi guys! I recently work on this test of Pyro dust . i will try to do more soon. I used Arnold to render and pyroclastic method for the sim with scattered points for divergence. Render time about 15 hours on my machine... Can i have our feedback and advices. Cheers https://vimeo.com/206276685
  14. Hello to everyone! I'm fairly new to Houdini and to vfx at all and been struggling trying to do this by trial and error and searching in forums. Even though I have learned a lot by doing that, I think it's better to ask for someones help. I want to create some dust clouds (like a small dust storm) for a shot. Because the area that I'm trying to fill is big and my resources are limited, I thought it would be a good choice trying to achieve the effect using SOPs instead of a smoke simulation in DOPs. The setup related to this part of the effect is basically some boxes each modified by a Volume VOP to add some noise and animation by frame. I read that Billowy Smoke Shader can help you to get a more fluffy look at rendering. My first frame was great, but the next weren't as good because of the noise. The shader is supposed to use the rest field of your simulation to position it, but I'm in SOPs. Another user asked for something like this in the forum: He says: "just create a vector rest volume in the beginning that has the world coordinate of each voxel as its value. Be careful to do all the same advection operations on your rest volume as you do on your density volume". But I think a main difference is that they are working with shaped geometry and my whole dust storm is, well... a box. Until now my tests have been: 1.- Expose rest attribute with a wrangler before my volume vop and create a surface attribute named rest. 2.- Create it after the volume vop. 3.- Create the noisy volume, then convert it back to polygons, add a rest field and then again convert it to fog. And nothing worked. My questions are: 1.- Is there are way to use a rest field from SOP to shape noise in the billowy shader? If yes, what is it and how do you work it. 2-. Or would it be better to create a noisy volume, convert back to geometry, add pyoclastic noise and convert it back to volume? Thank you in advance. I would really appreciate your comments.
  15. Houdini FX Reel 2016

    All of my latest work from projects including X-Men Apocalypse, Game of Thrones Season 6, and more. FX Reel 2016
  16. FINAL HARVEST

    Hello guys, I would like to share our 8 week masters project with you. It was done at Bournemouth University as part of the Digital Effects course by 3 students. I hope you like it! Cheers!
  17. Hi, rookie question: Why is it that when I import an Alembic camera from Maya into Houdini, it makes the whole scene insanely large. The camera moves a massive distance and as such I am forced to create massive grids and simulations with attributes set to numbers in the thousands. This is really hard to work with and creates clipping problems if you move close to the geometry, which i cant seem to fix even in display options. I'll attach the scene file and the ABC camera file (not sure how to attach them in the same file). So import the ABC file yourselves Basically the camera is leading a car straight along a road and there is going to be a dust storm in the background and also dust trailing behind the car. If you convert the tube in the scene to Billowy Smoke, it comes up with a warning saying 'Object level scales detected. A new object has been created to convert to world space'. Which I suppose is a way of saying 'Hey, your scene is super massive and could be fixed somehow'. I'd like to know if there is some way to import the same camera, but have the scene scaled to a suitable size so i dont have to put huge numbers in while experimenting with smoke, particles etc. Thanks Scene01.hipnc Camera Alembic.abc
  18. Asteroid Dust Trails

    Hey guys, This is my first post here! I'm new to Houdini and learning a lot from the shelf tools, available tutorials, forum posts and documentation. Now I'd like to create dust trails from shattered asteroid pieces. Here is what my trail setup looks like so far (.hip attached): I'm almost happy but a few things should be improved/fixed: The "Source Volume" node doesn't know the torus' velocity when drawing into the density field, which results in stepping. I'd like the smoke to interact with (flow around) the geometry. Can I draw it into an obstacle and/or velocity field? Merging the solvers didn't help yet. Maybe I could modify the air pressure/resistance aroudn the asteroid and ignore it for the smoke that's far enough away? With the "Gas Resize Fluid Dynamic" node active, there's some strange aliasing happening towards the end. Any tips on how to achieve/fix those issues would be great! I've been searching the forums and several tutorials already. But as today most of them are not written text but videos instead, it's hard or at least very time-consuming to find specific information. I'll keep playing with nodes and parameters, watching volume wrangling tutorials and also try preparing an upres setup. Thanks! Hebi 2016-08-04_asteroid_trail_v002.hip
  19. Smoke Emissions Scale Over Time

    Hi All, 1.I am Emtting Pyro Smoke from Rbd Object with different size. But my Smoke is coming with same size.how do i control size of emt Smoke. 2. If i need Smoke emt from frame 0 to 10. Lets say on frame 0 desity will be 0 and on frame 10 it will be 2. Thanks
  20. Helicopter dust effect method

    Hi forum I'm trying to achieve a helicopter dust raise and this is what I reached for curly dust layer more or less and I want to add another layer of dust simulation for horizontal movement after that. I used an arena shaped geometry to create velocity volume and advect some particle with this velocity field. and at last I simulate this volume from particles that has this arena shape already without extra advection, just some turbulence and disturbance. But as you see this so smooth in the base and has more noise at the ends and this is annoying. So after reading some related threads in forum, I start to think if I'm wrong. maybe I should advect particles with volume instead. actually I want to know best approaches for creating similar effect. Thanks in advance
  21. Hey everyone, I'd like to try and create a tire burnout effect where the smoke is emitted from the tire/ground contact point. The smoke then shoots out from the back of the tire based on the velocity of the rotating tire as the car goes in circles. I'm still a beginner with houdini, so I have an idea of what I need to do (I think) but I'm not sure how to go about reaching my goal. Right now I'm thinking that I need to get a contact zone for the tire's point of contact with the ground. Then I need to calculate the velocity of the spinning tire and send that to the emitting particles (which are emitting from the tire). The particles should then emit only when they're in the contact zone (so they mostly shoot out in the rear direction). Then I make it so only the emitted particles drive a pyro sim. I've attached a hip of where I'm at so far. I have the velocity from tire figured out, I just need to figure out how to get a contact zone and only emit particles when the surface of the tire is in the contact zone. Here are a few hip files that I've found during my initial research. I feel like the examples in this link don't give the best results for what I'm going for though, so I'd like to do this another way: http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=17139&view=previous&sid=b2857b8fc9d609b04ecb1cc6610e1c18 I'd like my effect to be similar to this example: https://www.youtube.com/watch?v=QcT3xSjaPv0 Here's a reference video for the final effect I'd like to achieve: https://www.youtube.com/watch?v=Pj8zdgHMtbU. Thank you! tire_burnout_odforum.hipnc
  22. Dust questions

    Hey, Im a vfx student right now and I've been trying to learn houdini on my own for the past little while. For a class project I need to be able to have dust kick up from the ground for a vehicle landing, a rotor wash type effect. I was hoping smoeone here would be able to give me ideas on how I can at least get started.
  23. Dust Smoke Techniques

    Hey All! I have been surfing the forums and just checking out some of the different techniques. I am curious to see some of the latest techniques we have for handling plumy dust. I still use the LoRes to PopAdvect to HiRes method for most of my problems but I am curious what other people have come up with! Can't wait to hear back!
  24. VFX Short film 2014

    Here is my final short film for Sheridan's 10 month Visual Effects course. Everything from pitch, storyboards, previsualization, shooting plates, editing and vfx is done entirely by myself. I had the support and feedback of a great group of teachers and classmates. Breakdown to come soon. All shots you see have VFX elements, how many can you spot? Programs Used: - Nuke 8.0v3 - Houdini 13 - Maya 2014 - PF Track - Mari 2.5v2 - Adobe Creative Suite Timeline Included: - September - October (Pitch) - October-November (storyboards) -November-December (previsualization) - January-February (production shoots for whole class) - February-March (editing) - March-June 20th (VFX) All visual elements were created entirely by myself Music: "Happy End" by Distemper **Feel Free to inquire regarding any questions or critiques as I am still fine tweaking some details over the next few weeks. ** https://vimeo.com/98883004
  25. Dear Houdini Community, I've been trying to figure parameters of curl noise for my parameters and I've been stuck for quite a while... My object moves fast from left to right and emits particles behind. I used curl noise to create curls, but I can't make the curls bigger. They should quickly fly out of the object and then curl and disperse in the air. I am attaching my sketch which is easier to understand. Any hint appreciated. Have a nice weekend :} ~ashe bigger curl noise.tar.gz
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