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Found 6 results

  1. The rain simulation with new popnet

    I want to have a result of showing that rain is coming down on the umbrella with new popnet work,who can help me?
  2. Hi I want to create rain dripping on large glass windows surface and than sliding from it. Something like this thank in advance
  3. Hi all, been learning Houdini since mid Feb and thought it time I better share something back as I've found the forum immensely useful ;-) RnD of Houdini particles flowing over a hard surface model to simulate a condensation/rain/rivulet/droplet effect. This is part of a larger RnD project I'll render & upload shortly (this is one section of a larger flying object - a cloud seeding drone... just an excuse to learn a load of Houdini). Partly inspired by Mark Theriault's Sucker Punch Intro Breakdown using Pflow (vimeo.com/39161208) and having just starting making the switch for fx from Maya to Houdini, this was one of those "I wonder if I can do that now in Houdini" things that I just had to try. I remember years ago doing something similar in Maya and it taking a heck of a lot longer! This effect took about a week of tweaking. The sim is basically just a popnet which relies on an SDF volume (isoOffset) for surface interaction and uses a voppop (VEX) to control the "drip off threshold". Once I had a working method, I then used 3 duplicate variations for the different rivulets (trail SOP) and finally added a random scatter SOP for some extra motionless droplets. As the final shot won't be so closeup, I have to option of increasing/decreasing the uniform sampling of the SDF to fit. When all this is done, I'll hopefully be taking this RnD further with a rain-on-a-window-pane high-detail/realism sim. Thanks to SpencerL for advice on the initial VEX methodology.
  4. Condensation On Surface

    Hi everyone, I'm brand new to Houdini really I've done some extremely basic RBD, FLIP, Pyro, and cloth sims with a very finite amount of POPs and FEM and I'm looking to develop a little system that will form droplets on the surface as a mesh, I would like the droplets to differ in size and for some to run down the surface and leave a trail as you would expect in real life and for some droplets to stay in the same position throughout the shot. I've checked out some of the other topics on this and they seem incredibly complex to me so if anyone could simplify I would greatly appreciate it! I've attached a simple scene of a can model (can model link; http://tf3dm.com/3d-model/coca-cola-can-23142.html) I am aiming to achieve the condensation effect on this model! Any help is appreciated, Thanks in advance Condensation_Can.hipnc
  5. Houdini 15 Rain Effect

    Hello, First post and relatively new to Houdini. Im looking to produce a rain effect. I figure the best way is to use a particle emitter from a grid. Basically for the shot I am doing, there is a car driving straight on a road and I need some rain to hit the front of the car and the windscreen. The rain needs to collide with the car and I am also looking to produce the streaking effect as the rain slides along the car. My main question is how to emit less particles, randomly across the object its emitting from. Also, how do you make the particles tiny (raindrop size) rather than coming down in one giant blob. I've been looking for some tutorials for a few days now and I have found nothing. Any help appreciated, thankyou Charlie
  6. Houdini rain

    Hey guys, trying to achieve some basic rain splashes/ripples. how would I go about controlling the location of the dynamic ripple with hitpos data
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