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Found 16 results

  1. Deformed wave WIP

    Hi, Here is my WIP for a deformed wave. I need some feedback on this. The ocean surface is jittering quite a bit, what's causing this problem and how should i go about fixing? Here's the video:
  2. Integrating Deformer to Hero Wave

    Hello! I've posted questions for help developing my wave deformer tool before, and with the release of Houdini 16 a lot of possibilities have opened up! I was wondering if anyone had some ideas on how to integrate deformed geometry in to the new hero wave system? My wave deformer tool deforms a grid in to a wave shape, but causes the foam details to stretch across it unnaturally. I'd love to be able to draw from the nice foam created by the hero waves in H16. The reason I'm not just using the hero waves is because I am using it for a large tidal wave, and raising a curve in the hero waves to make it a tall wave results in a very unrealistic wave shape. Here's a video of my deformer that shows what I'm describing: Any advice is much appreciated!
  3. Custom Wave to Ocean

    Hi everyone, Im trying to add custom big wave to Ocean and Dop network. For polygons everything works fine, but for other fields like surface and vel its now working and of course dop isnt working well, i dont know how to add it or how to deform other field like polygons. Here is the scene: custom_big_wave01.hip
  4. Running a fluid sim over geometry

    Hello! I was wondering if anyone knows a way to run a flip simulation over specific geometry. The closest visual reference I can think of would be the workflow from Moana. Would you have to turn the geometry in to a fluid object, or is there some way to have the simulation run on top of the geometry?
  5. Hello! I am making a geometry deformer to simulate large waves for a student film (we don't have the resources or time to sim out a large tidal wave), and I'm having difficulties with the shader. I'm starting with the default ocean shader to get a feel for it, but the displacement and creation of the white caps and foam are being stretched and look wrong due to the deformer. My thought process is, is there some way to include my deformer in the displacement process so it is factored in when white caps/foam are made? If not, is there some other way to effectively use the ocean shader on a deformed grid (without losing the white caps/foam)? I'm really hoping to be able to have the white caps/foam on the crest of the large wave the same way it appears on the small waves created by the ocean displacement. My files are attached, I apologize for the messy VEX in the hda, I've been hopping between VOPs and VEX in its development. Also note: the displacement maps are set to .picnc instead of .pic because I am working in Houdini apprentice currently. Thank you! displacementworkaround_v01.zip
  6. Hi all, I've been trying to figure out how to create a linear ripple effect (i.e. rather than have a single point as the source, I'd like to source it from a line/selected edge/group of points, so that it travels across a surface like a wave.) Now, of course, at a basic level the 'waveform' SOP node performs this exact operation - *However* it can only generate a single wave at a time, and it lacks the signature 'decay' of the ripple over time. I had the idea of using the wave operation in CHOPS using a sine wave with decay on it, however any changes to the amplitude are applied across the whole waveform, rather than 'at birth'. So it doesn't create a dying wave, it just scales down the whole waveform. (see image). Any ideas on how to achieve this? (just as an FYI, eventually I'd like to control the decay length with an animatable paramater & creation/scale of the ripple from CHOPS with a trigger.) It seems like it should be super easy - Maybe I'm just having a bit of a mental block! :/ Any mind jogging greatly appreciated!
  7. Hello guys! I'm some kind of a newbie to Houdini but not really in the 3D field. I would like to have some feedback and your opinion on my ocean shader. It's a simple scene which will be animated with a camera traveling toward the horizon, I use it to learn more about houdini ocean shader. Here's my shot : It's been few days I'm struggling with this one, so any feedback is more than welcome! Thank you guys, have a nice day.
  8. Rolling Waves

    Hi, I´m new to houdini, coming from the barren lands of the deceased Softimage. Really excited with the power behind H. Thanks to all of you that pay attention to questions that might seem silly and noobish. Im trying to generate rolling waves with flip fluids and custom velocities, ive been looking around and have followed several examples. As an exercise im trying to replicate something like shown in this video. Im sure its really simple, but so far i haven´t been able to replicate the pull and release force that the plane is applying to the fluid. (I know how to apply a custom velocity through a volume, but the attempts that I get are not as organic as shown in the video). Any pointers on how is the velocity being generated from the grid? thanks!
  9. Hi all. I need a help. Is there anyway to collide/dynamically float an object on ocean fx wave surface ? even if the object doesn't produce foam it will work.. I just need the dynamic motion of wave surface on object. I don't want to do an actual flip simulation.
  10. Tidal Wave

    Hi I want to do a Tidal wave braking. It has to be a large wave with a LOT of foam and with a deadly curl. I made this rig so far for the surface with cloth. https://vimeo.com/62003308 Do you think it is better to put this surface animation inside an Ocean Tank 12.5 or it is better to do the traditional way of emitting flip fluids towards this surface and work on foam with velocity dependant?
  11. Wave

    Hi everyone. I have done this personal project to learn FLIP and ocean surface filtered by point velocity from flip. If you have any comments please feel free.
  12. Wavetank collision issues

    Hi there! I've been stuck on this issue for a few days now, and it's really doing my head in. It's seems fairly straightforward, but I just can't get i right. Basically the issue is as follows : Ive got a wavetank (scale - 150, 70, 150) and I've got an oil rig model that I want to function as a static collision object. My problem is that I'm not pleased with the amount of splashes and turbulence that this collision creates so I want to find a way to increase the turbulence/velocity that the collide object generates. I've already tried several methods like using a fluidsource in sops and adding curlnoise from there. It kinda works, but hard to control, especially since my scene scale is so large. Also Im converting to vdb and sourcing the proxy volume in the /autodopnetwork/staticobject. Does anyone have any immediate thoughts on how I could resove this? Help would be greatly appreciated Thanks /Erik
  13. Try to understand Ocean setup

    I'm playing with ocean and I have some question about the nodes and the foam creation. I hope someone can help me to understand that. first of all, I'm wondering what is the use of the Rest volumes that you can add in the ocean evaluate node, these are for simulation purpose only. There is not much info in the help about these volumes? and there is also under the foam solver tab "rest foam". What is it for ?. For the rest foam, It create problem at render time when I check the box, look like the grid is not displaced correctly? I'm also trying to mix or merge 2 spectrums together, because I got a hard time to get the look I want to achieve with big wave and smaller wave on top. At the moment I use an ocean evaluate with a spectrum creating big wave and check the deform box and I use this geometry to plug in another ocean evaluate with a spectrum creating smaller waves, is it the right way to do this or merging the 3 volumes giving by the spectrum node is better because you will have the foam solver computed correctly ? ( I try adding them in volume vop, but without success). With my setup with 2 evaluate node, I got a problem with animation of foam when I render the scene. The deformation of the noise in the Y direction is too quick and I don't know why? I hope someone have time to take a look at my scene, so I can get a better understanding of the oceanFX. oceanFX_v010.hipnc Thanks Doum
  14. Create a large scale wave

    Hi I'm working on personal project that have a shot with large wave and having trouble with it. I'm trying to make those kind a wave. and here is reference video. I have a basic set up for ocean from shelf tool but it's hard to figure out make that kind of huge wave. so How can I make that kind wave with ocean tool?? it would be grateful for any answer. Thank you
  15. Create a large scale wave

    Hi I'm working on personal project that have a shot with large wave and having trouble with it. I'm trying to make those kind a wave. and here is reference video. I have a basic set up for ocean from shelf tool but it's hard to figure out make that kind of huge wave. so How can I make that kind wave with ocean tool?? it would be grateful for any answer. Thank you
  16. OceanFx continous wave motion

    hey all, I use the shelf tool to create a wave tank (houdini 12.5) and I notice that the wave motion velocity is only acting at the first frame. What can I do if I would like to keep this velocity affecting the flip fluid until a desire frame? I saw a vel volume under the initial watertank geo and thought it could be use with a field force in dop, but when I try to use a sop vector field, it tell me that it's not a volume? Any better idea, I'm still new to houdini so maybe there is others ways that could be more effective. Thanks Doum
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