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Found 17 results

  1. Hello I am doing a unlimited ocean in Houdini. But for some reason I dont know how can I fix the issue where at the horizon there aren't any waves attached... (see screenshot). What is causing this? And how to fix this?
  2. Hello I have an animated Object and when I apply a hero rdb object then the animation is gone and my object is just falling down into the water... But I want it to float on the surface after it has touched down. How can I achive that? Thanks for advance
  3. Hello I am working on a Ocean scene with a flip tank integration. Now I have rendered out the ocean with the flip tank simulation. And now I want to render the white water. But a few frames after the white water simulation started rendering, the rendering process just keeps crashing, and I dont know how to fix it. Or I do something wrong? Should I cache out the white water first and then hit render or how? And how I can create render passes of the white water, so I just can overlay the different render layers in a compositing software on each other and I dont need to mask it out somehow... Help would be much appreciated!! also, I have used the pop advect by volumes node and the bounding box is cutting away some of the white water, how can I fix this too???? Thanks!
  4. Hello As I was going through some tweaking of my Ocean scene, I have discovered a problem. Why my flip fluid area has a different color then my extended ocean?? I have done a few times ago the same things but sometime this problem had appeared! :/ would be nice if someone knows the answer how to tackle this!? thanks!
  5. Break up wave pattern in the Ocean

    Hello all, I am working on a Ocean scene right now, I have created a unfinite Ocean but now I have a problem. So, there is these strange pattern in the ocean (like in the picture). And now my question: How can I get rid of these patterns? what i have tried so far: 1.) I have try to mix two Ocean spectrums, it hasn't worked... 2.) I have try to turn on the make in the mask tab in the ocean spectrum, i hasnt worked too... is there a straight forward option to how to this??
  6. Hello guys, Well i am working on an ocean scene having foam particles over it, I need to render the scene but everytime i put the scene on render it starts using 100% CPU Usage and crashes. Plz tell me how to down sample my render i have 200 frames and not one is getting render. All the render settings are on default and rendering via physically based rendering. PC Configuration- I7 6700 PROCESSOR AMD 2 GB RADEON R7 DDR5 GRAPHIC CARD 16 GB RAM
  7. Hello guys, I wanna make an ocean with an ice berg floating over it, I already added environment light, And checked all the diffusion values needed for it but still getting such 2D type of look in my render view i donno what to do now Here is screenshot of my file-
  8. Hey guys, I am new to houdini and i need to know how to project any image on grid in houdini?? I'm working on an ocean scene where i have to set the image of fish on grid over the ocean.
  9. Flat Tank

    Hi, I'm totally new in using Houdini software and I'm trying to recreate the Flat Tank Off the Shelf tutorial here. I used a boat instead. However, my boat is not colliding with the water properly and water goes through the boat. Does anyone have any idea what could be the problem and how should I go about fixing this? I have attached my .hipnc file here. I got the boat model online and I have included it in this post. Thanks. Eunice BoatSim.hipnc boat.obj
  10. 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.
  11. Simulation scale

    Hi guys, I have another question for you, this time about scale. In some of the tutorials for FLIP fluids I've followed, they say that it is important to keep the scale of the simulation as close as possible to the reality. In my case, I have a boat that is 100 meters long, should I try to scale the sim 1:1 or can I scale it down of half or 1/10th? How should I change the solver's spatial scale and mass scale? My main doubt is: should I use a 150m domain with bigger particle sep or a 15m domain with much smaller particle sep? Thank you! Cheers! Andrea
  12. adding ocean spectra

    I'm interested in "layering" large, low-frequency waves with higher-frequency ones. The surface is no problem - just pipe the output of one ocean evaluate into the other. But the ocean evaluate has other products (vel volume, sdf, particles) that are used elsewhere in the pipeline - and in fact some of those parts have their own embedded ocean eval nodes for generating those products. I could hunt down and deform all the volumes, particles, etc. But it occurred to me that a better solution would be to composite the two ocean spectra at the head of the chain. Unfortunately, my math is too rusty for it to be immediately obvious to me how to do this. (Adding them isn't the answer.) Does anyone know how I could go about this? I'm assuming the amp/freq/phase volumes that are output by the ocean spectrum node are spectra giving... power? in each band of frequencies across a given range. But it's not really documented anywhere.
  13. Hi guys, sorry to annoy you but I am just entered in the "world" of VFX and CG and I need your help I am trying to create a shot of a boat moving. I have created a collision geometry, a proxy volume, and run the simulation (particle separation is always 0.03). Once I converted the particles to volume and then to polygon soup, I noticed that the water moved by the bow is wrong: there is a small "gap" between the bow and the water, as if something is between them. I am posting 2 screenshot of the particle simulation and the conversion to volume. Thank you for your help I don't know if you can see it but the lower part of the volume is correctly attached to the boat, but then the distance increases... Cheers, Lazza 79
  14. Hi guys, The question is simple, I am trying to make a shot of a boat with some waves: is it possible, in the OceanFX tool, to "time shift" the ocean? I'm asking because the waves I like are about 50 frames after the start of my ocean and every time i want to modify something I have to "waste" a lot of time while Houdini cooks the scene. I hope you can help me. Cheers! Lazza79
  15. first boat wake

    Hey all! My first post! I am working on a project where we see a shot of a sailboat slowly moving from bottom to about halfway up creating a boat wake. The water will be still like a lake and I don't need to see any foam. What do you guys think is the best oceanFX tool to achieve this?
  16. oceanfx reduce tiling pattern

    Hi, I would like to blend multple ocean spectra together to get rid of the visible tiling pattern, however merging/mixing different spectra together doesn't quite work, unless they have the same gridScale and resolution. I would ideally like to keep the solution as upstream as possible, so ideally at volume/spectrum level, as this would allow to drive potential subsequent flip sims which rely on spectrum data neatly, but I'm not sure if this would be feasible. Can you recommend a nice and tried workflow to add a low frequency noise to break up the pattern? Thanks MisterP oceanWaves_v004.hip
  17. Strongly based on (mighty) Igor Zanic old Naiad test of an helicopter, I worked on this test to get the hang of the new Ocean FX tools in Houdini, as well as testing how to use custom forces to affect FLIPs (to simulate the helicopter blades). Sorry for the somewhat grainy render and some Nuke retiming flicker around. I didn´t have the time to retime and re-render. I think I make up for this with an interesting test. My conclusion so far is that it´s very difficult to use dynamic waves and still keep your main effect strong and controllable because of the amount of interactions going on with the waves. The reason being dynamic waves require a really huge container not to come back too soon and this adds up on the usual problems on any similar scene.
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