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Found 444 results

  1. Parting Red Sea

    I want to try an effect about Parting Red Sea,who can give me some idears? thank you!
  2. Smoke & Mirrors ... a NYC post house needs an artist capable of create a macro demo with a biomedical feel. Should be comfortable with Flip/SPH Fluid, Particles, Pyro as well as procedural animation and deformations. This project is self contained so working remotely is a possibility. If you are interested you may contact me directly here for more info using PM here. Thanks
  3. Hi all! Loads of cool stuff here. I'm looking for ideas/suggestions from Houdini veterans on how to recreate a process of melting or a differential erosion of the material. I have attached a screen cap of the closest example I've found in a video by Christoph Bader/Dominik Kolb called Area Contraction. Also attached a macro shot & GIF of my physical experiment of creating similar structures via melting. Sadly, I haven't been able to find any papers or simulation breakdown examples of Area Contraction or how to replicate it in Houdini. There are so many potential paths to take that I feel a bit lost - is it best to operate in volumes or VDBs? Or should I simply stick to particle solvers? FLIP liquid with attractors? FLIP liquid driven by temperature values (lava, snow, ice shelf tools)?
  4. Hi all! Loads of cool stuff here. I'm looking for ideas/suggestions from Houdini veterans on how to recreate a process of melting or a differential erosion of the material. I have attached a screen cap of the closest example I've found in a video by Christoph Bader/Dominik Kolb called Area Contraction. Also attached a macro shot & GIF of my physical experiment of creating similar structures via melting. Sadly, I haven't been able to find any papers or simulation breakdown examples of Area Contraction or how to replicate it in Houdini. There are so many potential paths to take that I feel a bit lost - is it best to operate in volumes or VDBs? Or should I simply stick to particle solvers? FLIP liquid with attractors? FLIP liquid driven by temperature values (lava, snow, ice shelf tools)?
  5. Hello, I was wondering if anyone had any suggestions as to why my flip fluid sim seems to "compress" as my container moves. Any help would be appreciated. Thanks!
  6. Flip Fluid Collision Problems

    Hello! I am having a problem with collision for my flip fluid sim, frame 2 for some reason a chunk of particles falls through the bottom of my "cup" I've checked my collisions on my "cup" and I've also tried adding a sub d node in my tree. both didn't have any result. Also, as the sim continues my particles pretty much all disappear. I'm pretty new to water sims so I'm not really sure the problem. Thanks!
  7. I'm trying to get FLIP and Rigid Bodies to interact with each other. At the moment I've been dropping RBDs (both whole and fractured objects. No packed geo) into a deep tube of water and trying to get them to slow to a stop before floating back up to the surface. So far the best I've been able to do is get the rigids to collide with and move the water. The water has absolutely no effect on the rigids, and neither of the object's masses seems to have any effect on the sim either. I've also tried increasing the Feedback Scale on the FLIP solver (the most common suggestion), plugging the FLIP solver into the merge node before the RBD Solver, and changing it from "Left Affects Right" to "Mutual" (both these changes gave extremely explosive/unstable sims, and still didn't work), changing the rigid solver from bullet to RBD, and playing around with the various collision and velocity settings on the FLIP solver. Nothing worked at all. Does anyone have any suggestions of how to get FLIP and RBDs to play together nicely?
  8. problem with flip

    how can i get rid of the black spot in the water ? look like the flip sim is passing through my geo ?
  9. Turn fluid to soild

    How can i pour liquid into a container and then turn it into solid jell-o ? Thanks in advance.
  10. Made this little motion graphics intro with Houdini and C4D, rendered in Cinema 4d with Arnold
  11. Mike Stoliarov FX artist reel 2017

    Hi! There is my fresh demoreel.Houdini, Maya , Real Flow.
  12. I am trying to export flip sim from H to maya in Houdini 16.If I get it right,I have to export mesh,with flatened geometry ,like alemic,for example,and displacement with baked masks and ocean spectrum like exr ,for example,but I cant make it work.Can anyone help me? Thank you!
  13. Melting/Tar simulation

    Hey Houdini gurus, I am trying to achieve this effect of a melting object. (video below) Do any of you lot have idea on how to approach this? My guess if flip fluid but how to get the stretchy and deforming part with it? Any help on this would be really appreciated. Regards, b
  14. Gently wobbling fluid and foam

    Hi. I'm new to Houdini and wondering how would you guys approach something like this the simplest way: Wobbly fluid example I don't necessarily think that flip is needed for this. Maybe there is a much easier way (like animated booleans) but the foam part is what concerns me. The example looks like it is a texture but I'm not sure if live booleans can have UVs. Anyway I'm just thinking out loud. Any ideas would be highly appreciated. Thanks! wobbly_fluid.mp4
  15. Sticky Splash?

    Hey magicians, I'm trying to takle an effect wich a Splash sort of come out of a screen, Any suggestions on what would be the Best way to approach something like this? Flip fluids with density driving by color? Particles to vdb with vortex? Thanks in advance
  16. FLIP Stick on Mesh

    Hey guys, What is the best way to make FLIP reaaally stick to an object? Right now I'm using only the "Stick on Collision" option but it doesn't work as I expected. I've crancked up the normal value to make it move more drastically but It's getting unstalble. I guess this setup from Dave Stewart works better than the Stick on Collision only (i guess he's using both). It doens't stick like mud the the object but I'd like to know how it works as well, he says: "Grabbed the Pressure field values (Gas Field to Particle) and ran them through a POP VOP, also using the surface distance to reinforce the outer shell of the toy." how can I use the Gas Field to Particle? I know what it does but i have no idea on how to connect it with the object and trasnfer this velocities using a VOP POP. Well, any tips are welcome Thank's - Alvaro
  17. White water issue

    I'm adding white water to a sim and the whitewater is dying by chonks not randomly based in the life expectancy. Any idea of why this is happening or how to fix it? Thanks to all!
  18. Accurated mix colors in Flip

    Hello everyone ! I 'm currently working on a personnal project to experiment FLIP. I'm searching to have a realistic mixed colors in my simulation but I don't achieved to a good result. I used the hda of Jeff Wagner to mix colors in a FLIP simulation but the result is not accurate so the color is too much blurry. Here is my references . I found this render and its not far of the result I want. Here is what I have in my Houdini setup. Thank you for your help !
  19. workflow for flip fluid sim/mesh/render

    Hey! I'm wondering what could be the best workflow for working with flip fluid, from sim to render. I mean, I have the usual setup for flip fluid with autoDopNetwork, particle_fluid and particle_interior. In my very simple workflow I made 2 steps: 1- I wrote to disk my flip sim using the "import_particle" Dop I/O node under the particle_fluid node. This way I have my sim cached out, then 2- I wrote to disk the "particlefluidsurface" mesh using the "surface_cache" node, still under particle_fluid node, then 3- I render What do you think? Any suggestion? I'm wondering if there's a way of doing all of these steps in one go so I can launch the process overnight and find my sim cached and my render done the morning after cheers!
  20. Flip

    Hi Everyone I want to add turbulence to flip particle but not to every particle in the container. I made a box and which ever particles come inside the box only those particles will get affected by turbulence. Can any one help me on this? Thanks Rahul
  21. Attempting to use the guided ocean layer to simulate boat interaction in very large seas (15-30m). Getting lots of cascading down the wave face in the flip area, also some general instability. Has anyone tried this? Is this something beyond the scope of what the tool is designed for? cheers, jm
  22. apply noise to flip fluid source

    Hey! I'm trying to replicate some sort of noise on my flip fluid emission volume in a volume I can use a volume VOP to multiply the density and create some interesting shapes that change over time, but when I emit flip fluid I have this fluid source and I couldn't find a way of eroding it to get a much nicer and organic shape. I'm introducing some noise on the emission speed and that works well, and also I'm applying a mountain SOP to the original shape to break the surface, but I still miss some noise on it. Any idea? fluid_source_noise.hipnc
  23. Hello! just wondering what's the best way to gradually decrease the amount of fluid emitted by an object...is there any way of multiply the emission volume by a noise that slowly goes to 0 in amplitude?
  24. Hi, I generated a bunch of fluid particles on a wave and I used the particle fluid surface node to generate the necessary mesh to be rendered. However, on some frames, about 90% of the mesh disappears. This is pretty frustrating, Can anyone advice me on what's the underlying issue that makes the mesh flicker that way? and how to go about fixing this issue? I've attached the mov file that shows the issue I'm having right now Thanks mesh_flicker.mov
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