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Found 75 results

  1. I want to do a marine vortex effect in the Houdini, but in the actual production of the rotating force field to add to the fluid to drive fluid, found that the fluid will be dumped over time, which makes me very distressed, also do not know how to solve, I hope someone can help me, there is no information to learn! Thank you
  2. Hope this in the right section, it's a bit of both effects and lighting/shading! I am working on a shot that involves an ocean surface in overcast lighting and I'm really struggling to get it right. I am aiming for something like the attached image but my attempts have come out looking way too glossy/specular by comparison. When I try to push the overcast lighting, I also run in to the problem of the scene really flattening out. How do I keep the detail and contrast in the waves without any bright highlights? I am currently working with mantra but hope to switch to htoa. Thank you!
  3. 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!
  4. Arnold, houdini, ocean

    Hi I`m trying to render ocean surface with Arnold in Houdini. But I just can\t get the transparency to work. In maya there`s checkbox Opaque for the render grid. I can`t seem to find it in Houdini. Thanks in advance Janis
  5. Help With Ocean Surface

    Hey, It would be amazing if someone could help me with this problem. When I render my beach sim the surface looks terrible with these spots. It seems that the surface renders differently depending if the particle fluid surface is below my ground mesh or above. Look at the photos. Photo 1 you can see white spots where the mesh is not penetrating ground. Render two I moved the ground mesh so it is not penetrating at all. Render 3 is the back side of the of render 1. See the white spots on photo 1 correlate with the parts where the mesh does not penetrate the ground. What do I do? How do I fix this? Thanks test.hipnc
  6. Ugly artefacts

    Hey, got a pretty annoying problem. A certain area of my ocean always gets some artefacts. The dark area isn't responding to AA blur, geometry input etc. Rght behind that its okay again. ANY idea whats the problem here?
  7. Hello Everyone. Im trying to test my foam particle settings on my ocean but every time I change a setting it re-creates the ocean displacement taking 7 mins each time before it starts to render. I know I can bake out the displacement, but how do I attach it to the ocean surface shader so it doesnt re-create it every time I change a setting.? Or am I doing this totally wrong and there is a better way?
  8. Ocean mesh flickering problem

    Hi, Here is my WIP for a deformed wave. I need some feedback on this. The ocean surface is flickering quite a bit, what's causing this problem and how should i go about fixing? Is this a shading problem or something else entirely? Thanks
  9. Ocean sim help

    I am working with an ocean sim using flip container. I created a static object that is colliding but the water that is created as a result of the collision is very thick. Its like 5-10 feet thick instead of particle or paper thin. how do I make the water thinner?
  10. Ocean sim help

    I am working with an ocean sim using flip container. I created a static object that is colliding but the water that is created as a result of the collision is very thick. Its like 5-10 feet thick instead of particle or paper thin. how do I make the water thinner?
  11. Creating waves with vertical lines

    Hi, I have a question about the ocean spectrum node. I have created a deformed wave using a grid with ocean spectrum and ocean evaluate node. I can change the ocean spectrum wind direction setting to achieve the kind of look I want, which is to have the vertical lines on the ocean surface, something like the image below. But if I only do that, the waves direction is still wrong, they are moving sideways. Is there a way where I can create this effect with chops moving in the right direction? I thought perhaps I should create another ocean spectrum and put it on top of the first ocean spectrum. This is pretty urgent, does anyone have any suggestions? Thanks!
  12. 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!
  13. Canary Surge V2

    Hi there! this is my new Canary Surge V2, improved workflow for whitewater, foam and shading stuffs.Please watch in HD 720. Vimeo compression kill of the fine details sorry. http://ipsvfx.com/project/canary-surge-v2/
  14. Hello all, Has anyone else run into this issue? Using Houdini 16.0.597 on Linux, I created a flip sim, used the Ocean Flat tank setup and created an extended ocean and all works well. But at render time, the flip part of the sim that sits above the waterline appears to be missing something and renders very dark. I have checked the reflect/refract limits, checked the displace bounds and I'm using the standard oceansurface shader. I have generated a suitable interior volume, and the issue is there with or without the interior. I have a screenshot of the issue (taken with my phone cam so apologies for the quality) - just the ocean surface, no interior. I have tried with simpler sims, different settings on the shader, and the problem persists... Any advice would be appreciated! Thanks, Matt.
  15. Hello! I am trying to create a shader with the Arnold VOP network that is comparable to the ocean volume mantra creates when the ocean toolkit is used. I have Arnold experience, but am having a hard time finding resources related to rendering volumes with Arnold (that are free, I'm a student on a budget). Any help would be appreciated, thank you!
  16. Procedural Coral Reef

    I've always been fascinated by procedural set modeling, so I figured I'd try my hand at modeling some tropical marine life in Houdini. I'll be posting my progress here! I have started hashing out a few basic types of coral, anemone, etc. Hoping to eventually get this all into a large scene. Anemone motion test: I apologize, but I cannot currently share hip files of these scenes since they may be used in a contract.
  17. 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
  18. Sourcing whitewater from points

    Hello! I feel like this has an easy solution that I'm just totally missing, so at the risk of sounding dim: I have some scattered points over some geometry, and I want to use those scattered points to emit/create whitewater. What is the process involved in having points used in the whitewater solver? Thank you!
  19. Houdini Tutorial VOL 01

    Houdini tutorial VOL 01 Houdini Training Package number 1: Educator : Amin Sadeghvand | Software : HOUDINI 15.5 | Level : Medium | Duration : 13 hr | Volume : 4.31 GB| Quality : HD | Language : English . Website
  20. white spots ocean render

    Hi, I believe that I saw a post about this, but I can't find it again. My ocean is clipping slightly through my ground. It causes white spots in the render. Maybe it has to do with refraction? What should I do about this? Change something in particlefluidsurface? Thanks.
  21. Pluralsight is proud to offer three new courses... one covering intermediate level ocean shot development, a second covering the development of visual effects for Unreal Engine, and another covering the fundamental math concepts that are pivotal to working within Houdini. Below is a bit about each course and a link where you can check out the course overviews. Houdini: Intermediate Ocean FX by Andreas Giesen Link: www.pluralsight.com/courses/houdini-intermediate-ocean-fx In this course, you'll learn how to setup a procedural ocean and do a flip fluid simulation for a traveling boat in choppy waters. First, you'll discover how to use the ocean spectrum to create an infinite ocean. Next, you'll add the boat, do a flip simulation for a specific area with high detail, and add whitewater and mist. Finally, you'll extend the simulated area and set-up the shaders to render all the layers. When you're finished with this Houdini 16 course, you'll not only have an ocean rendered with a high detail fluid simulation, but you'll also have a workflow on how to master your own ocean and fluid challenges in the future. (Software required: Houdini 16.) Houdini VFX for Games by Andreas Glad Link: www.pluralsight.com/courses/houdini-vfx-games Have you ever sat down in Unreal Engine to create an effect, and not had a clue where to start? In this course, you'll start from the very beginning by creating the textures for your sprites. Next, you'll create debris in a way that allows you to use it repeatedly and uniquely. Finally, you'll add all the extras to really sell the effect, like decals, camera shake, and a shockwave. When you are finished with this course, not only will you have gained a deeper understanding of timing and the importance of telling a story with the effect, but you'll have planted the seed for future endeavors into proceduralism. (Software required: Houdini 15 and up, Photoshop and Unreal Engine 4.) Practical Houdini Math Tips by Beau Garcia Link: www.pluralsight.com/courses/houdini-practical-math-tips In this course, you will learn the math that drives Houdini effects production. First, you'll learn about Sines and Cosines. Next, you will explore the concept of Vectors. Finally, you'll finish the course learning about Matrices, Quaternions, Dot Products, and Cross Products. When you're finished with this Houdini course, you'll have a solid foundation in the math skills needed to produce high end visual effects. (Software required: Houdini 15 and up.) Thanks, and as always, I'd love to hear your feedback on these courses so we can continue to improve! Learn more about SideFX and Pluralsight: www.pluralsight.com/sidefx
  22. Hello! I can't get to work the new ocean surface setup, even with the provided scene files. I the viewport it's seems fine, but it renders flat. (and without the foam) Yes, I baked the spectra node. Can anyone point me in the right direction? There is none learning material about the new ocean surface, not a single tutorial, only the masterclass. Thanks
  23. Hey, What is up with these white patches? Do i just need to turn down refraction or sim at higher res? Thanks
  24. Hey, I have to work a a pretty huge ship szene. Unfortunately I can't really give out the spectrum file or the masks because during the baking process all my memory gets eaten up (64 GB) what ends in a crash. So we are talking about a test situation with only 1 million flip particles. I also decreased the mask resolution to 0,1 and tried ‘use input volumes only’. The flip domain itself is very huge (400-600 m).So how could I save some memory during this process or even make it work at all?
  25. I am creating a long animation of a boat on an ocean surface. I am using the new guided ocean surface with Houdini 16 to make use of the extended fluid surface blending to an infinite ocean. I am encountering a couple of problems, one being that as the sim continues the boat becomes a submarine due to so much fluid, but also, relating to the topic of this post, white water emission is occurring everywhere making blending into the ocean a problem. The question is, how to I use the volume mask created by the particle fluid mask node to reduce the velocity, curvature, and vorticity of the compressed fluid sim so that the white water emission will blend better with the infinite ocean? Any insight would be very welcome. Thanks
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