Intro to the Fluid Simulator – Round 2

In this Blender 2.5 video tutorial we take another look at the fluid simulator, going on to demonstrate how to use fluid particles to improve your simulation.

Our first intro to the fluid simulator can be found HERE

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Discussion

69 Responses to “Intro to the Fluid Simulator – Round 2”
  1. Posts: 11
    Noah says:

    In the blender short, Sintel, The wizard guy gave the girl some stuff to drink . . . how would you make it so the fluid isn’t all splashy and instead is already settled like it was in Sintel.

    • Posts: 8
      Stefan Maerz says:

      Noah,

      Increasing viscosity will change the characteristics of the water. As an example higher viscosity (or more viscous) fluids include motor oil or honey.

      This will make your fluid less “Splashy,” but may not be what you want.

      What I would try is making a fluid that starts out in the bottom of a container. Try modeling your water object to be the same shape, but slightly smaller (so it fits inside) than your container object. I think that would solve your issue.

      • Posts: 11
        Noah says:

        Thanks for the tip. I’ll try that!

  2. Posts: 1
    Ray Cefola says:

    Thanks for the tut Jonathan! This explained EXACTLY what was puzzling
    regarding the bowl. Keep those tuts coming!

  3. Posts: 1

    Can’t seem to get the particles working? After adding the plane and defining it to fluid particles (and tracer particles for domain), no particles are visible when I bake. Any ideas? I’m using 2.62.

  4. Posts: 1
    Adriano says:

    very nice tutorial, thanks!

  5. Posts: 6
    Paul Jackson says:

    Hey can i make and render a Hight Res Fluid simulation in Blender?
    Specs:

    AMD Athlon II X2 215
    2.17 Ghz
    1,75 RAM Memory
    Graphics:ATI Radeon HD 5600 Series

  6. Posts: 5
    Will E says:

    I am experiencing a problem in blender 2.63.0, I have matched what jonathan is doing in the video in the first 6 minutes exactly, but when i bake with the obstacle, it does not function as a bowl, but as a box. Also, there is a buggy plane that extends from my bowl the the edge of my domain, which also blocks the flow of my fluid. it is extremely frustrating, and any help would be greatly appreciated. Thanks in advance.

  7. Posts: 1

    I want to do fluid in phial. The phial will be a glass and when i move phial the fluid will be move but I don’t know how to do this.

  8. Posts: 13
    8steady says:

    Thanks for the great tutorial. I am having a problem with the obstacle: I’ve followed the video down to the keystroke to make sure I’m doing the same thing, yet my fluid object does not react with my obstacle the way it should. The obstacle is treated like half of a solid sphere rather than a bowl, though I created the mesh in exactly the same way done in the video. I’ve tried increasing resolutions, domain size and a few other things to no avail. Thanks for any help…

    I’m using Blender 2.68a. It happened to be set to Blender Render & not cycles, but I can’t imagine how that would affect my simulation.

    • Posts: 13
      8steady says:

      Okay. Just in case anyone else has this issue, after a lot of fiddling with it, I figured out my problem. When you create the “obstacle” object, if you want your fluid to go into the bowl or glass or any other vessel-shaped mesh, you must choose “shell” (it’s set to “Volume” by default) in the “volume Initialization” drop down menu. This must be a difference in Blender versions, because in the tutorial Jonathan did not have to change this setting and his obviously worked.

      Anyway, It seems possible this question has been asked and answered in these comments, but if it was I wasn’t able to find it, so I appologize if I’m duplicating stuff here.

  9. Posts: 4
    ernestcampos says:

    I’m having an issue with the fluid being blocky on the bottom. I’ve turned off the visibility of the obstacle so I can make the fluid look like it’s filing an invisible hemisphere. The top is smooth (i’ve set the final resolution to 150 and viewport shading to smooth) and I’ve set the viewport display to ‘final’ in the domain settings. I’ve checked my normals, even added a subsurf modifier. I’m not sure why it’s looking so blocky. I checked the shell -vs- volume thing out too – no go. Any pointers?

  10. Posts: 4
    royov says:

    Hi Jonathan, This is a nice tut!. I was wondering if you will update this to 2.72. There are many more settings and options although I understand some basics are the same. I would really love to see a verbose fluid tut with each variable explained. There are many types of a fluid like substances, like say tooth paste but I only see tuts for water like fluids. Specifically, I am trying to create a scene where a substance is being squeezed from a tube then later being spread out with a spatula on a surface. Also, are particles a better way to do this? Or should I stick with the fluid sim?— Thx if you have time to answer this.

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