Fountains

[DaniSan]

Hello,

I'm currently trying to test out a fountain simulation that will resemble something similar to this. https://www.dropbox.com/s/3y7w34q18o...ample.jpg?dl=0 My problem right now is that my water is too thick and blobby. You can look at my example here, https://www.dropbox.com/s/g65mr7ky39...ntain.jpg?dl=0 Is there a way I could control the thickness of the Liquid? Right now, I'm using a liquid source and using a cube as the source because for some reason, the liquid source will not work with the small pumps I created, unless I scale them up really big. Therefore, I'm using a cube as a work around, and setting it to a surface force emitter because this is the only one that would allow for that bend in the water when it shoots out. I also have a plain force that pushes the liquid down and helps give that bend. So, is there away I could make the liquid source behave with my small pumps and make the water thinner?

Thanks,
Dani

[George Barzinski]

Hi,
the first thing you should do is to increase the grid resolution. That's why you can't achieve thinner water and can't use smaller geometry because voxel size is too large. If the voxel size is larger than the object it won't emitt properly or at all. I think you won't need a plain force after you increase the resolution. Second thing: increase steps-per-frame parameter at about 10 - 15. This would give you smooth spray of water. And third: play with surface tension and viscosity: try something about 0.01 for viscosity and 0.1 for surface tension. It's not a problem using cylinder as well. If the emitter is really small, increase the resolution enough just to make cell size smaller that the emitter.

Cheerz!

[DaniSan]

Thank you, I really appreciate the help! I adjusted the parameters and it's looking good now.

[DaniSan]

Hello,

So I got my water to behave and it looks a lot better after I adjusted the settings. Currently, I'm using the Cascade simulator option and I have a water material applied to the bottom simulation which is working fine. However, now I'm having issues with the second simulation box; for some reason, the water that is accumulating on the statue looks black. They both have the same material applied to them, so I'm not really sure what's causing this black water. Here is my render, https://www.dropbox.com/s/wfh4jtobg2...in_Ex.jpg?dl=0
Any thoughts ?

Thanks,
Dani

[George Barzinski]

Hi,
it's really hard to say. But you need more fps for sure
Would you send us a scene to investigate it?

[DaniSan]

Yes, I will increase the fps so that it doesn't look so jagged. I sent the file over for review.

Thanks,
Dani

[percypc]

I'm struggling with this too, I tried reducing the cell size but it would mean making simulation time into several days... Or maybe I'm just doing something wrong. Any chance we could get a template setup? I found it mentioned somewhere that an early version of Phoenix came with a sample scene with a Fountain, is that the case?

[George Barzinski]

Hi,
If you're new with Phoenix and using Phoenix 3.0 it's good to begin with presets and modify them as you wish. Try tap water preset for fountains. Increasing cell size will increase simulation time.

[georgi.zhekov]

Hello DaniSan,

In your scene you need to select your Particle Shaders, right-click and from the V-Ray properties enable Cast and Receive GI. By default those are off for the Particle shader.

[DaniSan]

Thank you, that worked!

[chadstevens]

Hi,
If you're new with Phoenix and using Phoenix 3.0 it's good to begin with presets and modify them as you wish. Try tap water preset for fountains. Increasing cell size will increase simulation time.

Decreasing cell size will increase simulation time, increasing grid size will increase simulation time

[George Barzinski]

Decreasing cell size will increase simulation time, increasing grid size will increase simulation time

Yes, exactly! Sorry, my fault

[chadstevens]

Yes, exactly! Sorry, my fault

I didn't want to say anything because I didn't want to come across as a smart ass, I just thought that some new user might come along and get confused.

Sorry.

[George Barzinski]

Yes, no problem thanks for the correction. Actually, decreasing cell size leads to higher resolution (more voxels) which means slower sim. time. I hope it's clear enough now