RealFlow Wisdom

RealFlow blog: Tips, Technics and Scripting.

D_Splines and Grids

This post is not very interesting, but I was playing a little bit with Daemons and Grids and get this paint fiber look.

I got this fluid using a grid and a D_Spline daemon, nothing special! It was rendered with Mental ray RFRK Mesher.



August 11, 2011 Posted by | Animaton, Daemons, Grid Base Fluids, HYBRIDO | , , , | 1 Comment


These days I was looking for information about whirlpools. Here some links:

10 Magnificent Maelstroms

Magnificent Whirlpools and Maelstroms: The Nature’s Own Jacuzzis

Whirlpool Facts and Myths

Giant ocean whirlpools puzzle scientists

Demopolis Lock Whirlpools!


I found some threads in the forums and was playing arround  this subject. By now I have not great results but think it is quite easy to get interesting results using vortex and DSplines daemons.

First test I did was with partcle base fluids, the problem is you need a lot of particles.

These are some tests using HYBRIDO where you can generate a lot of particles, in this tests I have used few cells so they are not showing a lot. In the first example I used a simple vortex, the other three a DSpline gives you more control and let you play with several configurations, animating parameters and its layers.  Now I am working on the other layers of the simulation, splashes , spray, foam, etc.

Some test scenes.

July 19, 2011 Posted by | Daemons, Grid Base Fluids, HYBRIDO | , , , | 6 Comments

Size does matter!

This week I made a very big and newbie error in a set up scene, the grid domain is too big. Next pictures show the difference between adjusting the GD to the full scene and only to the simulation volume.

Always try to adjust the GD to the simulation volume and you will get a better simulation performance, in this case I get double number of particles, with less number of cells and more frames simulated and approximately using same time for the calculation (Simulated in a quad-core).

Resolution: 100.000.000, Simulated Frames: 102, Simulation Time: 14h 38m, Particles: 4.732.376

Resolution: 50.000.000, Simulated Frames: 176, Simulation Time: 15h 47m, Particles: 9.479.624

September 30, 2010 Posted by | HYBRIDO | , , , , | Leave a comment