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Getting started with RealFlow is very easy and requires only a few steps. Everything starts with a new project:

  • Open RealFlow and specify a location on your hard disk and a project name in the "Project Management" window.
  • Click on "CREATE A NEW PROJECT".

 

The "Project Management" dialogue.

 

RealFlow will create several standard folders. If you want to see the project directory's content go to File > Open Project Folder...

Adding Fluid Simulation Nodes

Now you are ready to → add the scene's nodes. Here, we want to start with a very basic → Dyverso fluid simulation:

 

The "Dyverso" domain icon.

 

  • Dyverso - Particles shelf > Domain
  • The domain will contain the particles and is responsible for the fluid simulation.

 

Additionally, you have to specify where the fluid will be created. This is the point of emission:

 

The Dyverso "Circle" emitter icon.

 

  • Dyverso - Particles shelf > Circle
  • A circle-shaped icon with an arrow appears in the viewport. The arrow indicates the emission direction (see image below).
  • With the E key it is possible to rotate the emitter, the W key is used to define a new position.

 

The emission direction arrow.

Adding Interaction Nodes

We want the fluid to fill a vase. To do that, two more nodes are needed:

 

The "Gravity" and "Vase" node icons.

 

  • Daemons shelf > Gravity
  • This node accelerates the fluid and makes it fall.
  • Objects shelf > Vase
  • Rescale the vase with the R key and reposition the "DY_Emitter01" node, if necessary.

 

This is already everything and you can press the → "Simulate" button:

 

The complete setup: domain, emitter, daemon, and vase.

 

  • In the → timeline you can see an orange progress bar, indicating which frames have been simulated already.
  • During the simulation, files with the particles' data are written to disk.

Refining the Simulation

In oder to create more particles go to

 

 

  • DY_Domain01 > Node Params > Particles > Resolution > 50.0
  • Now, the fluid will be "denser" and you will see more details.

 

A more natural look of the fluid is achieved with:

 

 

  • DY_Emitter01 > Node Params > Circle Emitter > V | H random > 1.0
  • These parameters remove the regular emission pattern.

 

Most probably you will see a gap between the vase object and the fluid particles. Here is how to improve the quality of the interaction:

  • Vase01 > Node Params > Volume > Cell size > 0.02

 

The result of this short tutorial (press the 8 key for wireframe mode).

 

Of course, you can add other daemons, e.g. → "Wind" or a → "k Volume" daemon in oder to delete escaping particles. Play with the "DY_Domain01" node's settings to see how the fluid will react to your changes.

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