RealFlow Wisdom

RealFlow blog: Tips, Technics and Scripting.

Proxy fluids versions.

One of the features in RealFlow5 is the capability of extracting a version of the fluids in low quality or better said lesser number of particles. Apparently this could seem something contradictory if we are talking about simulations, but actually the most important reason is the possibility of visualizing and check quickly the results obtained from our simulations. Still more when these contain millions of particles.  I would like to make it clear that there is only one way in RealFlow to calculate the proxy version  and the way is by activating it in the Export Central panel. Each Emitter or Grid Domain has a check box to extract the proxy version and is highly recommended activate it always you are going to work with millions of particles or cells in case of using Grid Domains.

There is the possibility of visualizing the proxy version during the simulation in the GUI, you can access by selecting one of the options from the button (eye),but in any case this button actives the options in the Export Central.

The following video shows the full simulation with all thes particles contributing to the simulation (6.000.000 Cells, aproximatelly 6.000.000 of particles). This video is visually much more spectacular but to  create it I needed 1 hour approximately.

In these previews I activated the GD, Splash and Foam proxies. Actually, between them there is no big differences in times, but they do not exceed of 4 minutes. This is the main reason to use proxies in complex simulations.  Some of the following simulations are not so spectacular as the first one, but it is enough to have an idea of the final result.

June 26, 2010 Posted by | GUI, HYBRIDO, Scripting, Tips | , , , , | Leave a comment

How to animate emitter attributes in RFRK2.0?

Some features in RF5 are not available directly in RFRK 2.0, one of them is the possibility to animate the radius or splash, those which are included in the sequence tab:

To animate the particles attributes you have to do it manually, I mean using a simple mel line. First go to the frame you want to animate and set the value, then write in the Script Editor:

setKeyframe “rfrk_geo_flowmesher21.files[0].radius”;

Where files[0] is the first emitter in the tab list and radius is the attribute to set the key.

This video shows four particles with an animation in both Radius and Plygone Size attributes.

Note: Thanks to Mihnea Balta for the tip.

June 8, 2010 Posted by | RenderKit, Tips | , , , , , , | 2 Comments

Create emitter versions using IDOCs.

In RF5 you can have another use of IDOCs (Independent Domain Of Computation), you can use them to store several results of the same emitter without create new one or a new scene. You  only need to add as much IDOCs as versions you want. Please, have a look to this video!!

In addition to this you can combine this tip using the exporting to xml option After simulate, select the emitter (or even the full RF scene)  and export them with the same IDOC name so you could have saved and stored your sims and emitters presets. This tip let you store all your presets for every node in the scene.

June 3, 2010 Posted by | GUI, Pipeline, Tips | , , , , | 3 Comments