An IDOC is an acronym standing for “Independent Domain Of Computation”. If you look under the grid fluid icon, you can see a total of three emittersentries: “Splash per IDOC”, “Foam per IDOC” and “Mist per IDOC”. Another location for IDOCs can be found right to the RealWave icon. From this menu you can add IDOCs for both standard and grid fluids, and simulate them over your network. This method is perfectly suited for side-by-side comparisons, for example.
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The creation of IDOCs is an easy task and you can either start with an IDOC or an emitter/secondary element node. The IDOC is by default a cubic domain with a size of 1 1m x 1 1m x 1 units 1m, and it can be scaled like any other RealFlow object. The next step is the creation of an emitter. To be recognized, the emitter must be located inside an IDOC, though the exact position does not play a role. It is actually only important that the emitter’s viewport symbol lies within the appropriate box. Once this has been done, it is time to connect the emitter to the desired IDOC – that is just a drag and drop thing. Grab the emitter and drag it onto the appropriate IDOC. All this is done within the "Nodes" panel and that is already all you have to do at this point. It is even possible to attach multiple emitters to a single IDOC and these particle are able to interact. To add more domains, either repeat this process or directly use the following method for multiple IDOCs.
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