Filters can be seen as the core of RealFlow's “Spreadsheet” engine. They offer powerful tools to group, separate, highlight, preview, and visualize a scene node's properties. Filters do not have any influence on non-simulation nodes like daemons or cameras and they are not saved with a scene.Please note that we have .
It is necessary to differentiate between “filters” and “rules”: a filter consists of one or more rules.
Applying a filter is very easy – the described workflow is valid for any → supported node type and element (particles, vertices, etc.):
- Choose a node and open its “Spreadsheet”, e.g. with a right-click on the node under "Nodes".
- Enable “Filter entries” and click on the appearing “Filters...” button.
- A new window is opened where filters are defined.
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Let's assume we have a simulation with standard SPH particles particle fluids and we want to filter all particles with less than 15 neighbours and a velocity of 2.5 or greater. This action requires two rules:
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What we have now are two rules within a single filter. Confirm with OK to close the window. Filters will only be applied during simulation, so it is necessary to hit “Simulate”.
Checking the Results
In the next step, the filter will be visualized, because a long list with data is not always informative. Anyway, this list can be used for a quick check if the filter has been applied correctly:
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