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- A node's simulation state is represented by a rocket icon. This icon can be found in the icon bar, but also in the “Nodes” panel, where every entry has its own rocket symbol.
- Click on the icon to switch between “Active” (green), “Inactive” (red), and “Cache” (yellow).
- “Cache” requires an already existing simulation. When enabled RealFlow will read the simulated data from disk. → Cached nodes are able to influence other active nodes/particles, but they cannot be influenced themselves.
- Multi-node selections are allowed and you can change the state of several nodes at once.
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- Right-click on “Simulation” and choose “Edit Curve...”
- Go to the empty line at the bottom of the appearing → “Curve Editor”. There, an → expression can be added – this is the most effective way of animating simulation states.
- Change from active to inactive at a certain frame, e.g. 50:
if(f>49,0,1) - Change from inactive to active at frame 50:
if(f>49,1,0) - Change from cache to inactive at frame 50:
if (f>49,0,2)
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