In The way of creating Thinking Particles has changed since RealFlow | Cinema 4D 2.5 the way of creating Thinking Particles has changed:
- Open Simulate > Thinking Particles > Thinking Particles Settings...
- Right click on the "All" branch and choose "Add" to create a new group.
- We recommend changing the default name ("Group.1") to something more meaningful like the fluid container's name.
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- Drag the group to the fluid container's Particles > Thinking Particles field.
- The group can also be connected to MoGraph nodes, a "Particle Geometry" object, etc.
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