...
- "Num Threads" specifies the number of processors/cores for the simulation.
- You will hardly see any boost in simulation time with more than 32 threads.
- "Use Geometry Velocity" is only relevant if your project contains animated objects*)
- "Use GPU" activates the simulation via your graphic card. We recommend reading the → linked page for more information about what's important.
*) In simulations with adaptive substeps RealFlow | Maya works with lower precision (= less substeps) as long as the particles do not interact with objects to speed up the calculations. When objects are animated RealFlow | Maya might choose the wrong number of substeps. By enabling "Geometry Velocity" the solver will take the interacting objects' velocity into account to determine the correct number of substeps. This way you will get proper results.
...