Particle Advection Node advect particles of simulation data.
If your system has nvidia cuda GPU and checked ‘Use Cuda GPU’ on the Simulation terminal node, use GPU computing for the advection.
If overflow memory for the GPU computing, automatically switch to the CPU computing mode.

Input / Simulation Data:
Input simulation data for Particle Advection. You must connect this input for work.

Output / Simulation Data:
output result simulation data.

Substep Sensitivity:
Defines substep sensitivity of the advection. Smaller values makes more sensitivity. High values makes advection errors around obstacles. Usually, 0.2 – 0.8 makes good result.

Min Substep:
Defines minimum number of advection steps.

Preserve Thin Area:
When checked, to preserve thin sheeting area.

Process Step:
Defines thin area process step. 1 means process every step. Larger value means more process is omitted and thus the less accurate the preservation, but get faster.

Thin Area width[cell]:
Defines width(thickness) of thin area.

Search width[cell]:
Defines search area to find additional particle space. No additional particles will be generated between particles pair that are farther apart than this value.

Search angle[degree]:
Defines angle of the particle pair for additional particles. If velocity angle of particles pare are more than this value, no additional particles will be generated.