Follow Operator

 

 

 

 

Basically, the FumeFX Follow Operator forces particles to move in the same way as fluid does throughout the simulation. This will make it seem as though the particles are part of the fluid, and can be used to add detail to the simulation. This operator only acts on specified particle systems and particles that are inside the fluid - all other particles are ignored.

 

 

Input Ports/Attributes

Enabled - Attribute enables or disables operator. If disabled, FumeFX grid will not affect particles.

 

Affects Velocity - This attribute is on by default. It will make particle velocity is affected by FumeFX grid velocity.

 

Velocity multiplier - If you change multiplier from the default value of 1.0, particles will move respectively faster or slower than the fluid, but still in the same direction. Negative values are supported, so particles can move in opposition to the fluid.

 

Velocity Influence - refers to the percentage of FumeFX's velocity (multiplied with the above multiplier) blended over the existing particle velocity in one frame. Thus 100% means that the particle follows FumeFX velocity completely; anything less gives wind-like effects.

 

Affect Orientation - This option is on by default and it will orient particles along the fluid flow direction.

 

Orientation Max Velocity - The Maximum Angular Velocity value can limit the turning velocity for the particles. This value is set in radians per second.

 

Delete on Out Of Grid - If a particle leaves the FumeFX grid - whether permanently or temporarily - you can choose to delete it. If the particle is not deleted it will continue its movement uninterrupted by FumeFX.

 

Delete on Object - enabled particle will be deleted when it enters an area in simulation which collision object has occupied.

 

Link FumeFX - Operator will read from FumeFX grid specified by this attribute. Drag any FumeFX grid object from Object Manager to this attribute.

 

Particle - Attribute specifies which particle system or TP group will be affected by this operator. This operator support C4D built-in particle system and cebas' TP system.