propagate

 

 

This node will propagate attributes from particles in Searh Group to the Particle Stream particles.

 

[Inputs]

 

#Particle Stream - This pin requires a particle stream to be connected.

 

Enabled - Enable or disable node evaluation.

 

Search Group - Neighbour particles are going to be located within this particle group.

 

Overlapping Groups - Enable this option if particles from the Search Group are also contained in the Particle Stream.

 

Filter By RegEx - You can use regular expression to select different particle groups.

 

Search Radius - Find only particles that are within specific distance from the input particle.

 

Search Radius Var% - Search radius variation.

 

Search Pool - Additional option to refine the search.

• All - All particles from the Search Group will be searched as potential neighbours.
• Same Cluster - Only particles from the Search Group that belong to the same cluster as input particle will be searched as potential neighbours.
• Different Cluster - Only particles from the Search Group that does not belong to the same cluster as input particle will be searched as potential neighbours.

 

 

Propagation

Mode - This mode defined how neighbours attributes will be combined with current particle attribute.

• Set - Particle attribute value will be overwritten with neighbours values .
• Add - Neighbour attributes will be added to particle attributes.
• Blend - Values will be blended.

 

Blend Rate % - Defines a mixing rate between neighbours attributes and particle attributes.

 

Falloff - Determines how much each neighbor`s attribute contributes to the total, based on its distance from the particle.

• None - Each neighbor attribute contribution will be equal regardless of the distance.
• Linear - Contribution will use linear falloff.
• Square - Contribution will use quadratic falloff.

 

Falloff Start % - Determines the falloff start as a percentage of the search radius.

 

Velocity Strength % - Determines how much the neighbours velocities will affect the particle velocity.

 

Orbit Strength % - Determines how much the neighbours spins will affect the particle orbit velocity.

 

Color Strength % - Determines how much the neighbours colors will affect the particle color. Final color is clamped to 0-1 range.

 

Custom Chan Name - Type the custom channel name you wish to propagate. Float and Float3 (Vector) channels are suportes.

 

Custom Chan Strength % - Determines how much the neighbours custom channel will affect the particle custom channel.

 

Strength Var % - Percentile variation for all Strength values.

 

Seed - Random number generator seed value.