Random Seed
Sets the random seed so a procedural variation can be reproduced.
Restyle existing particles
Changes the appearance of particles after emission, including style, blend mode, color, opacity, color variation and life-based fading.
pChangeStyle is useful when particle motion should remain intact but the visual representation needs to change later in the stream.
Overview
pChangeStyle is useful when particle motion should remain intact but the visual representation needs to change later in the stream.
Think of it as changing the costume of particles without changing where they are or how they move.
Flow anatomy
The port structure shows how this node fits into a Fusion graph.
Incoming particle stream from pEmitter, pImageEmitter, pMerge or another particle node.
Optional region or mask that limits where the operation affects particles.
Processed particle stream for additional particle tools or pRender.
Inspector
Start with these controls before reaching for more complicated workarounds.
Sets the random seed so a procedural variation can be reproduced.
Sets the random seed so a procedural variation can be reproduced.
Locks procedural randomness to time so the same frame evaluates consistently.
Controls whether particle set membership is changed.
Enables replacement of the particle render style.
Selects the new particle appearance.
Controls how the particle style blends when rendered.
Uses sub-pixel rendering so very small particles move and render more smoothly.
Sets the color.
Provides separate controls for the red, green, blue and alpha channels.
Adds controlled random color variation.
Links Color Variance so they change together.
Defines how particle color changes from birth to death.
Changes color as particle age advances.
Controls particle fade behavior over life.
Sets the probability that this particle operation is applied.
Sets the particle-age range affected by this operation.
Particle age is measured over the particle lifetime; use the start and end values to limit where the behavior becomes active.
Selects the Set Mode used by pChangeStyle.
Chooses which particle sets are affected by this operation.
Selects the particle region type.
Chooses the geometric region used by the particle operation. Available region types include Ignore region, When intersecting region, When inside region, When not intersecting region, When not inside region, When entering region, and When leaving region.
Selects the particle region type.
Chooses the geometric region used by the particle operation. Available region types include All, Bezier, Bitmap, Cube, Line, Mesh, and Rectangle.
Practical setup
Create the emitter and motion first.
Insert pChangeStyle after the motion stage you want to preserve.
Enable only the style attributes that actually need changing.
Set color/opacity behavior.
Use Probability, Age, Sets or Region for selective restyling.
Examples
Particles keep the same motion but shift color later in the stream.
Only one particle set is changed to a second style.
Troubleshooting
Production notes
Related nodes