When nParticles are created or emitted, they appear in the simulation with a radius value set by the attribute. You can vary nParticle during the simulation by setting the ramp. The ramp allows you to map per-particle values to nParticle properties such as , , and .
To set nParticle
- In the scene view, select the nParticle object you want to edit.
- In the Attribute Editor, select the nParticle object’s tab.
- In the section, set the value.
To set the ramp
- In the scene view, select the nParticle object for which you want to set a ramp.
- In the section of the nParticleShape node , create the radius value curve by setting values for and .
For more information about the ramp, see Radius Scale.
- Set an method to determine how particle radius blends between each position on the ramp. See Interpolation.
- Set to determine which attribute is used as the input attribute for the ramp. See Radius Scale Input.
- (Optional) Set to define the range of the ramp. See Input Max.
- (Optional) Set the to add a randomized multiplier to per-particle values. See Radius Scale Randomize.