Managing The Solid Particle System

The SPS mesh when built has all the properties and methods that you can apply to any mesh. In addition there are useful properties you can use with the SPS. Some you should have met already.

PropertyTypeUse
Property
SPS.particles
Type
particle[]
Use
iterate over this array in initParticles()
Property
SPS.nbParticles
Type
number
Use
total number of particles in the SPS
Property
SPS.billboard
Type
Boolean
Use
turns particles towards camera; false by default
Property
SPS.counter
Type
number
Use
for your own usage, its not set by the SPS

When working with JavaScript you can add your own properties like capacity or rate if needed.

When you don't need your SPS any longer, you can dispose it to free the memory with

SPS.dispose();
SPS = null; // tells the GC the reference can be cleaned up also

When you are not going to use some particle features you can set other properties of the SPS to false disable them. You can always enable them again with true. This improve the performance of the scene as no attempt will be made to update these properties.

Property | Type | Default | Use ----- | ----- | ----- | ----- | ----- SPS.computeParticleRotation | Boolean | true | allows or prevents computing particle.rotation SPS.computeParticleTexture | Boolean | true | allows or prevents computing particle.uvs SPS.computeParticleColor | Boolean | true | allows or prevents from computing particle.color SPS.computeParticleVertex | Boolean | false | allows or prevents calling the custom updateParticleVertex() function

These properties affect the SPS.setParticles() process only. You can change them between calls to SPS.setParticles(). For example setting SPS.computeParticleColor to false after the first call to SPS.setParticles() allows particle colors set during initParticles() to be applied but prevents any call to updating colors in subsequent calls to SPS.setParticles(). When SPS.setParticles() is inside the render loop this can be very beneficial.

Tetra fountain color and texture not updated: Tetrahedron Fountain Color And Texture Not Updated