Ogre 3D 1.7

Time for action — adding a scaler affector

1. To show what an affector does, we need a simple Point emitter that emits 30 particles per second with a speed of 20 units and 100 seconds of life:

   emitter Point
   {
   emission_rate 30
   direction 1 0 0
   velocity 20
   time_to_live 100
   }
   

2. During the whole lifetime of a particle, we want it to grow five times its size per second. For this, we add a Scaler affector:

   affector Scaler
   {
   rate 5
   }
   

3. Compile and run the application. You should see particles that get bigger with each second they live.
   

What just happened?

We added an affector that changed the size of our particles for their complete lifetime. The Scaler affector scales ...