internal override void ExecuteModifiers(IEnumerable<IModifier> modifiers, float elapsedSeconds, ParticleBuffer.ParticleIterator iterator)
 {
     TPL.Parallel.ForEach(modifiers, modifier => modifier.Update(elapsedSeconds, iterator.Reset()));
 }
 internal override void ExecuteModifiers(IEnumerable<IModifier> modifiers, float elapsedSeconds, ParticleBuffer.ParticleIterator iterator)
 {
     foreach (var modifier in modifiers)
         modifier.Update(elapsedSeconds, iterator.Reset());
 }