Hi
I would like render a interractive flame launches with traer.
I began from smoke sketch
I would like get a realistic flame :what is better ,gif,movies...?
thanks
the code:
ParticleSystem physics;
Particle last;

void setup()
{
 size( 400, 400 );
 fill( 255, 64 );
 frameRate( 40 );
 physics = new ParticleSystem( -0.1, 0.001 );
 ellipseMode( CENTER );
 smooth();
 cursor( CROSS );
}

void draw()
{
 for ( int i = 0; i < 5; i++ )
 {
   Particle p = physics.makeParticle( 1000f, mouseX, mouseY, 0 );
   p.setVelocity( random( -2, 2 ), random( -23, -25 ), 0 );
   if ( last != null )
     physics.makeSpring( p, last, 100f, 0.1f, 10 );
   last = p;
 }
 physics.tick();
 background( 255 );

 noStroke();
 for ( int i = 0; i < physics.numberOfParticles(); ++i )
 {
   Particle p = physics.getParticle( i );
 
   
    fill( 255,255,25,300/(p.age()+1) );
   ellipse( p.position().x(), p.position().y(), 90, 80 );

   
   
   if ( p.age() > height )
     p.kill();
 }
}