Sojudy

Not one for Martin!

ß e n

/**
 * sojudy v1.0
 */

//
// Dimensions of screen.
//
int kWidth = 640 ; //480 ;
int kHeight = 480 ; // 480 ; // 320 ;

//
// Dimensions of texture.
//
int kTextureWidth = kWidth ;
int kTextureHeight = kHeight ;

//
// Define a history buffer of screen textures.
//
PImage history = createImage( kTextureWidth, kTextureHeight, RGB ) ;


void setup()
{
  size( kWidth, kHeight, JAVA2D ) ;

  colorMode( RGB, 1.0 ) ;
}

void draw()
{
  float t = millis() * 0.001 ;

  //
  // Feedback!
  //
  pushMatrix() ;

  translate( width/2, height/2 ) ;
  rotate( t * 0.0003* sin(t) ) ;
  scale( 1.04 ) ;

  image( history, -width/2, -height/2, kWidth, kHeight ) ;
  popMatrix() ;

  //
  // Colour blast.
  //
  for ( int j = 0 ; j < 8 ; ++ j )
  {
    pushMatrix() ;

    if ( true )
    {
      translate( width/2 + width*0.020*sin(t), height/2 + height*0.020*sin(t*1.37) ) ;

      rotate( 2.0*PI*j/8.0 ) ;
      translate( width * 0.05, 0.0 ) ;
    }
    else
    {
      float dx = width* 0.25 * ( 0.5 - noise(t,0, j ) ) ;
      float dy = height* 0.25 * ( 0.5 - noise(t,0, j ) ) ;

      translate( width/2 + dx, height/2 + dy ) ;
    }

    // translate( width/2 + width*0.20*sin(t), height/2 + height*0.20*sin(t*1.37) ) ;

    noStroke() ;
    fill( noise(t,0,j), noise(t,1,j), noise(t,2,j), 0.1 ) ;

    beginShape() ;

    for ( int i = 0 ; i < 100 ; ++ i )
    {
      float x = width * 0.25 * ( 0.5 - 1.0 * noise( t, 1.5 + 0, i * 0.1 ) ) ;
      float y = height * 0.25 * ( 0.5 - 1.0 * noise( t, 1.5 + 1, i * 0.1 ) ) ;

      vertex( x, y ) ;

    }

    endShape()  ;

    popMatrix() ;
  }

  //
  // Black smoke.
  //
  if ( true )
  {
    pushMatrix() ;

    translate( width/2, height/2 ) ;
    for ( int j = 0 ; j < 5 ; ++ j )
    {
      fill( 0, 0, 0, 0.1 ) ;

      beginShape() ;

      for ( int i = 0 ; i < 100 ; ++ i )
      {
        float x = width * 0.15 * ( 0.5 - 1.0 * noise( t, 1.5 + 0, j*100 + i * 0.1 ) ) ;
        float y = height * 0.15 * ( 0.5 - 1.0 * noise( t, 1.5 + 1, j*100 + i * 0.1 ) ) ;

        vertex( x, y ) ;
      }

      endShape() ;
    }
    popMatrix() ;
  }

  //
  // Use the current frame as a texture.
  //
  history.copy( get(), 0, 0, width, height, 0, 0, kTextureWidth, kTextureHeight ) ;

}