gistfile1.m

// called with
[self shape_tree:3 angle:current_rotation leaves:5];


// definition
- (void)shape_tree:(int)depth angle:(GLint)angle leaves:(int)leaves {
  double offset = 360/leaves;
    for (double i = 0; i <= 360; i+=offset) {
      glPushMatrix();
        glScalef(0.5, 0.5, 1.0);
        glRotatef(i, 0.0f, 0.0f, 1.0f);
        glTranslatef(0.7, 0.7, 0.0);
        
        glRotatef(angle, 0.0f, 0.0f, 1.0f);
        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
      
      if(depth > 1)
      {
        [self shape_tree:(depth-1) angle:angle leaves:leaves];
      }
      
      glPopMatrix();
    }
}