glowing triangle spinning around circle for Processing P3

glowing-triangle.java

//PGraphics pg;

class Triangle {
  private float angle = 0;
  
  Triangle() {
  }

  void rotate() {
    this.angle += 1;
    if (this.angle >= 360) {
      this.angle = 0;
    }
  }
  
  void display() {
    stroke(255);
    noFill();
    
    float radius = 50;
    float xCenter = 55;
    float yCenter = 55;

    float x0 = xCenter + cos(radians(this.angle))*(radius);
    float y0 = yCenter + sin(radians(this.angle))*(radius);
    float x1 = xCenter + cos(radians(this.angle+120))*(radius);
    float y1 = yCenter + sin(radians(this.angle+120))*(radius);
    float x2 = xCenter + cos(radians(this.angle+240))*(radius);
    float y2 = yCenter + sin(radians(this.angle+240))*(radius);

    strokeWeight(6);
    line(x0, y0, x1, y1);
    line(x1, y1, x2, y2);
    line(x2, y2, x0, y0);
    ellipse(xCenter, yCenter, radius / 2, radius / 2);
    filter(BLUR, 7);
    
    strokeWeight(4);
    line(x0, y0, x1, y1);
    line(x1, y1, x2, y2);
    line(x2, y2, x0, y0);
    ellipse(xCenter, yCenter, radius / 2, radius / 2);
    filter(BLUR, 3);
    
    strokeWeight(2);
    line(x0, y0, x1, y1);
    line(x1, y1, x2, y2);
    line(x2, y2, x0, y0);
    ellipse(xCenter, yCenter, radius / 2, radius / 2);
    
  }
}

Triangle triangle;

void setup()
{
  size(110, 110, P3D);
  triangle = new Triangle(); 
}

void draw()
{
  background(0);

  triangle.rotate();
  triangle.display();
}