wk14

size(600,600,P3D);
background(255);
//glBegin(GL_POLYGON);
beginShape(TRIANGLE);
  //glColor3f(r,g,b);
  //glVertex3f(x,y,z);
  fill(255,0,0); vertex(300,100);
  fill(255,255,0); vertex(500,500);
  fill(0,0,255); vertex(100,500);
//glEnd();
endShape();