Modify Program 2.2 to add animation that causes the drawn point to grow and shrink, in a cycle. Hint: use the glPointSize() function, with a variable as the parameter.

Program 2.2

(.....imports as before) public class Code extends JFrame implements GLEventListener { private int rendering Program; private int vao[ ] = new int[1]; } new declarations public Code() { (..... constructor as before) } public void display(GLAutoDrawable drawable) { GL4 gl = (GL4) GLContext.getCurrentGL(); gl.glUse Program(renderingProgram); gl.glDrawArrays(GL_POINTS, 0, 1); } public void init(GLAutoDrawable drawable) { GL4 gl = (GL4) GLContext.getCurrentGL(); rendering Program = createShader Program();