private void initProgram(){
  glUseProgram(this.program);
  vec3ArrayUniform=glGetUniformLocation(this.program,"cols");
  chosenUniform=glGetUniformLocation(this.program,"chosen");
  glUseProgram(0);
}

private void initProgram ( ) { glUseProgram ( this . program ) ; vec3ArrayUniform = glGetUniformLocation ( this . program , "cols" ) ; chosenUniform = glGetUniformLocation ( this . program , "chosen" ) ; glUseProgram ( 0 ) ; }
initialize the shader program .
