uniform2f method
Implementation
void uniform2f(UniformLocation location, double x, double y){
  startCheck('uniform2f');
  gl.glUniform2f(location.id, x, y);
  checkError('uniform2f');
}void uniform2f(UniformLocation location, double x, double y){
  startCheck('uniform2f');
  gl.glUniform2f(location.id, x, y);
  checkError('uniform2f');
}