CODEWITHSUNDEEP
javascript
Pris0n
Pris0n

Reputation: 350

Measure elapsed time requestAnimFrame

How can I calculate the elapsed time the render function needs to execute once? I would like to use this time for other functions later. Currently I just receive time_ elapsed = 0 .

function render() {
    window.requestAnimFrame(render, canvas);

    time_start.getTime();
    // do rendering
    scene.render(); //here are my draw calls

    time_end.getTime();
    time_ elapsed = time_end - time_start;
    console.log(time_ elapsed);
}

Upvotes: 1

Views: 209

Answers (1)

user128511
user128511

Reputation:

Here's a typical way to do it.

function currentTimeInSeconds() {
  return Date.now() * 0.001;
}

var then = currentTimeInSeconds() {
function render() {
  var now = currentTimeInSeconds();
  var elapsedTimeInSeconds = now - then;
  then = now;

  scene.render();

  requestAnimationFrame(render);
}
render();

Upvotes: 1

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