Problem understanding clock.getDelta() in useFrame() (Beginner Question)

[ChrisCrossCrash]

I'm having trouble using clock.getDelta() in useFrames(). It always gives me a value of 0 or 0.001, when I would expect it to return a value of around 0.017 at 60 FPS. Am I misunderstanding how this works?

Relevant documentation:

• Three JS Clock docs
• React Three Fiber Hooks docs
• React Three Fiber Basic Animations docs

Excerpt from my sandbox example:

useFrame(({ clock }) => {
  const dt = clock.getDelta();
  // 1000 ms / 60 FPS = 16.6 ms, so shouldn't this log a number
  // around 0.017? It logs 0 or 0.001 every time.
  console.log(dt);
});

Thanks so much for your help!

[drcmda]

useFrame((state, delta) => {
 ...

calling state.clock.getDelta() flushes the clock back to 0, that is how THREE.Clock works. this would not be scalable if you have multiple components. this is why useFrame gives you a delta which is valid for the current frame and accessible by all components.

[ChrisCrossCrash]

Thank you very much! I should have read the Hooks documentation more carefully.