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HDRP: Very high GPU consumtion in idle editor

Discussion in 'High Definition Render Pipeline' started by Alan47, Dec 4, 2019.

  1. Alan47


    Mar 5, 2011

    I've noticed that the Unity editor causes very high GPU usage (between 60% and 90%) in the following scenario:

    - HDRP render pipeline
    - Editor window open (game not running)
    - Editor completely idle (no 3d movement)
    - Visual effects stack active
    - No lightmapping or other background processes going on.

    This is odd, because nothing is happening in the scene, it's literally a static image.

    What's also interesting: if I turn off "Animated materials", the GPU usage drops to zero, even though I don't even have any animated materials in my scene...

    Anybody else bumped into this?
    imagining and Olmi like this.
  2. Olmi


    Nov 29, 2012

    I've noticed similar behavior (Unity 2019.3, HDRP 7.1.6). If I have my prototype content here on screen (simplish grey-boxing stuff) often the GPU usage is around 60-75%. Editor view, camera and Inspector visible, nothing happening and I got automatic lightmap baking etc off.

    Now that you mentioned animated materials option, I tried it and GPU usage drops. Good find, as I don't want to wear out my hardware for no good reason.
  3. imagining


    Dec 30, 2019
    Thank you! I was running into the same problem, it was often at 100% GPU usage and it was driving me nuts. Turning off animated materials in the scene view is fixed it.

    Screen Shot 2019-12-30 at 1.55.25 PM.png