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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

    Alan47

    Joined:
    Mar 5, 2011
    Posts:
    139
    Hi,

    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

    Olmi

    Joined:
    Nov 29, 2012
    Posts:
    657
    Hi,

    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

    imagining

    Joined:
    Dec 30, 2019
    Posts:
    1
    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
     
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