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…
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.
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.