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Unity UI is slow on the hololens

Discussion in 'Windows Mixed Reality' started by GameDevCouple_I, Jul 4, 2019.

  1. GameDevCouple_I

    GameDevCouple_I

    Joined:
    Oct 5, 2013
    Posts:
    2,218
    Unity UI is extremely slow on the hololens, with a few basic panels causing a drop from 60fps to 40fps when shown. Nothing else has as big an impact as the UI, and its shocking that it would eat up 33% of our framerate when shown.

    Does anyone have any tips or recommendations on how to get UI to not be so slow on hololens? It seems silly that something as basic and in-built as UI is essentially unusable.
     
  2. Unity_Wesley

    Unity_Wesley

    Unity Technologies

    Joined:
    Sep 17, 2015
    Posts:
    557
    Hello,

    I haven't seen anything like this on a HoloLens of late, can you tell me if you are using the new UI system from a unity package?

    Thank you,
    Wesley
     
  3. GreatMightyMoe

    GreatMightyMoe

    Joined:
    Jul 20, 2016
    Posts:
    7
    I am having the same issue on the HoloLens. I have a relatively simple canvas with a dropdown and a bit of text. The canvas is in world space and parented to an empty object.
    I am using the classic UI with normal components - not TextMeshPro.
    It looks really choppy if you move your head.
     
  4. joejo

    joejo

    Unity Technologies

    Joined:
    May 26, 2016
    Posts:
    567
    What version of Unity are you using?
     
  5. GreatMightyMoe

    GreatMightyMoe

    Joined:
    Jul 20, 2016
    Posts:
    7
    2019.1.3f1

    Also I just noticed that 3d objects attached to the main camera stutter really hard. (I attached a normal sphere to the camera to make a simple gaze pointer)
     
  6. joejo

    joejo

    Unity Technologies

    Joined:
    May 26, 2016
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    567
    Please try latest 2019.2. A number of fixed have gone on on that release specifically around jitter.