Light explode when camera is switched

Unity Engine
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1

Is it a bug or did I set something wrong?
I want to know the keyword for this

(HDRP 2021.3.14f1)
Occurs when HDRP Quality is a specific setting
I’m not sure exactly which parameters are causing the problem.
I attached TEST_Quality.zip

reproduction of the problem in the HDRP demo scene
When the camera is switched,
the light source shines so brightly in a very short time that it ruins the screen.
8652594--1164516--cm.gif

how to reproduce

8652594--1164519--upload_2022-12-2_4-52-5.png

Create two Virtual Cameras
Camera Blends style is cut.
enter playmode
Set Active On/Off the vCam object to switch the camera
There’s a strange flashes occurs

It can be reproduced with a normal camera.
However, additional scripting is needed for an immediate transition between cameras.

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I thought of this issue as a cinemachine issue,
so I wrote it on the cinemachine forum, and some tests and experiences have confirmed
that it is reproduced on a normal camera regardless of the cinemachine
So I think it’s a problem with HDRP and write it here again.
I want to delete the wrong article on another forum, but I don’t think I can delete it

2

TEST_Quality.zip

8652657–1164555–TEST_Quality.zip (2.89 KB)

3

Thanks for the report, replied in the original thread: Strange Flickering occurs when virtual camera is switched

1 Like
4

Is this applied to 2021.3.17f1?
I tried to find the information in the release note, but I couldn’t find it well…
Is there any way to see UUM-XXXXX cases without links?

5

@SebLagarde

Is this solved in the latest version?
I still see a similar issue in the latest version.

  • 2021 LTS
  • 2022.2.8f1

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8881824--1213491--2.gif
It’s a very short moment, but when i swap the volume, a flash occurs in between.
In fact, this is a very big problem in certain situations.
If player switch scenes or change the player’s position, the entire screen pops brightly.

6

This bug still exists on version 2022.3. It also involves the Global Illumination Preprocessing. Do we have a patch on this?

7

Additional information
https://discussions.unity.com/t/901821/4

It was a while ago, so maybe I didn’t remember it properly,
There seems to be some improvement, but no complete solution.
I think somewhere in Issue Tracker or Bug Report, they closed this issue as a non-important issue. :frowning:

1 Like