godotengine / godotengine/godot

Godot 4 3d stutter in exclusive fullscreen mode

Open
#90,733 7 comments 0 reactions 0 assignees View on GitHub
bug needs testing performance topic:rendering
Dominant language
C++
Stars
117k
Forks
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PR merge metrics
PR metrics pending

Description

### Tested versions

- Tested in godot stable 4.2.1

### System information

Windows 11, Ryzen 5600x, Radeon RX6750XT, 165hz 1440p monitor, Vulkan, Forward+, Godot 4.2.1

### Issue description

Godot 4 seems to stutter pretty consistently in exclusive fullscreen mode. I first noticed this issue in a project I was working on, where it still happens around half the time I run it or more, making my project unplayable, but it also appears in [this gameplay video of buckshot roulette](https://www.youtube.com/watch?v=zaWPFbX7Q8A&t=289s) most noticable at the 4:40 mark when picking up the shotgun. I'm currently making a project now and this issue was happening very bad in my loading screen and test scene, until I stopped using exclusive fullscreen mode. my project runs fine now, just with an annoying border which has been addressed here before.

### Steps to reproduce

Make a new project, add some moving object, and enable exclusive fullscreen. May need to have some meshes in scene to increase gpu load to see issue

### Minimal reproduction project (MRP)

N/A

Contributor guide

Open the contributing guide

Research direction

No files, tests, or entry points are identified. First reproduce the stutter in a new Godot project on Windows 11 with Vulkan Forward+, a moving object, and exclusive fullscreen; compare it with non-exclusive fullscreen and confirm whether added scene meshes increase the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, godot
Domain
game-dev, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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