Search Feedback

18
votes

Time.deltaTime With VSync Is Not Constant Causing Visual Jitter

Runtime

-

-

With VSync enabled (Unity Update matched to a 60Hz monitor) and low processor/graphics loading (no dropped frames) the Time.deltaTime should be a near constant 16.67ms.

However, if you measure Time.deltaTime you will see it varies drastically from 2ms to 30ms causing visual jitter... (with an average of 16.67ms). This issue occurs with a blank new application with a blank scene (Windows 10).

Thread for Discussion (Unity has reproduced the issue)
https://forum.unity.com/threads/time-deltatime-not-constant-vsync-camerafollow-and-jitter.430339/

Issue Report Here
https://fogbugz.unity3d.com/default.asp?977641_r0jbe37tl5p0h0sk

Your opinion counts

Help us make things better. Share your great idea for improving Unity or vote for other people’s.

Log in to post a new idea

Categories

All

(10490)

2D

(266)

Ads

(51)

AI & Navigation

(90)

Analytics

(118)

Animation

(376)

Asset Store

(283)

Asset Store Publisher

(2)

Assets

(514)

Audio

(173)

Cloud Build

(128)

Collaborate

(46)

Docs & Tutorials

(225)

Editor

(2341)

Everyplay

(13)

Game Performance Reporting

(17)

General

(1270)

Graphics

(840)

GUI

(408)

Input

(159)

Licensing

(85)

Networking

(180)

Physics

(371)

Platforms

(432)

Profiling & Optimization

(78)

Runtime

(175)

Scripting

(1117)

Terrain

(165)

WebGL

(140)