# fullScreen(P3D) not fullscreening on Windows

**URL:** <https://discourse.processing.org/t/fullscreen-p3d-not-fullscreening-on-windows/49065>\
**Category:** Coding Questions\
**Created:** [July 28, 2026, 12:16pm UTC](https://discourse.processing.org/t/fullscreen-p3d-not-fullscreening-on-windows/49065 "2026-07-28T12:16:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [July 28, 2026, 2:26pm UTC](https://discourse.processing.org/t/fullscreen-p3d-not-fullscreening-on-windows/49065/2 "2026-07-28T14:26:52Z")

</div>

Hello @cjkcjk,

Welcome to the forum.

This may help:  
_[Renderers (and Windows scaling) - #3 by glv](https://discourse.processing.org/t/renderers-and-windows-scaling/47524/3)_

Environment:  
W11  
Processing 4.5.6  
Windows scaling set to 125%

I tried this (from post above) with it seemed to work with 1.00 now in W11!

```auto
static 
  {
  // Forces 1:1 pixel rendering by disabling OS-level DPI scaling  
  System.setProperty("sun.java2d.uiScale", "1.00"); 
  }

```

Give it a try and report back.

Also check out the **Related posts** at the bottom of the topics!  
Scrutinize these topics since there are lots of variables to consider such as OS, Windows settings (scaling is one), Processing versions, etc.  
Don’t get lost in there!

I get this on Processing 4.5.6 even with a blank sketch and ignore this:

 ![image](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/3X/5/d/5d61cf049c4d6676e7e2aa0e6cb9eba1abd8b4f7.png)

`:)`

---

_[View the full topic](https://discourse.processing.org/t/fullscreen-p3d-not-fullscreening-on-windows/49065)._