Processing graphics output window is too small to see anything and it doesn't have any resize or maximise controls

[Ian-Grant]

Most appropriate sub-area of Processing 4?

Core/Environment/Rendering

Processing version

4.4.1

Operating system

Ubuntu 24.04

Steps to reproduce this

1. Install the Processing Snap package using the Ubuntu 24.04 App Center (see screenshot)
2. Open the Processing app.
3. Type in the example code from the tutorial
4. Run the example

snippet

background(216,225,149);

stroke(255,0,0);
fill(0,0,255);
rect(250,200,100,75);

Additional context

Would you like to work on the issue?

No, I can't help, I am new to this program and don't know Java and the JDK

[Ian-Grant]

I found the problem, it's because the examples in the tutorial skip the canvas size call and the whole setup()/draw() definition. It tells you about this in part 4 of the tutorial.

[SableRaf]

This is the intended behavior, mostly for historical reasons—Processing's default behavior goes back to its origins in the Design By Numbers (DBN) project, which used a 100 by 100 pixels default canvas. That made sense at the time, but it's admittedly not ideal on modern displays.

We're considering updating the default size in a future release to be more practical out of the box.

Out of curiosity, which tutorial were you following? It would help us understand where the confusion came from and whether we can improve the documentation.

[Ian-Grant]

Thanks for replying.

I was just following the tutorial at https://hello.processing.org, but it took me a while to realise that the IDE on those web pages is actually interactive. I thought I was watching a video and that I needed to have the client open on my desktop to try the examples!!