#art #draw #image #passpartout

bin+lib passpartout_printer

Application for drawing images into the game Passpartout: The Starving Artist

2 stable releases

1.1.1 Jul 13, 2022
1.0.0 Apr 3, 2018

#72 in Games


829 lines

Passpartout Printer

Draws images into the game Passpartout: The Starving Artist.

Drawing our favorite crab. Original draw time 7 minutes.

This application has one of two main operating modes:

  • Image Drawing Mode: takes an input image and draws it to the easel in-game.

  • Shape Drawing Mode: takes a list of coordinates and draws that shape in-game.


On Linux, you may need to install the libxdo development libraries.

On Ubuntu:

apt install libxdo-dev

On Fedora:

dnf install libxdo-devel

Downloading and Compiling

The easiest way to get passpartout_printer installed is to use cargo install:

cargo install passpartout_printer

If you have a need to build from source, you can build it as follows:

git clone https://github.com/ostrosco/passpartout_printer.git
cd passpartout_printer
cargo build --release


Before the application can draw to the easel in-game, a configuration file needs to be created with the screen coordinates of in-game elements. To do this:

  • Start Passpartout.
  • Select Endless Mode in the main menu. Pick any of the unlocked scenarios.
  • Click on the easel to bring up the drawing interface.
  • Run cargo run --release -- --configure to start the configuration process.

A prompt will appear in the console to walk through the elements to click to configure the program. Upon completion, a "coords.json" file will be created in the top-level directory.

Configuration Tips

  • It's better to click on the white part of the easel than along the edge. If a click is too far off the easel, some line draws starting or ending near the edges will fail.
  • Try to click on the direct center of the colors.


Passpartout Printer 1.1.0

    passpartout_printer [FLAGS] [OPTIONS]

        --configure        Configures the application with coordinates in-game.
        --enable-dither    Enables dithering to reduce color banding but increase draw time
    -h, --help             Prints help information
        --no-scale         Disable scaling of the input image.
    -V, --version          Prints version information

    -i, --image <IMAGE>        Input image to use
    -w, --mouse-wait <WAIT>    Specify the time to wait between mouse actions

Pressing Left Control + Space will pause or resume printing.

Deciding on a Wait Time

The speed in which passpartout_printer can draw to the easel is limited by the frame rate in-game. The default wait time between mouse operations is 7ms which assumes a frame rate of around 142 FPS. To measure your in-game frame rate, ensure that the Steam overlay is enabled and that the In-Game FPS Counter is enabled. Initial observations have shown that the FPS can drop between 5% to 15% when drawing, so it's best to go a little slower than the max FPS. Wait times of 5ms or less seem to cause severe input errors regardless of FPS.

Window to enable the FPS counter


Dithering can greatly improve the image quality at a significant performance tradeoff by reducing color banding. Expect dithering to increase the draw time by 2 to 4 times depending on the complexity of the input image.

Without Dithering With Dithering
Draw Time: 1 hour at 7ms wait time Draw Time: 3.5 hours at 7ms wait time


There are examples in the project that demonstrate the Shape Drawing Mode of the application. To run them:

cargo run --release --example draw_house

In-Game Screenshots

Graffiti - Artist Unknown. Dithering disabled. 1 hour draw time at 6ms wait.

Lotus Pond - Jessica T. Hamilton. Dithering enabled. 2 hour 45 minute draw time at 6ms wait.

Mona Lisa - Leonardo da Vinci. Dithering enabled. 3 hour 30 minute draw time at 7ms wait.


~209K SLoC