paulwratt/scumvm-agi-upscale

agi pic viewer and upscaler

agi-upscale

This is a tool written in Ruby to upscale old Sierra AGI game backgrounds. It was the basis for a short video I authored:

How classic Sierra game graphics worked (and an attempt to upscale them)

Examples

Before:

After:

Before:

After:

Before:

After:

Installlation

1. Check out the repo

2. Make sure you have ImageMagick installed.

3. Run bundle install to install dependencies

Usage

You need to supply it with a directory containing the DOS version of an AGI Sierra game, and the id of the picture you want to upscale.

Example:

$ ruby pic.rb kq2 3 3.png

That will render pic 3 from kings quest 2 at an upscaled resolution.

If you want to extract all backgrounds from a game you can do this, assuming output is an empty subdirectory for the output images.

$ ruby pic.rb kq2 all output

Credits

• Written by Robin Ward - aka @eviltrout.

• It would have been impossible with the ScummVM technical documentation and codebase as a reference.