apparence

This Repository Has Moved!

This repository has been moved to Codeberg in February 2026.

You’ll find it here: https://codeberg.org/rubenphilipp/apparence

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Description

Please note: This program is at an early stage of development. Thus, API changes are likely.

Overview

apparence (nicknamed apr) is a Common Lisp package aimed at working with (moving) images.

Have a look at the examples.

Installation

You can find detailed installation instructions here: install.org.

Performance

As some of the processes might be quite memory-consuming, it is recommended to adjust the dynamic heap size of SBCL, e.g.

sbcl --dynamic-space-size 8192
# this is setting the maximum heap size to 8192 MB

Compatibility

Tested with SBCL on MacOS and Linux (Ubuntu 22.04).

Tests

(asdf:test-system :apparence)

Note: Always run tests with a fresh freshly started lisp instance.

Dependencies

The major dependencies are:

Lisp

• alexandria
• imago
• cl-svg
• Common Music (cm)
• parse-float
• serapeum
• lparallel
• vgplot
• cl-pcg
• cl-ppcre
• cl-frugal-uuid
• easing
• slippery-chicken (optional)

Other

• inkscape (for svg to image conversion)