DL 1 is version 1.0 from an unknown source.

DL 2 is the 2.5 demo that came with Codewarrior 11 Gold.

DL 3 is the time-limited version 2.1 that came with Codewarrior 8
Bronze: "These libraries allow you to test all features of ACL, but
ACL will terminate your application after 10 minuts."

> ? A High Performance, Easy To Use, Multimedia C++ Framework
>
> ACL is the easiest and fastest way to build high performance
> multimedia applications and games on the Macintosh. It's more than
> likely to halve the development time it takes to get a product to
> market. It includes more than 800 functions and more than 100,000
> lines of performance-tuned C++ code. Here's some highlights of its
> features: ? A power-packed [animation engine][1] ? A full-featured
> framework for creating multimedia oriented applications. Includes
> support for:
>  ? Full screen displays
>  ? Controls
>  ? Menus
>  ? Keyboard Actions
>  ? Mouse Actions
>  ? Windows
>  ? Commands
>  ? Progress Indicators
>  ? Required AppleEvents
>  ? Tight integration with existing frameworks such as PowerPlant(tm)
>  ? and more...
> ---

? [Pacific Media WorX - ACL homepage][2]


> THE ANIMATION ENGINE: ? Built-in double-buffering that eliminates
> display flickering
>  ? Fast and intelligent refreshing
>  ? Optional optimized blitter for 8 and 16 bit displays. This
> blitter is more that 2x faster than CopyBits and supports both the
> PowerPC and 68k microprocessors
>  ? Animated objects may contain multiple sequences of frames.
> Sequences can be dynamically altered at any point in a sequence or
> on a frame by frame basis
>  ? Speed and accelerated motion can be handled transparently
>  ? Intelligent lifelike motion along curves
>  ? Blit and forget sprites! Animated objects may be arbitrarily
> grouped. For example, a character which handles a sword with an
> animated light at the end may be grouped, structured, and moved as a
> single object even though it may contain dozens of independent
> sprites. When the character picks up an object, simply add it to the
> group and forget about it - everything is handled automatically!
>  ? Intelligent visual sorting. Tricky issues such as which object
> lies in the foreground and background of a scene can be handled by
> using fixed values supplied by you or automatically
>  ? Fast collision detection between animated objects at pixel
> precision
>  ? Intelligent 'mask' objects which can mask other objects in a
> scene. Masks may contain complex geometry
>  ? Command chains which can be linked to an animation object (for
> example: go to (10/10), change current sequence, go to (20/20),
> restart).
>  ? Vector objects
> ---

? [Pacitic Media WorX - Animation Engine][1]


>
>     Software Title: Animation Class Library
>     Version: 2.5
>     Author(s): Pacific Media WorX
>
>                Playground
>
>     Author(s) Contact Info: Playground
>                             Rue de la Faucille 2
>                             CH-1201 Geneva, Switzerland
>                             center at playground dot mcnet dot ch
>                             100124,1546 (CompuServe)
>     License: Probably proprietary
>     Platform: Apple Macintosh (Classic OS)
>     Description: According to the Animation Class Library (ACL)
> version
>     2.5 documentation, which was written by , the ACL is a
>     software library implemented as a set of C++ classes. The ACL
>     incorporates an animation engine which is designed to facilitate
>     interactive animations and which includes such features as
> support for
>     bitmap and vector-based graphical objects, multiple color
> palettes and
>     fade effects, and collision detection with custom masks. The ACL
> also
>     incorporates application framework classes and support for
> multi-
>     channel sound playback.
>     Notes: The documentation for version 2.5 of the ACL along with
> two
>     sample applications was included on the CodeWarrior 10 Gold
> Tools
>     CD-ROM from Metrowerks, Inc.

? [Obscure Software Titles, Richard Green][3]


Compatibility
Architecture: 68k PPC

68k + PowerPC (also available for Win95)

  [1]: https://web.archive.org/web/19980423222304fw_/http://pacmedia.com/acl03.htm
  [2]: https://web.archive.org/web/19980423221649fw_/http://pacmedia.com/aclindx.htm
  [3]: https://www.thedoorintomorning.com/obscure-software/