Libanim is a C animation library, which can be used as a generic framework to add keyframe interpolation tracks for any single-valued or 3-vector parameters, or at a slightly higher level as a hierarchical PRS (position/rotation/scaling) animation node framework for 3D graphics programs.

Version 2 of libanim dropped the dependency to libvmath, and instead carries a copy of gph-cmath (https://github.com/jtsiomb/gph-cmath) internally. The API has been reworked to avoid forcing a dependency to any math library to the user program, relying on floats and float pointers instead, which can be aliased to any kind contiguous x,y,z vector and x,y,z,w quaternion, or simple arrays of floats. Matrix arguments are expected to be arrays of 16 contiguous floats, in OpenGL-compatible order.

Programs written for earlier versions of libanim, and using the high-level PRS interface in anim.h are not source-compatible, nor binary-compatible with libanim 2. Though in practice the API changes are minor, and porting should be straightforward. Programs using only the low-level keyframe tracks in track.h are unaffected by these changes.

Copyright (C) 2012-2018 John Tsiombikas nuclear@member.fsf.org

This program is free software. You may use, modify, and redistribute it under the terms of the GNU Lesser General Public License v3 or (at your option), any later version published by the Free Software Foundation. See COPYING and COPYING.LESSER for details.

To build and install libanim on UNIX, run the usual:

./configure
make
make install

See ./configure --help for a complete list of build-time options.

To cross-compile for windows with mingw-w64, try the following incantation:

./configure --prefix=/usr/i686-w64-mingw32
make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar sys=mingw
make install sys=mingw