Imath

C++/Python lib of 2D/3D vector, matrix, math ops for computer graphics

Imath is a basic, light-weight, and efficient C++ representation of 2D and 3D vectors and matrices and other simple but useful mathematical objects, functions, and data types common in computer graphics applications, including the "half" 16-bit floating-point type. Imath also includes optional python bindings for all types and functions, including optimized implementations of vector and matrix arrays. Imath was originally developed at Industrial Light & Magic in the early 2000's and was originally distributed as open source as a part of the OpenEXR project. Imath continues to be maintained as a sub-project of OpenEXR, which is now a project of the Academy Software Foundation. See the OpenEXR project's GOVERNANCE.md for more information about how the project operates.