lib-mathutils

A C++ math library heavily optimized for real time applications such as games.

Status: Work in progress!

Features:

• Cached trigonometric functions (1MB of RAM, 99.9999% precision)
• Vector and matrix classes (Vec2, Vec3, Mat3, Mat4)
• Compile-time selection between "fast" and "precise" modes (read below)
• "Fast inverse square root" hack
• Operates on 32-bit floats by default

Planned features:

• Big integers (128 and 256 bits)
• Big float (128 bit)
• SIMD optimizations

"Precise" and "Fast" modes

The default compilation mode is "fast". To enable the "precise" mode, you have to define the "PRECISE" macro in your compilation command.

Example: (G++ and Clang)

-D PRECISE

The precise mode disables caching of the trig functions as well as the fast_inv_sqrt hack. It also switches to using 64bit floats instead of the 32bit ones.