MathLib (ML)

ML is a cross-platform header-only SSE/AVX/NEON-accelerated math library, designed for computer graphics. It serves two goals:

accelerate performance using SSE/AVX/NEON intrinsics
be HLSL compatible and deliver functionality to both CPU and shader code without code duplication

Features:

compile-time optimization level specialization: SSE3 (and below), +SSE4, +AVX1, +AVX2 (or NEON on ARM via sse2neon)
int2, int3 and int4 types
uint2, uint3 and uint4 types
float2, float3, float4 and float4x4 types
double2, double3, double4 and double4x4 types
bool2, bool3 and bool4 types
overloaded operators
vector swizzling
common functions: all, any, sign, abs, floor, round, ceil, fmod, frac, min, max, clamp, saturate, lerp, step, smoothstep and linearstep
transcendental functions: sin, cos, tan, asin, acos, atan, atan2, sqrt, rsqrt, rcp, pow, log, log2, exp and exp2
data conversion and packing functionality - FP32, FP16, SNORM and UNORM (with any number of bits per component)
vectors and matrices
linear algebra miscellaneous functionality
projective math miscellaneous functionality
frustum & AABB primitives
random numbers generation
sorting

Important:

sizeof(int3/uint3/float3) == sizeof(float4) on CPU
sizeof(double3) == sizeof(double4) on CPU
using namespace std can lead to name collisions
inclusion of cmath and/or cstdlib (even implicitly) after ml.h leads to name collisions

Also includes ml.hlsli file which is a standalone HLSL math library usable in C++ code.

License

ML is licensed under the MIT License.