FastC++: Coding Cpp Efficiently

In C++ it's very convenient to store array data using the std::vector from the STL library. On modern CPUs you can take advantage of ve...

The most common operation in 3D applications is to project 3D points to a 2D image, most often that is your computer screen. For that purpos...

In the previous two post, we showed you how to load one or two three-element float vectors using SSE intrinsics and a combination of 128-b...

A common operation for two 3D vectors is the cross product : |a.x| |b.x| | a.y * b.z - a.z * b.y | |a.y| X |b.y| = | a.z * b.x - a.x * ...

In this article we will show you how to manually unroll a loop in C++. Loop unrolling has performance advantages due to the reduced overhead...

The IEEE 754 floating point format defines the memory layout for the C++ float datatype. It consists of a one bit sign, the 8 bit exponent...

In the previous post we have shown how to load a single float3 vector into an SSE register. This required either one 64bit and one 32bit l...