Very slow Affine3f to Vector3f multiplication

Submitted by Nikolai

Assigned to Nobody

Link to original bugzilla bug (#1201)
Version: 3.3 (current stable)

Description

Eigen::Affine3f m;
1)
Eigen::Vector3f v(p[0], p[1], p[2]);
Eigen::Vector3f res = m*v;

2.          Eigen::Vector4f v(p[0], p[1], p[2], 1);  
            Eigen::Vector4f res = m.matrix()*v;  

First example 4x times slower than the second! Compiled in Visual Studio 2015 upd 2 with full optimization.

Blocking

#558 (closed)