I'm currently reading an stl file with:
In my Stl file, each facet is described by three poitns and a normal:
facet normal 0.000000e+00 -0.000000e+00 -1.000000e+00
vertex 3.838308e-02 4.185656e-04 -9.486067e-02
vertex 3.838923e-02 4.216301e-04 -9.486067e-02
vertex 3.837746e-02 3.022011e-04 -9.486067e-02
This file was also exported by OpenCascade.
How could I read the normals of each facet too?