2.2.2*.c used as base for 2.2.3_the_matrix_has_you.c.
2.2.2.frag copied to 2.2.3.frag.
2.2.3.vert shader created.
References in 2.2.3*.c changed from 2.2.2* to 2.2.3*.
Perspective matrix values and calculations added.
Call for location of perspective_matrix_uniform added.