#ifndef TRANSFORMATION_H #define TRANSFORMATION_H #include extern void lookAt(GLfloat* out, GLfloat* eye, GLfloat* look, GLfloat* up); extern void perspectiveProjection(GLfloat* out, GLfloat near, GLfloat far); extern void normalisedDeviceCoordinates(GLfloat* out, GLfloat r, GLfloat l, GLfloat t, GLfloat b, GLfloat n, GLfloat f); extern void normalisedPerspective(GLfloat* out, GLfloat r, GLfloat l, GLfloat t, GLfloat b, GLfloat n, GLfloat f); #endif