Switch to using transformation matrices

include/camera/camera.h

@@ -9,7 +9,7 @@ typedef struct {
   vec3f_t rotation;
 } camera_t;
 
-vec2i_t project_point(vec3f_t point, const window_t *wnd,
-                      const camera_t *camera, vec3f_t viewport);
+mat4x4f_t inverse_camera_translation_matrix(const camera_t *camera);
+mat4x4f_t inverse_camera_rotation_matrix(const camera_t *camera);
 
 #endif // !CAMERA_H