extern mplane_t frustum[4];
extern int c_alias_polys, c_light_polys, c_faces, c_nodes, c_leafs, c_models, c_bmodels, c_sprites, c_particles, c_dlights;
+// forces all rendering to draw triangle outlines
+extern cvar_t r_showtris;
+extern int r_showtrispass;
//
// view origin