added mesh rendering

public/physics_gen.h

@@ -60,6 +60,8 @@ struct px_cast_result px_box_cast(struct funnyphysics *px_world,
                                   struct px_vec3 vel,
                                   float time);
 
+void px_fixedbody(struct funnyphysics *px_world, Collider *collider);
+
 void px_frame(struct funnyphysics *px_world, float delta);
 
 struct px_matrix px_getmatrix(struct funnyphysics *px_world, RigidBodyHandle *body);