+#if 0
+ particle_spawn( &particles_grind, localplayer.rb.co,
+ (v3f){vg_randf64()*2.0f,vg_randf64()*3.0f,vg_randf64()*2.0f},
+ vg_randf64(), 0xff0000ff );
+#endif
+ particle_system_update( &particles_grind, vg.time_delta );
+ //particle_system_debug( &particles_grind );
+ particle_system_prerender( &particles_grind );
+ particle_system_render( &particles_grind, &skaterift.cam );
+