diff --git a/src/pillar.rs b/src/pillar.rs
index 1a07f8c..cd9f8cb 100644
--- a/src/pillar.rs
+++ b/src/pillar.rs
@@ -1,9 +1,11 @@
-use bevy::prelude::*;
+use bevy::{pbr::CubemapVisibleEntities, prelude::*, render::primitives::CubemapFrusta};
 
 use crate::{camera::MouseCoords, player::LightFriends};
 
 const SIZE: f32 = 10.0;
 const HEIGHT: f32 = 20.0;
+/// duration of pillar activation, in secs
+const PILLAR_DURATION: f32 = 30.0;
 
 #[derive(Component)]
 pub struct UnlitPillar;
@@ -29,6 +31,8 @@ pub fn spawn_pillar(
             transform: Transform::from_translation(pos),
             ..Default::default()
         })
+        .insert(CubemapFrusta::default())
+        .insert(CubemapVisibleEntities::default())
         .insert(UnlitPillar);
 }
 
@@ -125,8 +129,7 @@ pub fn decrease_pillar_strength(
     let t = time.seconds_since_startup();
     for (entity, mut light, handle, pillar) in query.iter_mut() {
         let d = t - pillar.created_at;
-        const DUR: f32 = 10.0;
-        let i = (DUR - d as f32) / DUR;
+        let i = (PILLAR_DURATION - d as f32) / PILLAR_DURATION;
 
         if i < 0.0 {
             // deactivate pillar