diff --git a/src/graphics/render.nim b/src/graphics/render.nim
index d580959..fbb0e5e 100644
--- a/src/graphics/render.nim
+++ b/src/graphics/render.nim
@@ -192,7 +192,24 @@ proc draw_all*(self: RenderManager) =
                 continue
             scene.update_all_matrices()
             scene.update_lights()
-    # TODO: render probes required by cameras of enabled screens
+            # TODO: move this
+            var update_probe_ubo = false
+            for probe in scene.cubemap_probes:
+                let upd = case probe.update_strategy:
+                    of UpdateNever: false
+                    of UpdateOnFirstUse:
+                        # TODO: detect when relevant objects are fully loaded
+                        # and also when anything that affects it is visible and
+                        # nearby
+                        not probe.used
+                    of UpdateAlways: true
+                if upd:
+                    probe.render_cubemap(true)
+                    probe.used = true
+                    update_probe_ubo = true
+            if update_probe_ubo:
+                scene.cubemap_UBO.update()
+
     # TODO: render shadows required by cameras of enabled screens
     for screen in self.engine.screens:
         if not screen.enabled:
diff --git a/src/loaders/blend.nim b/src/loaders/blend.nim
index c0cea54..67591a9 100644
--- a/src/loaders/blend.nim
+++ b/src/loaders/blend.nim
@@ -584,13 +584,18 @@ method loadScene*(self: BlendLoader, name: string="", scene: Scene=nil, callback
             if scn["id"]["name"].cstr == idname.cstring:
                 let node = scn
                 var scene = scene
+                let was_first_scene = self.engine.scenes.len == 0
                 if scene == nil:
                     scene = self.engine.new_scene(name=name)
                 self.loadSceneImpl(node, scene)
                 callback(scene)
+                # TODO: when loading is async, move this stuff after loading has
+                # finished
+                if was_first_scene and not scene.enabled:
+                    echo "Warning: Your scene is not enabled, use 'scene.enable_render()' or 'scene.enable_all()'"
+                scene.render_all_cubemaps(true)
                 return
         assert false, &"Scene {name} not found"
 
 proc debug_dump*(self: BlendLoader) =
-    self.blend_file.debug_dump
-
+    self.blend_file.debug_dump
\ No newline at end of file
diff --git a/src/objects/cubemap_probe.nim b/src/objects/cubemap_probe.nim
index 340faee..1f0196f 100644
--- a/src/objects/cubemap_probe.nim
+++ b/src/objects/cubemap_probe.nim
@@ -96,6 +96,7 @@ proc newCubemapProbe*(engine: MyouEngine, name: string="camera", scene: Scene =
         parallax_distance
     else:
         influence_distance
+    self.update_strategy = UpdateOnFirstUse
     return self
 
 
diff --git a/src/scene.nim b/src/scene.nim
index b689804..92f0342 100644
--- a/src/scene.nim
+++ b/src/scene.nim
@@ -351,6 +351,17 @@ proc destroy*(self: Scene) =
     self.engine.scenes.del(self.name)
     return
 
+proc enable_render*(self: Scene) =
+    self.enabled = true
+
+proc enable_physics*(self: Scene) =
+    if self.world != nil:
+        self.world.enabled = true
+
+proc enable_all*(self: Scene) =
+    self.enable_render()
+    self.enable_physics()
+
 proc new_gameobject*(self: Scene, name: string): GameObject =
     return self.engine.new_gameobject(name=name, scene=self)
 
@@ -528,10 +539,6 @@ proc get_lighting_code*(self: Scene): string =
     code.add staticOrDebugRead "shadows/simple_shadow.glsl"
     return code.join "\n"
 
-
-# template as_float_array(x: untyped): untyped =
-#     cast[array[sizeof(typeof(x)) div 4, float]](x)
-
 proc update_lights*(self: Scene) =
     if self.lighting_UBOs.len == 0:
         return
diff --git a/src/types.nim b/src/types.nim
index e3bb9bf..1872e40 100644
--- a/src/types.nim
+++ b/src/types.nim
@@ -694,6 +694,11 @@ type
     
     # cubemap_probe.nim
 
+    ProbeUpdateStrategy* = enum
+        UpdateNever
+        UpdateOnFirstUse
+        UpdateAlways
+
     ProbeInfluenceType* = enum
         SphereInfluence
         BoxInfluence
@@ -715,6 +720,8 @@ type
         intensity*: float32
         clipping_start*: float32
         clipping_end*: float32
+        update_strategy*: ProbeUpdateStrategy
+        used*: bool
     
     # NOTE: layout must match struct CubemapInfo in scene.nim
     CubemapProbeUniform* = object
@@ -761,6 +768,8 @@ type
         parent_object*: GameObject
 
     World* = ref object of RootObj
+        enabled*: bool
+    
     DebugDraw* = ref object of RootObj
     Body* = ref object
 
@@ -824,12 +833,15 @@ type BlendLoader* = ref object of Loader
     cached_materials*: Table[(FNode, string, bool),
         (string, seq[Varying], OrderedTable[string, string], OrderedTable[string, TexturePixels])] ## private
     resource*: LoadableResource
-
-template enqueue*(self: RenderManager, fun: proc()) =
-    if self.initialized:
+    
+template enqueue*(renderer: RenderManager, fun: proc()) =
+    ## Run a proc after the renderer has been initialized.
+    ## 
+    ## If it was already initialized, it runs it immediately.
+    if renderer.initialized:
         fun()
     else:
-        self.queue.add fun
+        renderer.queue.add fun
 
 when not defined(release):
     from sugar import dump