diff --git a/src/Dodge/Render/Walls.hs b/src/Dodge/Render/Walls.hs
index 48bcb0449..d82ce2058 100644
--- a/src/Dodge/Render/Walls.hs
+++ b/src/Dodge/Render/Walls.hs
@@ -7,9 +7,9 @@ import Control.Lens
 import Dodge.Base.Wall
 import Dodge.Data.World
 import Dodge.Wall.Draw
-import Dodge.Zoning.Base
-import Dodge.Zoning.Wall
-import Dodge.Zoning.World
+--import Dodge.Zoning.Base
+--import Dodge.Zoning.Wall
+--import Dodge.Zoning.World
 import Geometry
 import ShapePicture
 
@@ -25,8 +25,9 @@ wallsToDraw w =
                 <*> L.prefilter wlSeeThroughDraw (L.premap f L.list)
                 <*> L.premap getWallSPic L.mconcat
             )
-            (wlsFromIXs w $ zonesExtract (w ^. wlZoning) $ zoneOfSight wlZoneSize cam)
-    cam = w ^. cWorld . camPos
+            (w ^. cWorld . lWorld . walls)
+--            (wlsFromIXs w $ zonesExtract (w ^. wlZoning) $ zoneOfSight wlZoneSize cam)
+--    cam = w ^. cWorld . camPos
 
 --wallsToDraw
 --    :: World
diff --git a/src/Loop.hs b/src/Loop.hs
index 7633957ee..e02a6661f 100644
--- a/src/Loop.hs
+++ b/src/Loop.hs
@@ -231,6 +231,7 @@ doConLoop' ::
     ---- immediately
     (world -> ConcurrentEffect world) ->
     -- | simulation update. Allows for side effects such as rendering.
+    -- passes the window to allow buffer swapping at different times
     (world -> IO world) ->
     -- | SDL Event handling. Note no side effects.
     (world -> Event -> world) ->
diff --git a/src/Preload/Render.hs b/src/Preload/Render.hs
index abc404e34..3235a3e2f 100644
--- a/src/Preload/Render.hs
+++ b/src/Preload/Render.hs
@@ -141,6 +141,7 @@ preloadRender = do
     -- texture shaders, no textures attached
     fsShad <- makeShaderSized "texture/simple" [vert, frag] [2, 2] 4 ETriangleStrip
     -- note we directly poke the shader vertex data here
+    -- could possibly use an indirect draw call
     pokeArray (shadVBOptr fsShad) $ concat cornerList
 
     bloomBlurShad <- makeShaderUsingShaderVAO "texture/bloomBlur" [vert, frag] ETriangleStrip fsShad
diff --git a/src/Render.hs b/src/Render.hs
index dd5fe6bdb..c5ac532e3 100644
--- a/src/Render.hs
+++ b/src/Render.hs
@@ -30,6 +30,8 @@ divideSize :: Int -> Size -> Size
 divideSize i (Size x y) = Size (div x $ fromIntegral i) (div y $ fromIntegral i)
 
 -- | Determine where light is shining in the world.
+-- think of the produced texture as showing what RGB values should be "taken
+-- away" from the shape colors.
 createLightMap ::
     RenderData ->
     [(Point3, Float, Point3)] -> -- Lights
@@ -55,6 +57,7 @@ createLightMap pdata lightPoints nWalls nSils nCaps drawObjShads toPos drawCPUSh
     -- we will not be changing that here
     depthMask $= Disabled
     -- clearColor is specified differently in preloadRender
+    -- the colors are inverted
     clearColor $= Color4 1 1 1 1
     clear [ColorBuffer]
     -- for each of the lights: