diff --git a/src/renderer/main.lua b/src/renderer/main.lua
index 6f564d8..20a74e9 100644
--- a/src/renderer/main.lua
+++ b/src/renderer/main.lua
@@ -6,8 +6,8 @@ local text = ""
 --Set up the canvas.
 assert( lg.getCanvasFormats( false ).stencil8, "Error: 8-bit stencil buffers not supported on this system." )
 local stencil = love.graphics.newCanvas(
-  25,
-  50,
+  lg.getWidth(),
+  lg.getHeight(),
   {
     type = "2d",
     format = "stencil8",
@@ -35,8 +35,9 @@ end
 
 function love.draw()
   lg.setCanvas{{canvas}, depthstencil = {stencil}}
-  lg.setColor( 1,1,1,1 )
-  lg.rectangle( "fill", 0, 0, 400, 400 )
+  lg.clear()
+  lg.setColor( 1,1,1,0.3 )
+  lg.rectangle( "fill", time * 15.0 , 0, 400, 400 )
   lg.setCanvas()
   lg.draw( canvas )
 end