Move pair to V2

src/Render.hs

@@ -162,6 +162,8 @@ renderShadows cam cfig shadrendertype nWalls nSils nCaps positiontexture normalt
         -- note that the stencil shadows rely on the depth buffer
         let d = rad * cam ^. camZoom
             V2 x' y' = worldPosToResOffset cfig cam (V2 x y) 
+        -- this is probably too strict, it will be possible for high up lights
+        -- to have some of their light cast high up cut off
         glScissor (round (x'-d)) (round (y'-d)) (round $ 2 *d) (round $ 2* d)
         glDepthFunc GL_LESS
         glColorMask GL_FALSE GL_FALSE GL_FALSE GL_FALSE