isolated error. Map Rendering is missing Depth-Comp

- refactored a bit

src/Main.hs

@@ -308,11 +308,13 @@ adjustWindow = do
                         textureFilter  Texture2D GL.$= ((Linear', Nothing), Linear')
                         texImage2D Texture2D GL.NoProxy 0 RGBA8 (GL.TextureSize2D fbCWidth fbCHeight) 0
                                                 (GL.PixelData GL.RGBA GL.UnsignedByte ptr)
+                        textureBinding Texture2D GL.$= Nothing
                         -- MAP
                         textureBinding Texture2D GL.$= Just maptexid
                         textureFilter  Texture2D GL.$= ((Linear', Nothing), Linear')
                         texImage2D Texture2D GL.NoProxy 0 RGBA8 (GL.TextureSize2D fbCWidth fbCHeight) 0
                                                 (GL.PixelData GL.RGBA GL.UnsignedByte ptr)
+                        textureBinding Texture2D GL.$= Nothing
                    allocaBytes (2048*2048) $ \ptr -> do
                         let smapdata = genColorData (2048*2048) [0]
                         pokeArray ptr smapdata
@@ -320,6 +322,7 @@ adjustWindow = do
                         textureFilter  Texture2D GL.$= ((Nearest,Nothing), Nearest)
                         texImage2D Texture2D GL.NoProxy 0 GL.DepthComponent16 (GL.TextureSize2D 2048 2048) 0
                                                 (GL.PixelData GL.DepthComponent GL.UnsignedByte ptr)
+                        textureBinding Texture2D GL.$= Nothing
                    checkError "setting up HUD-Tex"
                    return renderBuffer
     modify $ gl.glRenderbuffer .~ rb

src/Render/Misc.hs

@@ -9,6 +9,8 @@ import           Graphics.Rendering.OpenGL.GL.StateVar
 import           Graphics.Rendering.OpenGL.GL.StringQueries
 import           Graphics.Rendering.OpenGL.GLU.Errors
 import           Graphics.Rendering.OpenGL.GL.VertexArrayObjects
+import           Graphics.Rendering.OpenGL.GL.VertexArrays
+import           Graphics.Rendering.OpenGL.GL.VertexSpec
 import           Graphics.Rendering.OpenGL.GL.BufferObjects
 import           Graphics.UI.SDL.Types                      (Texture)
 import           System.IO                                  (hPutStrLn, stderr)
@@ -180,3 +182,10 @@ withVBO b t a = do
                 ret <- a
                 bindBuffer t $= Nothing
                 return ret
+
+withVAA :: [AttribLocation] -> IO a -> IO a
+withVAA atts action = do
+                mapM_ (\a -> vertexAttribArray a $= Enabled) atts
+                ret <- action
+                mapM_ (\a -> vertexAttribArray a $= Disabled) atts
+                return ret

src/Render/Render.hs

@@ -287,8 +287,7 @@ initRendering = do
 renderIQM :: IQM -> L.V3 CFloat -> L.V3 CFloat -> IO ()
 renderIQM m p@(L.V3 x y z) s@(L.V3 sx sy sz) = do
     withVAO (vertexArrayObject m) $ do
-        vertexAttribArray (AttribLocation 0) $= Enabled
+        withVAA [(AttribLocation 0),(AttribLocation 1)] $ do
-        vertexAttribArray (AttribLocation 1) $= Enabled
             checkError "setting array to enabled"
             bindBuffer ElementArrayBuffer $= Just (triangleBufferObject m)
             checkError "bindBuffer"
@@ -297,7 +296,6 @@ renderIQM m p@(L.V3 x y z) s@(L.V3 sx sy sz) = do
             drawElements Triangles n UnsignedInt nullPtr
             checkError "drawing model"
             bindBuffer ElementArrayBuffer $= Nothing
-        vertexAttribArray (AttribLocation 0) $= Disabled
             checkError "unbind buffer"
     return ()
 
@@ -322,13 +320,11 @@ drawMap = do
         glUniform1f tli (fromIntegral tessFac)
         glUniform1f tlo (fromIntegral tessFac)
 
-        bindBuffer ArrayBuffer $= Just map'
+        withVBO map' ArrayBuffer $ do
             vertexAttribPointer ci $= fgColorIndex
-        vertexAttribArray ci   $= Enabled
             vertexAttribPointer ni $= fgNormalIndex
-        vertexAttribArray ni   $= Enabled
             vertexAttribPointer vi $= fgVertexIndex
-        vertexAttribArray vi   $= Enabled
+            withVAA [ci,ni,vi] $ do
                 checkError "beforeDraw"
 
                 glPatchParameteri gl_PATCH_VERTICES 3
@@ -339,10 +335,6 @@ drawMap = do
                 glDrawArrays gl_PATCHES 0 (fromIntegral numVert)
 
                 checkError "draw map"
-        bindBuffer ArrayBuffer $= Nothing
-        vertexAttribArray ci $= Disabled
-        vertexAttribArray ni $= Disabled
-        vertexAttribArray vi $= Disabled
 
         -- set sample 1 as target in renderbuffer
         {-framebufferRenderbuffer
@@ -405,16 +397,16 @@ render = do
                 (state ^. gl.glRenderbuffer)-}
 
         ---- RENDER SHADOWMAP <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
-{-    liftIO $ do
+    liftIO $ do
-        textureBinding Texture2D $= Just (state ^. gl.glMap.shadowMapTexture)
+--        textureBinding Texture2D $= Just (state ^. gl.glMap.shadowMapTexture)
-        framebufferTexture2D
+{-        framebufferTexture2D
                 Framebuffer
                 DepthAttachment
                 Texture2D
                 (state ^. gl.glMap.shadowMapTexture)
-                0
+                0-}
 
-        drawBuffer $= NoBuffers --color-buffer is not needed but must(?) be set up
+ --       drawBuffer $= NoBuffers --color-buffer is not needed but must(?) be set up
         checkError "setup Render-Target"
 
         clear [DepthBuffer]
@@ -432,9 +424,9 @@ render = do
         --TODO: needed?
         mat33ToGPU sunnmap nmat "nmat"
 
-    drawMap
+--    drawMap
 
-    liftIO $ do
+{-    liftIO $ do
         ---- RENDER MAPOBJECTS --------------------------------------------
         currentProgram $= Just (state ^. gl.glMap.objectProgram)
         checkError "setting up shadowmap-program"
@@ -454,7 +446,7 @@ render = do
         mapM_ renderObject (state ^. gl.glMap.mapObjects)
         checkError "draw mapobjects"
 
-        checkError "draw ShadowMap"-}
+        checkError "draw ShadowMap"--}
 
         ---- RENDER MAP IN TEXTURE <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
         -- COLORMAP