move matrix transposition into poke definition

src/CommandBuffer.hs

@@ -224,7 +224,7 @@ recordCommandBuffer
 
             let constants = MeshPushConstants
                   { meshPushData     = V4 0 0 0 0
-                  , meshRenderMatrix = transpose modelMatrix
+                  , meshRenderMatrix = modelMatrix
                   }
                 mesh = meshMap M.! meshID
                 material = materialMap M.! materialID
@@ -323,7 +323,7 @@ pokeData frame frameNumber sceneParameters cameraParameters = do
   V.mapM_
     (\(index, obj) -> do
 
-      let modelMatrix = GPUObjectData (transpose $ objectMatrix obj)
+      let modelMatrix = GPUObjectData (objectMatrix obj)
 
       liftIO $ poke
         (castPtr objectPointer `plusPtr` (index * sizeOf (undefined :: GPUObjectData)))

src/Draw.hs

@@ -68,9 +68,9 @@ drawFrame engineData frameNumber = do
         0.1
         200
       cameraData = GPUCameraData
-        { view           = transpose camView
-        , projection     = transpose camProjection
-        , viewProjection = transpose $ camProjection !*! camView
+        { view           = camView
+        , projection     = camProjection
+        , viewProjection = camProjection !*! camView
         }
 
   pokeData

src/Types.hs

@@ -220,7 +220,7 @@ instance Storable GPUObjectData where
     GPUObjectData <$> peek (castPtr ptr)
 
   poke ptr (GPUObjectData modelMatrix) =
-    poke (castPtr ptr) modelMatrix
+    poke (castPtr ptr) $ transpose modelMatrix
 
 data GPUCameraData = GPUCameraData
   { view           :: M44 Float
@@ -242,9 +242,10 @@ instance Storable GPUCameraData where
     return $ GPUCameraData v p vp
 
   poke ptr (GPUCameraData pview pprojection pviewProjection) = do
-    poke (castPtr ptr) pview
-    poke (castPtr ptr `plusPtr` sizeOf pview) pprojection
-    poke (castPtr ptr `plusPtr` sizeOf pview `plusPtr` sizeOf pprojection) pviewProjection
+    poke (castPtr ptr) $ transpose pview
+    poke (castPtr ptr `plusPtr` sizeOf pview) $ transpose pprojection
+    poke (castPtr ptr `plusPtr` sizeOf pview `plusPtr` sizeOf pprojection) $
+      transpose pviewProjection
 
 data GPUSceneData = GPUSceneData
   { fogColor     :: V4 Float