--- a/Indoor.cpp	Wed Jun 26 14:22:02 2013 +0600
+++ b/Indoor.cpp	Fri Jun 28 11:34:09 2013 +0600
@@ -1262,7 +1262,7 @@
   //stru170 *v4; // ebx@1
   //BLVFace *v5; // eax@1
   //int v6; // ecx@2
-  unsigned __int16 v7; // ax@11
+  unsigned __int16 pTransitionSector; // ax@11
   Vec3_short_ *v8; // esi@15
   int v9; // edx@15
   //signed int v10; // eax@18
@@ -1273,7 +1273,7 @@
   int v15; // edx@24
   //int v16; // esi@29
   //BLVFace *v17; // edi@34
-  unsigned __int16 v18; // ax@34
+  //unsigned __int16 v18; // ax@34
   char *v19; // eax@38
   signed int v20; // ecx@38
   char *v21; // eax@42
@@ -1303,7 +1303,6 @@
   //v39 = &pIndoor->pFaces[uFaceID];
 
   auto pFace = &pIndoor->pFaces[uFaceID];
-  auto p = &nodes[node_id];
 
   if (!pFace->Portal())
   {
@@ -1315,127 +1314,115 @@
     return;
   }
 
-    if (p->uFaceID == uFaceID)
-      return;
-    if (!node_id &&
-        pBLVRenderParams->vPartyPos.x >= pFace->pBounding.x1 - 16 &&  // we are probably standing at the portal plane
-        pBLVRenderParams->vPartyPos.x <= pFace->pBounding.x2 + 16 &&
-        pBLVRenderParams->vPartyPos.y >= pFace->pBounding.y1 - 16 &&
-        pBLVRenderParams->vPartyPos.y <= pFace->pBounding.y2 + 16 &&
-        pBLVRenderParams->vPartyPos.z >= pFace->pBounding.z1 - 16 &&
-        pBLVRenderParams->vPartyPos.z <= pFace->pBounding.z2 + 16 )
+  if (nodes[node_id].uFaceID == uFaceID)
+    return;
+  if (!node_id &&
+      pBLVRenderParams->vPartyPos.x >= pFace->pBounding.x1 - 16 &&  // we are probably standing at the portal plane
+      pBLVRenderParams->vPartyPos.x <= pFace->pBounding.x2 + 16 &&
+      pBLVRenderParams->vPartyPos.y >= pFace->pBounding.y1 - 16 &&
+      pBLVRenderParams->vPartyPos.y <= pFace->pBounding.y2 + 16 &&
+      pBLVRenderParams->vPartyPos.z >= pFace->pBounding.z1 - 16 &&
+      pBLVRenderParams->vPartyPos.z <= pFace->pBounding.z2 + 16 )
+  {
+    if ( abs(pFace->pFacePlane_old.dist + pBLVRenderParams->vPartyPos.x * pFace->pFacePlane_old.vNormal.x
+                                        + pBLVRenderParams->vPartyPos.y * pFace->pFacePlane_old.vNormal.y
+                                        + pBLVRenderParams->vPartyPos.z * pFace->pFacePlane_old.vNormal.z) <= 589824 ) // we sure are standing at the portal plane
     {
-      if ( abs(pFace->pFacePlane_old.dist + pBLVRenderParams->vPartyPos.x * pFace->pFacePlane_old.vNormal.x
-                                          + pBLVRenderParams->vPartyPos.y * pFace->pFacePlane_old.vNormal.y
-                                          + pBLVRenderParams->vPartyPos.z * pFace->pFacePlane_old.vNormal.z) <= 589824 ) // we sure are standing at the portal plane
-      {
-        v7 = pFace->uSectorID;
-        if ( nodes[0].uSectorID == v7 )  // draw back sector
-          v7 = pFace->uBackSectorID;
-        nodes[num_nodes].uSectorID = v7;
-        nodes[num_nodes].uFaceID = uFaceID;
-        nodes[num_nodes].uViewportX = pBLVRenderParams->uViewportX;
-        nodes[num_nodes].uViewportZ = pBLVRenderParams->uViewportZ;
-        nodes[num_nodes].uViewportY = pBLVRenderParams->uViewportY;
-        nodes[num_nodes].uViewportW = pBLVRenderParams->uViewportW;
-        nodes[num_nodes].field_C.GetViewportData(pBLVRenderParams->uViewportX, pBLVRenderParams->uViewportY,
-                                         pBLVRenderParams->uViewportZ, pBLVRenderParams->uViewportW);
-        AddBspNodeToRenderList(++num_nodes - 1);
-        return;
-      }
-      //v5 = v39;
-      //v6 = a0;
+      pTransitionSector = pFace->uSectorID;
+      if ( nodes[0].uSectorID == pTransitionSector )  // draw back sector
+        pTransitionSector = pFace->uBackSectorID;
+      nodes[num_nodes].uSectorID = pTransitionSector;
+      nodes[num_nodes].uFaceID = uFaceID;
+      nodes[num_nodes].uViewportX = pBLVRenderParams->uViewportX;
+      nodes[num_nodes].uViewportZ = pBLVRenderParams->uViewportZ;
+      nodes[num_nodes].uViewportY = pBLVRenderParams->uViewportY;
+      nodes[num_nodes].uViewportW = pBLVRenderParams->uViewportW;
+      nodes[num_nodes].field_C.GetViewportData(pBLVRenderParams->uViewportX, pBLVRenderParams->uViewportY,
+                                       pBLVRenderParams->uViewportZ, pBLVRenderParams->uViewportW);
+      AddBspNodeToRenderList(++num_nodes - 1);
+      return;
     }
-
-    v8 = &pIndoor->pVertices[pFace->pVertexIDs[0]];
-    v9 = pFace->pFacePlane_old.vNormal.x * (v8->x - pBLVRenderParams->vPartyPos.x)
-       + pFace->pFacePlane_old.vNormal.y * (v8->y - pBLVRenderParams->vPartyPos.y)
-       + pFace->pFacePlane_old.vNormal.z * (v8->z - pBLVRenderParams->vPartyPos.z);
-    if (p->uSectorID != pFace->uSectorID)
-      v9 = -v9;
-    if (v9 >= 0)
-      return;
-
-    auto num_vertices = sub_423B5D(uFaceID);
-    if (num_vertices < 2)
-      return;
-
-    auto face_min_screenspace_x = stru_50B700._screen_space_x[0],
-         face_max_screenspace_x = stru_50B700._screen_space_x[0];
-    auto face_min_screenspace_y = stru_50B700._screen_space_y[0],
-         face_max_screenspace_y = stru_50B700._screen_space_y[0];
-    for (uint i = 1; i < num_vertices; ++i)
-    {
-      if (face_min_screenspace_x > stru_50B700._screen_space_x[i])
-        face_min_screenspace_x = stru_50B700._screen_space_x[i];
-      if (face_max_screenspace_x < stru_50B700._screen_space_x[i])
-        face_max_screenspace_x = stru_50B700._screen_space_x[i];
-
-      if (face_min_screenspace_y > stru_50B700._screen_space_y[i])
-        face_min_screenspace_y = stru_50B700._screen_space_y[i];
-      if (face_max_screenspace_y < stru_50B700._screen_space_y[i])
-        face_max_screenspace_y = stru_50B700._screen_space_y[i];
-    }
+  }
+
+  v9 = pFace->pFacePlane_old.vNormal.x * (pIndoor->pVertices[pFace->pVertexIDs[0]].x - pBLVRenderParams->vPartyPos.x)
+     + pFace->pFacePlane_old.vNormal.y * (pIndoor->pVertices[pFace->pVertexIDs[0]].y - pBLVRenderParams->vPartyPos.y)
+     + pFace->pFacePlane_old.vNormal.z * (pIndoor->pVertices[pFace->pVertexIDs[0]].z - pBLVRenderParams->vPartyPos.z);
+  if (nodes[node_id].uSectorID != pFace->uSectorID)
+    v9 = -v9;
+  if (v9 >= 0)
+    return;
+
+  auto num_vertices = sub_423B5D(uFaceID);
+  if (num_vertices < 2)
+    return;
+
+  auto face_min_screenspace_x = stru_50B700._screen_space_x[0],
+       face_max_screenspace_x = stru_50B700._screen_space_x[0];
+  auto face_min_screenspace_y = stru_50B700._screen_space_y[0],
+       face_max_screenspace_y = stru_50B700._screen_space_y[0];
+  for (uint i = 1; i < num_vertices; ++i)
+  {
+    if (face_min_screenspace_x > stru_50B700._screen_space_x[i])
+      face_min_screenspace_x = stru_50B700._screen_space_x[i];
+    if (face_max_screenspace_x < stru_50B700._screen_space_x[i])
+      face_max_screenspace_x = stru_50B700._screen_space_x[i];
+
+    if (face_min_screenspace_y > stru_50B700._screen_space_y[i])
+      face_min_screenspace_y = stru_50B700._screen_space_y[i];
+    if (face_max_screenspace_y < stru_50B700._screen_space_y[i])
+      face_max_screenspace_y = stru_50B700._screen_space_y[i];
+  }
 	  //_screen_space_x = 719, 568, 493
 	  //savegame: qw , 0Bh and 0x1D4h
 	  //problem here when standing near/on portal, condition is false because of face_min_screenspace_x > p->uViewportZ
-      if (face_max_screenspace_x >= p->uViewportX &&
-          face_min_screenspace_x <= p->uViewportZ &&
-          face_max_screenspace_y >= p->uViewportY &&
-          face_min_screenspace_y <= p->uViewportW &&
-          sub_424829(num_vertices, &nodes[num_nodes].field_C, &p->field_C, uFaceID))
-        {
-          //v17 = v39;
-          v18 = pFace->uSectorID;
-          if (p->uSectorID == v18 )
-            v18 = pFace->uBackSectorID;
-          nodes[num_nodes].uSectorID = v18;
-          nodes[num_nodes].uFaceID = uFaceID;
-          nodes[num_nodes].uViewportX = pBLVRenderParams->uViewportX;
-          nodes[num_nodes].uViewportZ = pBLVRenderParams->uViewportZ;
-          nodes[num_nodes].uViewportY = pBLVRenderParams->uViewportY;
-          nodes[num_nodes].uViewportW = pBLVRenderParams->uViewportW;
-          //v38 = pGame->pStru10Instance;
-          //a0a = pGame->pIndoorCameraD3D;
-          v29 = false;
-          if (p->viewing_portal_id == -1)
-          {
-            v29 = pGame->pStru10Instance->CalcPortalShape(pFace, nodes[num_nodes].std__vector_0007AC, nodes[num_nodes].pPortalBounding);
-          }
-          else
-          {
-            static RenderVertexSoft static_subAddFaceToRenderList_d3d_stru_F7AA08[64];
-            static RenderVertexSoft static_subAddFaceToRenderList_d3d_stru_F79E08[64];
-
-            for (uint k = 0; k < pFace->uNumVertices; ++k)
-            {
-              static_subAddFaceToRenderList_d3d_stru_F7AA08[k].vWorldPosition.x = pIndoor->pVertices[pFace->pVertexIDs[k]].x;
-              static_subAddFaceToRenderList_d3d_stru_F7AA08[k].vWorldPosition.y = pIndoor->pVertices[pFace->pVertexIDs[k]].y;
-              static_subAddFaceToRenderList_d3d_stru_F7AA08[k].vWorldPosition.z = pIndoor->pVertices[pFace->pVertexIDs[k]].z;
-            }
-
-
-            unsigned int a2 = pFace->uNumVertices;
-            pGame->pIndoorCameraD3D->CalcPortalShape(static_subAddFaceToRenderList_d3d_stru_F7AA08,
-                                                     &a2,
-                                                     static_subAddFaceToRenderList_d3d_stru_F79E08,
-                                                     p->std__vector_0007AC, 4, 0, 0);
-
-            v29 = pGame->pStru10Instance->_49C5DA(pFace, static_subAddFaceToRenderList_d3d_stru_F79E08, &a2,
-                                                  nodes[num_nodes].std__vector_0007AC,
-                                                  nodes[num_nodes].pPortalBounding);
-          }
-          if ( 1 )
-          {
-            assert(num_nodes < 150);
-
-            nodes[num_nodes].viewing_portal_id = uFaceID;
-            AddBspNodeToRenderList(++num_nodes - 1);
-          }
-          if (pBLVRenderParams->uFlags & INDOOR_CAMERA_DRAW_SW_OUTLINES)
-            pGame->pIndoorCameraD3D->PrepareAndDrawDebugOutline(pFace, 0x1E1EFF);
-            //pGame->pIndoorCameraD3D->DebugDrawPortal(pFace);
-        }
+  if (face_max_screenspace_x >= nodes[node_id].uViewportX &&
+      face_min_screenspace_x <= nodes[node_id].uViewportZ &&
+      face_max_screenspace_y >= nodes[node_id].uViewportY &&
+      face_min_screenspace_y <= nodes[node_id].uViewportW &&
+      sub_424829(num_vertices, &nodes[num_nodes].field_C, &nodes[node_id].field_C, uFaceID))
+  {
+    pTransitionSector = pFace->uSectorID;
+    if (nodes[node_id].uSectorID == pTransitionSector )
+      pTransitionSector = pFace->uBackSectorID;
+    nodes[num_nodes].uSectorID = pTransitionSector;
+    nodes[num_nodes].uFaceID = uFaceID;
+    nodes[num_nodes].uViewportX = pBLVRenderParams->uViewportX;
+    nodes[num_nodes].uViewportZ = pBLVRenderParams->uViewportZ;
+    nodes[num_nodes].uViewportY = pBLVRenderParams->uViewportY;
+    nodes[num_nodes].uViewportW = pBLVRenderParams->uViewportW;
+    v29 = false;
+    if (nodes[node_id].viewing_portal_id == -1)//первый портал на который я смотрю
+      v29 = pGame->pStru10Instance->CalcPortalShape(pFace, nodes[num_nodes].std__vector_0007AC, nodes[num_nodes].pPortalBounding);
+    else//следующие порталы в портале
+    {
+      static RenderVertexSoft static_subAddFaceToRenderList_d3d_stru_F7AA08[64];
+      static RenderVertexSoft static_subAddFaceToRenderList_d3d_stru_F79E08[64];
+
+      for (uint k = 0; k < pFace->uNumVertices; ++k)
+      {
+        static_subAddFaceToRenderList_d3d_stru_F7AA08[k].vWorldPosition.x = pIndoor->pVertices[pFace->pVertexIDs[k]].x;
+        static_subAddFaceToRenderList_d3d_stru_F7AA08[k].vWorldPosition.y = pIndoor->pVertices[pFace->pVertexIDs[k]].y;
+        static_subAddFaceToRenderList_d3d_stru_F7AA08[k].vWorldPosition.z = pIndoor->pVertices[pFace->pVertexIDs[k]].z;
+      }
+
+      unsigned int pNewNumVertices = pFace->uNumVertices;
+      pGame->pIndoorCameraD3D->CalcPortalShape(static_subAddFaceToRenderList_d3d_stru_F7AA08, &pNewNumVertices,
+                                               static_subAddFaceToRenderList_d3d_stru_F79E08, nodes[node_id].std__vector_0007AC, 4, 0, 0);
+
+      v29 = pGame->pStru10Instance->_49C5DA(pFace, static_subAddFaceToRenderList_d3d_stru_F79E08, &pNewNumVertices,
+                                            nodes[num_nodes].std__vector_0007AC, nodes[num_nodes].pPortalBounding);
+    }
+    if ( 1 )
+    {
+      assert(num_nodes < 150);
+
+      nodes[num_nodes].viewing_portal_id = uFaceID;
+      AddBspNodeToRenderList(++num_nodes - 1);
+    }
+    if (pBLVRenderParams->uFlags & INDOOR_CAMERA_DRAW_SW_OUTLINES)
+      pGame->pIndoorCameraD3D->PrepareAndDrawDebugOutline(pFace, 0x1E1EFF);
+    //pGame->pIndoorCameraD3D->DebugDrawPortal(pFace);
+  }
 }