fix viewer in case of unknown primitives.

code/AssetLib/DXF/DXFLoader.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,

tools/assimp_view/assimp_view.cpp

@@ -489,7 +489,7 @@ int CreateAssetData() {
             nidx = 3;
             break;
         default:
-            ai_assert(false);
+            CLogWindow::Instance().WriteLine("Unknown primitiv type");
             break;
         };
 
@@ -500,8 +500,7 @@ int CreateAssetData() {
         // check whether we can use 16 bit indices
         if (numIndices >= 65536) {
             // create 32 bit index buffer
-            if (FAILED(g_piDevice->CreateIndexBuffer(4 *
-                                                             numIndices,
+            if (FAILED(g_piDevice->CreateIndexBuffer(4 * numIndices,
                         D3DUSAGE_WRITEONLY | dwUsage,
                         D3DFMT_INDEX32,
                         D3DPOOL_DEFAULT,