closes https://github.com/assimp/assimp/issues/305': fix viewer

code/FBXConverter.cpp

@@ -1291,8 +1291,7 @@ namespace Assimp {
             unsigned int cursor = 0, in_cursor = 0;
 
             itf = faces.begin();
-            for (MatIndexArray::const_iterator it = mindices.begin(),
-                end = mindices.end(); it != end; ++it, ++itf)
+            for (MatIndexArray::const_iterator it = mindices.begin(), end = mindices.end(); it != end; ++it, ++itf)
             {
                 const unsigned int pcount = *itf;
                 if ((*it) != index) {

code/FBXImporter.cpp

@@ -60,11 +60,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/importerdesc.h>
 
 namespace Assimp {
-    template<> const char* LogFunctions<FBXImporter>::Prefix()
-    {
+
+template<>
+const char* LogFunctions<FBXImporter>::Prefix() {
     static auto prefix = "FBX: ";
     return prefix;
 }
+
 }
 
 using namespace Assimp;
@@ -72,6 +74,7 @@ using namespace Assimp::Formatter;
 using namespace Assimp::FBX;
 
 namespace {
+
 static const aiImporterDesc desc = {
     "Autodesk FBX Importer",
     "",

tools/assimp_view/assimp_view.cpp

@@ -508,19 +508,28 @@ int CreateAssetData()
         unsigned int nidx;
         switch (mesh->mPrimitiveTypes) {
             case aiPrimitiveType_POINT:
-                nidx = 1;break;
+                nidx = 1;
+                break;
             case aiPrimitiveType_LINE:
-                nidx = 2;break;
+                nidx = 2;
+                break;
             case aiPrimitiveType_TRIANGLE:
-                nidx = 3;break;
-            default: ai_assert(false);
+                nidx = 3;
+                break;
+            default: 
+                ai_assert(false);
+                break;
         };
 
+        unsigned int numIndices = mesh->mNumFaces * 3;
+        if (0 == numIndices && nidx == 1) {
+            numIndices = mesh->mNumVertices;
+        }
         // check whether we can use 16 bit indices
-        if (mesh->mNumFaces * 3 >= 65536)	{
+        if (numIndices >= 65536)	{
             // create 32 bit index buffer
             if(FAILED( g_piDevice->CreateIndexBuffer( 4 *
-                mesh->mNumFaces * nidx,
+                numIndices,
                 D3DUSAGE_WRITEONLY | dwUsage,
                 D3DFMT_INDEX32,
                 D3DPOOL_DEFAULT, 
@@ -546,7 +555,7 @@ int CreateAssetData()
         else	{
             // create 16 bit index buffer
             if(FAILED( g_piDevice->CreateIndexBuffer( 2 *
-                mesh->mNumFaces * nidx,
+                numIndices,
                 D3DUSAGE_WRITEONLY | dwUsage,
                 D3DFMT_INDEX16,
                 D3DPOOL_DEFAULT,