Fix AMD render problem with missed meshes.

Engine/source/ts/tsMesh.cpp

@@ -2428,7 +2428,7 @@ void TSMesh::_createVBIB( TSVertexBufferHandle &vb, GFXPrimitiveBufferHandle &pb
             pInfo.startIndex = draw.start;
             // Use the first index to determine which 16-bit address space we are operating in
             pInfo.startVertex = indices[draw.start] & 0xFFFF0000;
-            pInfo.minIndex = pInfo.startVertex;
+            pInfo.minIndex = 0; // minIndex are zero based index relative to startVertex. See @GFXDevice
             pInfo.numVertices = getMin((U32)0x10000, mNumVerts - pInfo.startVertex);
             break;
 
@@ -2439,7 +2439,7 @@ void TSMesh::_createVBIB( TSVertexBufferHandle &vb, GFXPrimitiveBufferHandle &pb
             pInfo.startIndex = draw.start;
             // Use the first index to determine which 16-bit address space we are operating in
             pInfo.startVertex = indices[draw.start] & 0xFFFF0000;
-            pInfo.minIndex = pInfo.startVertex;
+            pInfo.minIndex = 0; // minIndex are zero based index relative to startVertex. See @GFXDevice
             pInfo.numVertices = getMin((U32)0x10000, mNumVerts - pInfo.startVertex);
             break;