fix problem with vbuf init (vcount -> bufbytes)

hw3d/Vertex.h

@@ -259,6 +259,10 @@ namespace hw3dexp
 		{
 			return buffer.size() / layout.Size();
 		}
+		size_t SizeBytes() const noexcept(!IS_DEBUG)
+		{
+			return buffer.size();
+		}
 		template<typename ...Params>
 		void EmplaceBack( Params&&... params ) noexcept(!IS_DEBUG)
 		{

hw3d/VertexBuffer.h

@@ -35,7 +35,7 @@ public:
 		bd.Usage = D3D11_USAGE_DEFAULT;
 		bd.CPUAccessFlags = 0u;
 		bd.MiscFlags = 0u;
-		bd.ByteWidth = UINT( vbuf.Size() );
+		bd.ByteWidth = UINT( vbuf.SizeBytes() );
 		bd.StructureByteStride = stride;
 		D3D11_SUBRESOURCE_DATA sd = {};
 		sd.pSysMem = vbuf.GetData();