diff --git a/example/Vulkan/VKBuffer.h b/example/Vulkan/VKBuffer.h
index 23b29f87..6fe4166b 100644
--- a/example/Vulkan/VKBuffer.h
+++ b/example/Vulkan/VKBuffer.h
@@ -22,6 +22,7 @@ private:
 
     friend class Device;
     friend class VertexBuffer;
+    friend class IndexBuffer;
 
     Buffer(VkDevice d,const VulkanBuffer &vb)
     {
@@ -71,5 +72,28 @@ public:
         return Buffer::Map(start*stride,size*stride);
     }
 };//class VertexBuffer:public Buffer
+
+class IndexBuffer:public Buffer
+{
+    VkIndexType index_type;
+    uint32_t count;
+
+private:
+
+    friend class Device;
+
+    IndexBuffer(VkDevice d,const VulkanBuffer &vb,VkIndexType it,uint32_t _count):Buffer(d,vb)
+    {
+        index_type=it;
+        count=_count;
+    }
+
+public:
+
+    ~IndexBuffer()=default;
+
+    const VkIndexType   GetType ()const{return index_type;}
+    const uint32        GetCount()const{return count;}
+};//class IndexBuffer:public Buffer
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_BUFFER_INCLUDE