diff --git a/inc/hgl/graph/VKCommandBuffer.h b/inc/hgl/graph/VKCommandBuffer.h
index b1994dc1..1ced171a 100644
--- a/inc/hgl/graph/VKCommandBuffer.h
+++ b/inc/hgl/graph/VKCommandBuffer.h
@@ -114,11 +114,11 @@ public:
         return(true);
     }
 
-    bool BindDescriptorSets(VkPipelineLayout pipeline_layout,const VkDescriptorSet *ds_list,const uint32_t ds_count,const uint32_t *offset,const uint32_t offset_count)
+    bool BindDescriptorSets(VkPipelineLayout pipeline_layout,const uint32_t first_set,const VkDescriptorSet *ds_list,const uint32_t ds_count,const uint32_t *offset,const uint32_t offset_count)
     {
         if(!ds_list||ds_count<=0)return(false);
 
-        vkCmdBindDescriptorSets(cmd_buf,VK_PIPELINE_BIND_POINT_GRAPHICS,pipeline_layout,0,ds_count,ds_list,offset_count,offset);
+        vkCmdBindDescriptorSets(cmd_buf,VK_PIPELINE_BIND_POINT_GRAPHICS,pipeline_layout,first_set,ds_count,ds_list,offset_count,offset);
 
         return(true);
     }
diff --git a/src/SceneGraph/RenderList.cpp b/src/SceneGraph/RenderList.cpp
index fbbccb86..c395ffe5 100644
--- a/src/SceneGraph/RenderList.cpp
+++ b/src/SceneGraph/RenderList.cpp
@@ -214,7 +214,8 @@ namespace hgl
             }
 
             {
-                int ds_count=0;
+                uint32_t ds_count=0;
+                uint32_t first_set=0;
                 MaterialParameters *mp;
 
                 for(int i=(int)DescriptorSetType::BEGIN_RANGE;
@@ -223,9 +224,9 @@ namespace hgl
                 {
                     mp=ri->GetMP((DescriptorSetType)i);
 
-//                    if(last_mp[i]!=mp)
+                    if(last_mp[i]!=mp)
                     {
-                        //last_mp[i]=mp;
+                        last_mp[i]=mp;
 
                         if(mp)
                         {
@@ -233,6 +234,11 @@ namespace hgl
                             ++ds_count;
                         }
                     }
+                    else
+                    {
+                        if(mp)
+                            ++first_set;
+                    }
                 }
 
                 {
@@ -243,11 +249,11 @@ namespace hgl
                         ds_list[ds_count]=mp->GetVkDescriptorSet();
                         ++ds_count;
                         
-                        cmd_buf->BindDescriptorSets(ri->GetPipelineLayout(),ds_list,ds_count,&ubo_offset,1);
+                        cmd_buf->BindDescriptorSets(ri->GetPipelineLayout(),first_set,ds_list,ds_count,&ubo_offset,1);
                     }
                     else
                     {                        
-                        cmd_buf->BindDescriptorSets(ri->GetPipelineLayout(),ds_list,ds_count,nullptr,0);
+                        cmd_buf->BindDescriptorSets(ri->GetPipelineLayout(),first_set,ds_list,ds_count,nullptr,0);
                     }
 
                     ubo_offset+=ubo_align;