diff --git a/inc/hgl/graph/VKDevice.h b/inc/hgl/graph/VKDevice.h
index 802437e4..55aed076 100644
--- a/inc/hgl/graph/VKDevice.h
+++ b/inc/hgl/graph/VKDevice.h
@@ -117,8 +117,8 @@ public: //Buffer相关
     VBO *           CreateVBO   (VkFormat format, uint32_t count,const void *data,    SharingMode sm=SharingMode::Exclusive);
     VBO *           CreateVBO   (VkFormat format, uint32_t count,                     SharingMode sm=SharingMode::Exclusive){return CreateVBO(format,count,nullptr,sm);}
 
-    const IndexType GetIndexType(const VkDeviceSize &vertex_count)const;     ///<求一个合适的索引类型
-    const bool      CheckIndexType(const IndexType,const VkDeviceSize &vertex_count)const;     ///<检测一个索引类型是否合适
+    const IndexType ChooseIndexType (const VkDeviceSize &vertex_count)const;                    ///<求一个合适的索引类型
+    const bool      CheckIndexType  (const IndexType,const VkDeviceSize &vertex_count)const;    ///<检测一个索引类型是否合适
 
     IndexBuffer *   CreateIBO   (IndexType type,  uint32_t count,const void *  data,  SharingMode sm=SharingMode::Exclusive);
     IndexBuffer *   CreateIBO8  (                 uint32_t count,const void *  data,  SharingMode sm=SharingMode::Exclusive){return CreateIBO(IndexType::U8,  count,(void *)data,sm);}
diff --git a/src/SceneGraph/InlineGeometry.cpp b/src/SceneGraph/InlineGeometry.cpp
index 1437ea9a..644c679a 100644
--- a/src/SceneGraph/InlineGeometry.cpp
+++ b/src/SceneGraph/InlineGeometry.cpp
@@ -177,13 +177,13 @@ namespace hgl
                 const float bottom=float(pgci->grid_size.Height())/2.0f;
                 const float top   =-bottom;
 
-                for(int row=0;row<=pgci->grid_size.Height();row++)
+                for(uint row=0;row<=pgci->grid_size.Height();row++)
                 {
                     vertex->WriteLine(  Vector3f(left ,top+row,0),
                                         Vector3f(right,top+row,0));
                 }
 
-                for(int col=0;col<=pgci->grid_size.Width();col++)
+                for(uint col=0;col<=pgci->grid_size.Width();col++)
                 {
                     vertex->WriteLine(Vector3f(left+col,top,   0),
                                       Vector3f(left+col,bottom,0));
@@ -192,7 +192,7 @@ namespace hgl
                 AutoDelete<VB1f> lum=rc.AccessVBO<VB1f>(VAN::Luminance);
                 if(lum)
                 {
-                    for(int row=0;row<=pgci->grid_size.Height();row++)
+                    for(uint row=0;row<=pgci->grid_size.Height();row++)
                     {
                         if((row%pgci->sub_count.Height())==0)
                             lum->RepeatWrite(pgci->sub_lum,2);
@@ -200,7 +200,7 @@ namespace hgl
                             lum->RepeatWrite(pgci->lum,2);
                     }
 
-                    for(int col=0;col<=pgci->grid_size.Width();col++)
+                    for(uint col=0;col<=pgci->grid_size.Width();col++)
                     {
                         if((col%pgci->sub_count.Width())==0)
                             lum->RepeatWrite(pgci->sub_lum,2);
diff --git a/src/SceneGraph/PrimitiveCreater.cpp b/src/SceneGraph/PrimitiveCreater.cpp
index 1fe5885b..6676523e 100644
--- a/src/SceneGraph/PrimitiveCreater.cpp
+++ b/src/SceneGraph/PrimitiveCreater.cpp
@@ -64,7 +64,7 @@ namespace hgl
                 {
                     if(it==IndexType::AUTO)
                     {
-                        it=device->GetIndexType(vertex_count);
+                        it=device->ChooseIndexType(vertex_count);
 
                         if(!IsIndexType(it))
                             return(false);
diff --git a/src/SceneGraph/Vulkan/VKDeviceBuffer.cpp b/src/SceneGraph/Vulkan/VKDeviceBuffer.cpp
index d41ff1b3..6c8c3c61 100644
--- a/src/SceneGraph/Vulkan/VKDeviceBuffer.cpp
+++ b/src/SceneGraph/Vulkan/VKDeviceBuffer.cpp
@@ -77,7 +77,7 @@ VBO *GPUDevice::CreateVBO(VkFormat format,uint32_t count,const void *data,Sharin
     return(new VertexAttribBuffer(attr->device,buf,format,stride,count));
 }
 
-const IndexType GPUDevice::GetIndexType(const VkDeviceSize &vertex_count)const
+const IndexType GPUDevice::ChooseIndexType(const VkDeviceSize &vertex_count)const
 {
     if(vertex_count<=0)return(IndexType::ERR);