diff --git a/inc/hgl/graph/VKDevice.h b/inc/hgl/graph/VKDevice.h
index 683ae077..02535d08 100644
--- a/inc/hgl/graph/VKDevice.h
+++ b/inc/hgl/graph/VKDevice.h
@@ -224,7 +224,7 @@ public: //shader & material
     MaterialParameters *CreateMP(const MaterialDescriptorSets *,const PipelineLayoutData *,const DescriptorSetType &);
     MaterialParameters *CreateMP(Material *,const DescriptorSetType &);
     
-    ShaderModule *CreateShaderModule(VkShaderStageFlagBits,const void *,const size_t);
+    ShaderModule *CreateShaderModule(VkShaderStageFlagBits,const uint32_t *,const size_t);
     
     Material *CreateMaterial(const UTF8String &mtl_name,ShaderModuleMap *shader_maps,MaterialDescriptorSets *,VertexInput *);
 
diff --git a/inc/hgl/graph/VKRenderResource.h b/inc/hgl/graph/VKRenderResource.h
index bd6b49e2..f29f4f7c 100644
--- a/inc/hgl/graph/VKRenderResource.h
+++ b/inc/hgl/graph/VKRenderResource.h
@@ -88,7 +88,7 @@ public: // VBO/VAO
 
 public: //Material
 
-    const ShaderModule *CreateShaderModule(const OSString &filename,VkShaderStageFlagBits shader_stage,const void *spv_data,const size_t spv_size);
+    const ShaderModule *CreateShaderModule(const OSString &filename,VkShaderStageFlagBits shader_stage,const uint32_t *spv_data,const size_t spv_size);
     
     Material *          CreateMaterial(const OSString &);
     Material *          CreateMaterial(const hgl::shadergen::MaterialCreateInfo *);
diff --git a/inc/hgl/graph/VKShaderResource.h b/inc/hgl/graph/VKShaderResource.h
index b157e08a..8189b3aa 100644
--- a/inc/hgl/graph/VKShaderResource.h
+++ b/inc/hgl/graph/VKShaderResource.h
@@ -13,14 +13,14 @@ class ShaderResource
 {
     VkShaderStageFlagBits stage_flag;
 
-    const void *spv_data;
+    const uint32_t *spv_data;
     uint32 spv_size;
 
     ShaderStageIO stage_io;
 
 public:
 
-    ShaderResource(const VkShaderStageFlagBits &,const void *,const uint32);
+    ShaderResource(const VkShaderStageFlagBits &,const uint32_t *,const uint32);
     virtual ~ShaderResource();
 
     const   VkShaderStageFlagBits   GetStage        ()const {return stage_flag;}
diff --git a/src/SceneGraph/Vulkan/VKShaderModule.cpp b/src/SceneGraph/Vulkan/VKShaderModule.cpp
index ee31c85e..6d730720 100644
--- a/src/SceneGraph/Vulkan/VKShaderModule.cpp
+++ b/src/SceneGraph/Vulkan/VKShaderModule.cpp
@@ -7,14 +7,14 @@ struct ShaderModuleCreateInfo:public vkstruct_flag<VkShaderModuleCreateInfo,VK_S
 {
 public:
 
-    ShaderModuleCreateInfo(const void *spv_data,const size_t spv_size)
+    ShaderModuleCreateInfo(const uint32_t *spv_data,const size_t spv_size)
     {
         codeSize=spv_size;
-        pCode   =(const uint32_t *)spv_data;
+        pCode   =spv_data;
     }
 };//struct ShaderModuleCreateInfo
 
-ShaderModule *GPUDevice::CreateShaderModule(VkShaderStageFlagBits shader_stage,const void *spv_data,const size_t spv_size)
+ShaderModule *GPUDevice::CreateShaderModule(VkShaderStageFlagBits shader_stage,const uint32_t *spv_data,const size_t spv_size)
 {
     if(!spv_data||spv_size<4)return(nullptr);
 
diff --git a/src/SceneGraph/Vulkan/VKShaderResource.cpp b/src/SceneGraph/Vulkan/VKShaderResource.cpp
index a3914a15..b7d53b66 100644
--- a/src/SceneGraph/Vulkan/VKShaderResource.cpp
+++ b/src/SceneGraph/Vulkan/VKShaderResource.cpp
@@ -38,7 +38,7 @@ VK_NAMESPACE_BEGIN
         }
     }//namespcae
 
-    ShaderResource::ShaderResource(const VkShaderStageFlagBits &flag,const void *sd,const uint32 size)
+    ShaderResource::ShaderResource(const VkShaderStageFlagBits &flag,const uint32_t *sd,const uint32 size)
     {
         stage_flag=flag;
         spv_data=sd;
@@ -94,7 +94,7 @@ VK_NAMESPACE_BEGIN
         cbr.CastRead<uint32>(flag);
         cbr.Read(spv_size);
 
-        ShaderResource *sr=new ShaderResource(flag,cbr.CurPointer(),spv_size);
+        ShaderResource *sr=new ShaderResource(flag,(const uint32_t *)cbr.CurPointer(),spv_size);
 
         cbr.Skip(spv_size);