diff --git a/example/Vulkan/Deferred.cpp b/example/Vulkan/Deferred.cpp
index a6934167..0a43ed41 100644
--- a/example/Vulkan/Deferred.cpp
+++ b/example/Vulkan/Deferred.cpp
@@ -147,16 +147,21 @@ private:
         gbuffer.extent.height  =GBUFFER_HEIGHT;
 
         //根据候选格式表选择格式
-        const VkFormat position_format  =GetCandidateFormat(position_candidate_format,  sizeof(position_candidate_format));
-        const VkFormat color_format     =GetCandidateFormat(color_candidate_format,     sizeof(color_candidate_format));
-        const VkFormat normal_format    =GetCandidateFormat(normal_candidate_format,    sizeof(normal_candidate_format));
-        const VkFormat depth_format     =GetDepthCandidateFormat();
+        //const VkFormat position_format  =GetCandidateFormat(position_candidate_format,  sizeof(position_candidate_format));
+        //const VkFormat color_format     =GetCandidateFormat(color_candidate_format,     sizeof(color_candidate_format));
+        //const VkFormat normal_format    =GetCandidateFormat(normal_candidate_format,    sizeof(normal_candidate_format));
+        //const VkFormat depth_format     =GetDepthCandidateFormat();
 
-        if(position_format  ==FMT_UNDEFINED
-         ||color_format     ==FMT_UNDEFINED
-         ||normal_format    ==FMT_UNDEFINED
-         ||depth_format     ==FMT_UNDEFINED)
-            return(false);
+        //if(position_format  ==FMT_UNDEFINED
+        // ||color_format     ==FMT_UNDEFINED
+        // ||normal_format    ==FMT_UNDEFINED
+        // ||depth_format     ==FMT_UNDEFINED)
+        //    return(false);
+
+        const VkFormat position_format  =FMT_RGBA16F;
+        const VkFormat color_format     =FMT_RGBA16F;
+        const VkFormat normal_format    =FMT_RGBA16F;
+        const VkFormat depth_format     =FMT_D16UN;
 
         gbuffer.position=device->CreateAttachmentTextureColor(position_format,  gbuffer.extent.width,gbuffer.extent.height);
         gbuffer.color   =device->CreateAttachmentTextureColor(color_format,     gbuffer.extent.width,gbuffer.extent.height);
diff --git a/inc/hgl/graph/vulkan/VKDevice.h b/inc/hgl/graph/vulkan/VKDevice.h
index 86575147..ce4932cd 100644
--- a/inc/hgl/graph/vulkan/VKDevice.h
+++ b/inc/hgl/graph/vulkan/VKDevice.h
@@ -141,7 +141,7 @@ public: //material相关
     Texture2D *CreateAttachmentTextureDepth(const VkFormat video_format,uint32_t width,uint32_t height)
     {
         return CreateAttachmentTexture( video_format,width,height,
-                                        VK_IMAGE_ASPECT_DEPTH_BIT|VK_IMAGE_ASPECT_STENCIL_BIT,
+                                        VK_IMAGE_ASPECT_DEPTH_BIT,//|VK_IMAGE_ASPECT_STENCIL_BIT,
                                         VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
                                         VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
     }