diff --git a/CMCore b/CMCore
index 41a2f9af..2f4a583b 160000
--- a/CMCore
+++ b/CMCore
@@ -1 +1 @@
-Subproject commit 41a2f9af7287765835d6b8b72a2a567be6eb17e0
+Subproject commit 2f4a583b9c6eb71b752deb3f85674feb22b3cd08
diff --git a/CMSceneGraph b/CMSceneGraph
index d4999fb4..17790c14 160000
--- a/CMSceneGraph
+++ b/CMSceneGraph
@@ -1 +1 @@
-Subproject commit d4999fb44535f0aa3d52295bad9a3f931d09f3a9
+Subproject commit 17790c141d4a2a7e9c15a90216c3060469c40258
diff --git a/example/MaterialCreaterTest.cpp b/example/MaterialCreaterTest.cpp
index 81153315..dfabcfdf 100644
--- a/example/MaterialCreaterTest.cpp
+++ b/example/MaterialCreaterTest.cpp
@@ -6,7 +6,7 @@ using namespace hgl::shadergen;
 
 bool PureColor2DMaterial()
 {
-    MaterialCreateInfo mc(1,false);                            //一个新材质，1个RT输出，默认使用Vertex/Fragment shader
+    MaterialCreateInfo mc("PureColor2D",1,false);                            //一个新材质，1个RT输出，默认使用Vertex/Fragment shader
 
     //vertex部分
     {
@@ -68,7 +68,7 @@ void main()
 
 bool VertexColor2DMaterial()
 {
-    MaterialCreateInfo mc(1,false);
+    MaterialCreateInfo mc("VertexColor2D",1,false);
 
     //vertex部分
     {
diff --git a/inc/hgl/graph/VKDevice.h b/inc/hgl/graph/VKDevice.h
index ab3136d6..c5c3be47 100644
--- a/inc/hgl/graph/VKDevice.h
+++ b/inc/hgl/graph/VKDevice.h
@@ -183,9 +183,9 @@ public: //Texture
 
     void Clear(TextureCreateInfo *);
 
-    bool ChangeTexture2D(Texture2D *,DeviceBuffer *buf,const List<Image2DRegion> &,                                            VkPipelineStageFlags=VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
-    bool ChangeTexture2D(Texture2D *,DeviceBuffer *buf,uint32_t left,uint32_t top,uint32_t width,uint32_t height,              VkPipelineStageFlags=VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
-    bool ChangeTexture2D(Texture2D *,void *data,    uint32_t left,uint32_t top,uint32_t width,uint32_t height,uint32_t size,VkPipelineStageFlags=VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
+    bool ChangeTexture2D(Texture2D *,DeviceBuffer *buf, const List<Image2DRegion> &,                                            VkPipelineStageFlags=VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
+    bool ChangeTexture2D(Texture2D *,DeviceBuffer *buf, uint32_t left,uint32_t top,uint32_t width,uint32_t height,              VkPipelineStageFlags=VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
+    bool ChangeTexture2D(Texture2D *,void *data,        uint32_t left,uint32_t top,uint32_t width,uint32_t height,uint32_t size,VkPipelineStageFlags=VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
 
     template<typename T>
     bool ChangeTexture2D(Texture2D *tex,DeviceBuffer *buf,const RectScope2<T> &rs)
@@ -220,7 +220,7 @@ public: //shader & material
     PipelineLayoutData *CreatePipelineLayoutData(const MaterialDescriptorSets *);
     void Destroy(PipelineLayoutData *);
 
-    DescriptorSet *    CreateDescriptorSets(const PipelineLayoutData *,const DescriptorSetType &type)const;
+    DescriptorSet *     CreateDescriptorSets(const PipelineLayoutData *,const DescriptorSetType &type)const;
     MaterialParameters *CreateMP(const MaterialDescriptorSets *,const PipelineLayoutData *,const DescriptorSetType &);
     MaterialParameters *CreateMP(Material *,const DescriptorSetType &);
     
diff --git a/inc/hgl/graph/VKRenderResource.h b/inc/hgl/graph/VKRenderResource.h
index 888649c1..3362bcd1 100644
--- a/inc/hgl/graph/VKRenderResource.h
+++ b/inc/hgl/graph/VKRenderResource.h
@@ -14,6 +14,7 @@
 #include<hgl/graph/VKRenderable.h>
 #include<hgl/graph/font/TextPrimitive.h>
 #include<hgl/type/ResManage.h>
+#include<hgl/shadergen/MaterialCreateInfo.h>
 VK_NAMESPACE_BEGIN
 using MaterialID            =int;
 using MaterialInstanceID    =int;
@@ -90,6 +91,8 @@ public: //Material
     const ShaderModule *CreateShaderModule(const OSString &filename,ShaderResource *shader_resource);
     
     Material *          CreateMaterial(const OSString &);
+    Material *          CreateMaterial(const hgl::shadergen::MaterialCreateInfo *);
+
     MaterialInstance *  CreateMaterialInstance(Material *,const VILConfig *vil_cfg=nullptr);
     MaterialInstance *  CreateMaterialInstance(const OSString &,const VILConfig *vil_cfg=nullptr);
 
diff --git a/inc/hgl/graph/VKShaderModule.h b/inc/hgl/graph/VKShaderModule.h
index 5b5e17f3..b6ae718a 100644
--- a/inc/hgl/graph/VKShaderModule.h
+++ b/inc/hgl/graph/VKShaderModule.h
@@ -60,7 +60,7 @@ class VertexShaderModule:public ShaderModule
     uint32_t attr_count;
     VAT *type_list;
     const char **name_list;
-    ShaderAttribute **ssi_list;
+    ShaderAttribute *attr_list;
 
 private:
     
@@ -77,7 +77,7 @@ public:
     const int                                   GetInputBinding(const AnsiString &name)const{return shader_resource->GetInputBinding(name);}
     const ShaderAttribute *                     GetInput       (const AnsiString &name)const{return shader_resource->GetInput(name);}
     const uint                                  GetInputCount  ()                      const{return shader_resource->GetInputCount();}    
-    const ShaderAttributeList &                 GetInputs      ()                      const{return shader_resource->GetInputs();}
+    const ShaderAttributeArray &                 GetInputs      ()                      const{return shader_resource->GetInputs();}
 
     //const uint32_t                              GetAttrCount()const{return attr_count;}
 
diff --git a/inc/hgl/graph/VKShaderResource.h b/inc/hgl/graph/VKShaderResource.h
index 0556458e..f30c6e73 100644
--- a/inc/hgl/graph/VKShaderResource.h
+++ b/inc/hgl/graph/VKShaderResource.h
@@ -21,7 +21,7 @@ class ShaderResource
 public:
 
     ShaderResource(const VkShaderStageFlagBits &,const void *,const uint32);
-    virtual ~ShaderResource()=default;
+    virtual ~ShaderResource();
 
     const   VkShaderStageFlagBits   GetStage        ()const {return stage_flag;}
     const   char *                  GetStageName    ()const {return GetShaderStageName(stage_flag);}
@@ -29,11 +29,11 @@ public:
     const   uint32_t *              GetCode         ()const {return (uint32_t *)spv_data;}
     const   uint32_t                GetCodeSize     ()const {return spv_size;}
 
-            ShaderAttributeList &   GetInputs       ()      {return stage_io.input;}
-//          ShaderAttributeList &   GetOutputs      ()      {return stage_io.output;}
+            ShaderAttributeArray &   GetInputs       ()      {return stage_io.input;}
+//          ShaderAttributeArray &   GetOutputs      ()      {return stage_io.output;}
 
-    const   uint                    GetInputCount   ()const {return stage_io.input.GetCount();}
-//  const   uint                    GetOutputCount  ()const {return stage_io.output.GetCount();}
+    const   uint                    GetInputCount   ()const {return stage_io.input.count;}
+//  const   uint                    GetOutputCount  ()const {return stage_io.output.count;}
 
     const   ShaderAttribute *       GetInput        (const AnsiString &)const;
     const   int                     GetInputBinding (const AnsiString &)const;
diff --git a/inc/hgl/shadergen/MaterialCreateInfo.h b/inc/hgl/shadergen/MaterialCreateInfo.h
index 72e2dffd..0facc4ea 100644
--- a/inc/hgl/shadergen/MaterialCreateInfo.h
+++ b/inc/hgl/shadergen/MaterialCreateInfo.h
@@ -10,6 +10,8 @@
 SHADERGEN_NAMESPACE_BEGIN
 class MaterialCreateInfo
 {
+    AnsiString shader_name;
+
 protected:
 
     uint rt_color_count;                                    ///<输出的RT数量
@@ -27,6 +29,10 @@ protected:
 
 public:
 
+    const AnsiString &GetName()const{return shader_name;}
+
+    const uint32 GetShaderStage()const{return shader_stage;}
+
     bool hasShader(const VkShaderStageFlagBits ss)const{return shader_stage&ss;}
 
     bool hasVertex  ()const{return hasShader(VK_SHADER_STAGE_VERTEX_BIT);}
@@ -42,7 +48,7 @@ public:
 
 public:
 
-    MaterialCreateInfo(const uint rc,const bool rd,const uint32 ss=VK_SHADER_STAGE_VERTEX_BIT|VK_SHADER_STAGE_FRAGMENT_BIT);
+    MaterialCreateInfo(const AnsiString &,const uint rc,const bool rd,const uint32 ss=VK_SHADER_STAGE_VERTEX_BIT|VK_SHADER_STAGE_FRAGMENT_BIT);
     ~MaterialCreateInfo()=default;
 
     bool AddStruct(const AnsiString &ubo_typename,const AnsiString &codes);
diff --git a/inc/hgl/shadergen/ShaderDescriptorInfo.h b/inc/hgl/shadergen/ShaderDescriptorInfo.h
index 85e744e8..404f3caf 100644
--- a/inc/hgl/shadergen/ShaderDescriptorInfo.h
+++ b/inc/hgl/shadergen/ShaderDescriptorInfo.h
@@ -25,7 +25,7 @@ class ShaderDescriptorInfo
 
     AnsiStringList                      struct_list;        //用到的结构列表
 
-    //ubo/object在这里以及MaterialDescriptorInfo中均有一份，mdm中的用于产生set/binding号，这里的用于产生shader
+    //ubo/object在这里以及MaterialDescriptorInfo中均有一份，mdi中的用于产生set/binding号，这里的用于产生shader
     UBODescriptorList                   ubo_list;
     SamplerDescriptorList               sampler_list;
     
diff --git a/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp b/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp
index e573742f..6aa30a32 100644
--- a/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp
+++ b/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp
@@ -7,6 +7,7 @@
 #include<hgl/filesystem/FileSystem.h>
 #include<hgl/graph/VKRenderResource.h>
 #include<hgl/io/ConstBufferReader.h>
+#include<hgl/shadergen/MaterialCreateInfo.h>
 
 VK_NAMESPACE_BEGIN
 
@@ -185,5 +186,19 @@ Material *RenderResource::CreateMaterial(const OSString &filename)
     
     material_by_name.Add(filename,mtl);    
     return(mtl);
+}
+
+Material *RenderResource::CreateMaterial(const hgl::shadergen::MaterialCreateInfo *mci)
+{
+    SHADERGEN_NAMESPACE_USING
+
+    if(!mci)
+        return(nullptr);
+
+    const uint count=GetShaderCountByBits(mci->GetShaderStage());
+    ShaderModuleMap *smm=new ShaderModuleMap;
+
+
+
 }
 VK_NAMESPACE_END
diff --git a/src/SceneGraph/Vulkan/VKShaderModule.cpp b/src/SceneGraph/Vulkan/VKShaderModule.cpp
index b248fe0d..a1021ece 100644
--- a/src/SceneGraph/Vulkan/VKShaderModule.cpp
+++ b/src/SceneGraph/Vulkan/VKShaderModule.cpp
@@ -44,18 +44,18 @@ ShaderModule::~ShaderModule()
 
 VertexShaderModule::VertexShaderModule(VkDevice dev,VkPipelineShaderStageCreateInfo *pssci,ShaderResource *sr):ShaderModule(dev,pssci,sr)
 {
-    const ShaderAttributeList &stage_input_list=sr->GetInputs();
+    const ShaderAttributeArray &stage_input_list=sr->GetInputs();
 
-    attr_count=stage_input_list.GetCount();
-    ssi_list=stage_input_list.GetData();
+    attr_count=stage_input_list.count;
+    attr_list=stage_input_list.items;
     name_list=new const char *[attr_count];
     type_list=new VAT[attr_count];
     
     for(uint i=0;i<attr_count;i++)
     {
-        name_list[i]            =ssi_list[i]->name;
-        type_list[i].basetype   =VATBaseType(ssi_list[i]->basetype);
-        type_list[i].vec_size   =ssi_list[i]->vec_size;
+        name_list[i]            =attr_list[i].name;
+        type_list[i].basetype   =VATBaseType(attr_list[i].basetype);
+        type_list[i].vec_size   =attr_list[i].vec_size;
     }
 }
 
@@ -70,8 +70,6 @@ VertexShaderModule::~VertexShaderModule()
     delete[] name_list;
 }
 
-const VkFormat GetVulkanFormat(const VATBaseType &base_type,const uint vec_size);    //VertexAttrib.cpp
-
 VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
 {
     VkVertexInputBindingDescription *binding_list=new VkVertexInputBindingDescription[attr_count];
@@ -80,7 +78,7 @@ VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
     VkVertexInputBindingDescription *bind=binding_list;
     VkVertexInputAttributeDescription *attr=attribute_list;
 
-    ShaderAttribute **si=ssi_list;
+    const ShaderAttribute *si=attr_list;
     VAConfig vac;
 
     for(uint i=0;i<attr_count;i++)
@@ -91,16 +89,16 @@ VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
         //但在我们的设计中，仅支持一个流传递一个attrib
 
         attr->binding   =i;
-        attr->location  =(*si)->location;               //此值对应shader中的layout(location=
+        attr->location  =si->location;               //此值对应shader中的layout(location=
         
         attr->offset    =0;
 
         bind->binding   =i;                             //binding对应在vkCmdBindVertexBuffer中设置的缓冲区的序列号，所以这个数字必须从0开始，而且紧密排列。
                                                         //在Renderable类中，buffer_list必需严格按照本此binding为序列号排列
 
-        if(!cfg||!cfg->Get((*si)->name,vac))
+        if(!cfg||!cfg->Get(si->name,vac))
         {
-            attr->format    =GetVulkanFormat(VATBaseType((*si)->basetype),(*si)->vec_size);
+            attr->format    =GetVulkanFormat(si);
 
             //if(memcmp((*si)->name.c_str(),"Inst_",5)==0)                //不可以使用CaseComp("Inst_",5)会被认为是比较一个5字长的字符串，而不是只比较5个字符
             //    bind->inputRate =VK_VERTEX_INPUT_RATE_INSTANCE;
@@ -112,7 +110,7 @@ VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
             if(vac.format!=PF_UNDEFINED)
                 attr->format    =vac.format;
             else                
-                attr->format    =GetVulkanFormat(VATBaseType((*si)->basetype),(*si)->vec_size);
+                attr->format    =GetVulkanFormat(si);
 
             bind->inputRate =vac.instance?VK_VERTEX_INPUT_RATE_INSTANCE:VK_VERTEX_INPUT_RATE_VERTEX;
         }
diff --git a/src/SceneGraph/Vulkan/VKShaderResource.cpp b/src/SceneGraph/Vulkan/VKShaderResource.cpp
index 57d7ae81..9eb910ee 100644
--- a/src/SceneGraph/Vulkan/VKShaderResource.cpp
+++ b/src/SceneGraph/Vulkan/VKShaderResource.cpp
@@ -10,7 +10,7 @@ VK_NAMESPACE_BEGIN
     {
         ObjectMap<OSString,ShaderResource> shader_resource_by_filename;
 
-        const bool LoadShaderStageAttributes(ShaderAttributeList &ss_list,io::ConstBufferReader &cbr)
+        const bool LoadShaderStageAttributes(ShaderAttributeArray &ss_list,io::ConstBufferReader &cbr)
         {
             uint count;
 
@@ -19,19 +19,19 @@ VK_NAMESPACE_BEGIN
             if(count<=0)
                 return(false);
 
-            ShaderAttribute *ss;
+            Init(ss_list,count);
+
+            ShaderAttribute *ss=ss_list.items;
 
             for(uint i=0;i<count;i++)
             {
-                ss=new ShaderAttribute;
-
                 cbr.Read(ss->location);
                 cbr.CastRead<uint8>(ss->basetype);
                 cbr.CastRead<uint8>(ss->vec_size);
 
                 cbr.ReadTinyString(ss->name);
 
-                ss_list.Add(ss);
+                ++ss;
             }
 
             return true;
@@ -42,18 +42,26 @@ VK_NAMESPACE_BEGIN
     {
         stage_flag=flag;
         spv_data=sd;
-        spv_size=size;            
+        spv_size=size;
+
+        Init(stage_io);
+    }
+
+    ShaderResource::~ShaderResource()
+    {
+        Clear(stage_io);
     }
 
     const ShaderAttribute *ShaderResource::GetInput(const AnsiString &name) const
     {
-        const int count=stage_io.input.GetCount();
-        ShaderAttribute **ss=stage_io.input.GetData();
+        if(stage_io.input.count<=0)return(nullptr);
 
-        for(int i=0;i<count;i++)
+        const ShaderAttribute *ss=stage_io.input.items;
+
+        for(uint i=0;i<stage_io.input.count;i++)
         {
-            if(name==(*ss)->name)
-                return *ss;
+            if(name==ss->name)
+                return ss;
 
             ++ss;
         }
@@ -63,12 +71,13 @@ VK_NAMESPACE_BEGIN
 
     const int ShaderResource::GetInputBinding(const AnsiString &name) const
     {
-        const int count=stage_io.input.GetCount();
-        ShaderAttribute **ss=stage_io.input.GetData();
+        if(stage_io.input.count<=0)return(-1);
 
-        for(int i=0;i<count;i++)
+        const ShaderAttribute *ss=stage_io.input.items;
+
+        for(uint i=0;i<stage_io.input.count;i++)
         {
-            if(name==(*ss)->name)
+            if(name==ss->name)
                 return i;
 
             ++ss;
diff --git a/src/ShaderGen/GLSLCompiler.h b/src/ShaderGen/GLSLCompiler.h
index 2329e1ad..1d256827 100644
--- a/src/ShaderGen/GLSLCompiler.h
+++ b/src/ShaderGen/GLSLCompiler.h
@@ -4,6 +4,7 @@
 #include<hgl/type/String.h>
 #include<hgl/type/Map.h>
 #include<stdint.h>
+#include<hgl/graph/VKShaderStage.h>
 
 namespace hgl
 {
@@ -17,6 +18,7 @@ namespace hgl
 namespace glsl_compiler
 {
     using namespace hgl;
+    using namespace hgl::graph;
 
     enum class DescriptorType         //等同VkDescriptorType
     {
@@ -35,22 +37,6 @@ namespace glsl_compiler
         ENUM_CLASS_RANGE(SAMPLER,INPUT_ATTACHMENT)
     };
     
-    constexpr size_t SHADER_RESOURCE_NAME_MAX_LENGTH=32;
-
-    struct ShaderAttribute
-    {
-        char name[SHADER_RESOURCE_NAME_MAX_LENGTH];
-        uint8_t location;
-        uint8_t basetype;      //现在改对应hgl/graph/VertexAttrib.h中的enum class VertexAttribType::BaseType
-        uint8_t vec_size;
-    };//
-
-    struct ShaderStageData
-    {
-        uint32_t count;
-        ShaderAttribute *items;
-    };
-
     struct Descriptor
     {
         char name[SHADER_RESOURCE_NAME_MAX_LENGTH];
@@ -90,8 +76,7 @@ namespace glsl_compiler
         uint32_t *spv_data;
         uint32_t spv_length;
 
-        ShaderStageData                     input,
-                                            output;
+        ShaderStageIO                       stage_io;
         ShaderDescriptorResource            resource;
         ShaderResourceData<PushConstant>    push_constant;
         ShaderResourceData<SubpassInput>    subpass_input;
diff --git a/src/ShaderGen/MaterialCreateInfo.cpp b/src/ShaderGen/MaterialCreateInfo.cpp
index 3ffeeee4..7409ccce 100644
--- a/src/ShaderGen/MaterialCreateInfo.cpp
+++ b/src/ShaderGen/MaterialCreateInfo.cpp
@@ -5,8 +5,10 @@ using namespace hgl;
 using namespace hgl::graph;
 
 SHADERGEN_NAMESPACE_BEGIN
-MaterialCreateInfo::MaterialCreateInfo(const uint rc,const bool rd,const uint32 ss)
+MaterialCreateInfo::MaterialCreateInfo(const AnsiString &n,const uint rc,const bool rd,const uint32 ss)
 {
+    shader_name=n;
+
     rt_color_count=rc;
     rt_depth=rd;
 
diff --git a/src/ShaderGen/ShaderCreateInfo.cpp b/src/ShaderGen/ShaderCreateInfo.cpp
index 61596545..3ea87a67 100644
--- a/src/ShaderGen/ShaderCreateInfo.cpp
+++ b/src/ShaderGen/ShaderCreateInfo.cpp
@@ -89,20 +89,24 @@ bool ShaderCreateInfo::ProcOutput()
 {
     output_struct.Clear();
 
-    const ShaderAttributeList &ssl=sdm->GetShaderStageIO().output;
+    const ShaderAttributeArray &ssd=sdm->GetShaderStageIO().output;
 
-    if(ssl.GetCount()<=0)return(true);
+    if(ssd.count<=0)return(true);
 
     output_struct=GetShaderStageName(shader_stage);
     output_struct+="_Output\n{\n";
 
-    for(auto *ss:ssl)
+    const ShaderAttribute *ss=ssd.items;
+
+    for(uint i=0;i<ssd.count;i++)
     {
         output_struct+="\t";
         output_struct+=GetShaderAttributeTypename(ss);
         output_struct+=" ";
         output_struct+=ss->name;
         output_struct+=";\n";
+
+        ++ss;
     }
 
     output_struct+="}";
diff --git a/src/ShaderGen/ShaderCreateInfoFragment.cpp b/src/ShaderGen/ShaderCreateInfoFragment.cpp
index ccbbf6da..64224eb9 100644
--- a/src/ShaderGen/ShaderCreateInfoFragment.cpp
+++ b/src/ShaderGen/ShaderCreateInfoFragment.cpp
@@ -11,15 +11,14 @@ void ShaderCreateInfoFragment::UseDefaultMain()
 
     const auto &output_list=sdm->GetShaderStageIO().output;
 
-    const uint count=output_list.GetCount();
-    ShaderAttribute **o=output_list.GetData();
+    const ShaderAttribute *o=output_list.items;
 
-    for(uint i=0;i<count;i++)
+    for(uint i=0;i<output_list.count;i++)
     {
         main_codes+="\t";
-        main_codes+=(*o)->name;
+        main_codes+=o->name;
         main_codes+="=Get";
-        main_codes+=(*o)->name;
+        main_codes+=o->name;
         main_codes+="();\n";
 
         ++o;
@@ -32,17 +31,16 @@ bool ShaderCreateInfoFragment::ProcOutput()
 {
     const auto &output_list=sdm->GetShaderStageIO().output;
 
-    const uint count=output_list.GetCount();
-    ShaderAttribute **o=output_list.GetData();
+    const ShaderAttribute *o=output_list.items;
 
-    for(uint i=0;i<count;i++)
+    for(uint i=0;i<output_list.count;i++)
     {
         final_shader+="layout(location=";
         final_shader+=AnsiString::numberOf(i);
         final_shader+=") out ";
-        final_shader+=GetShaderAttributeTypename(*o);
+        final_shader+=GetShaderAttributeTypename(o);
         final_shader+=" ";
-        final_shader+=(*o)->name;
+        final_shader+=o->name;
         final_shader+=";\n";
 
         ++o;
diff --git a/src/ShaderGen/ShaderCreateInfoVertex.cpp b/src/ShaderGen/ShaderCreateInfoVertex.cpp
index e78bf664..2c6499ec 100644
--- a/src/ShaderGen/ShaderCreateInfoVertex.cpp
+++ b/src/ShaderGen/ShaderCreateInfoVertex.cpp
@@ -34,26 +34,27 @@ bool ShaderCreateInfoVertex::ProcInput(ShaderCreateInfo *)
 {    
     const auto &input=sdm->GetShaderStageIO().input;
 
-    if(input.IsEmpty())
+    if(input.count<=0)
     {
         //no input ? this isn't a bug.
         //maybe position info from UBO/SBBO/Texture.
         return(true);
     }
 
-    if(!input.IsEmpty())
-    {
-        final_shader+="\n";
+    final_shader+="\n";
 
-        for(auto *ss:input)
-        {
-            final_shader+="layout(location=";
-            final_shader+=AnsiString::numberOf(ss->location);
-            final_shader+=") in ";
-            final_shader+=GetShaderAttributeTypename(ss);
-            final_shader+=" "+AnsiString(ss->name);
-            final_shader+=";\n";
-        }
+    const ShaderAttribute *ss=input.items;
+
+    for(uint i=0;i<input.count;i++)
+    {
+        final_shader+="layout(location=";
+        final_shader+=AnsiString::numberOf(ss->location);
+        final_shader+=") in ";
+        final_shader+=GetShaderAttributeTypename(ss);
+        final_shader+=" "+AnsiString(ss->name);
+        final_shader+=";\n";
+
+        ++ss;
     }
 
     return(true);
diff --git a/src/ShaderGen/ShaderDescriptorInfo.cpp b/src/ShaderGen/ShaderDescriptorInfo.cpp
index c436195b..19cbd753 100644
--- a/src/ShaderGen/ShaderDescriptorInfo.cpp
+++ b/src/ShaderGen/ShaderDescriptorInfo.cpp
@@ -4,16 +4,21 @@ SHADERGEN_NAMESPACE_BEGIN
 ShaderDescriptorInfo::ShaderDescriptorInfo(VkShaderStageFlagBits flag_bit)
 {
     stage_flag=flag_bit;
+
+    Init(stage_io);
     
     hgl_zero(push_constant);
 }
 
 namespace
 {
-    bool Find(ObjectList<ShaderAttribute> &ol,const ShaderAttribute *ss)
+    bool Find(ShaderAttributeArray &sad,const ShaderAttribute *ss)
     {
-        for(int i=0;i<ol.GetCount();i++)
-            if(hgl::strcmp(ol[i]->name,ss->name)==0)
+        if(sad.count<=0)
+            return(false);
+
+        for(uint i=0;i<sad.count;i++)
+            if(hgl::strcmp(sad.items[i].name,ss->name)==0)
                 return(true);
 
         return(false);
@@ -26,8 +31,9 @@ bool ShaderDescriptorInfo::AddInput(ShaderAttribute *ss)
 
     if(Find(stage_io.input,ss))return(false);
 
-    ss->location=stage_io.input.GetCount();
-    stage_io.input.Add(ss);
+    ss->location=stage_io.input.count;
+
+    Append(stage_io.input,ss);
     return(true);
 }
 
@@ -37,8 +43,9 @@ bool ShaderDescriptorInfo::AddOutput(ShaderAttribute *ss)
 
     if(Find(stage_io.output,ss))return(false);
     
-    ss->location=stage_io.output.GetCount();
-    stage_io.output.Add(ss);
+    ss->location=stage_io.output.count;
+
+    Append(stage_io.output,ss);
     return(true);
 }
 
@@ -105,20 +112,30 @@ void ShaderDescriptorInfo::DebugOutput(int index)
     
     LOG_INFO(UTF8String::numberOf(index)+": "+name+" shader");
 
-    if(stage_io.input.GetCount()>0)
+    if(stage_io.input.count>0)
     {
-        LOG_INFO("\tStage Input "+UTF8String::numberOf(stage_io.input.GetCount()));
+        LOG_INFO("\tStage Input "+UTF8String::numberOf(stage_io.input.count));
 
-        for(auto *ss:stage_io.input)
+        const ShaderAttribute *ss=stage_io.input.items;
+
+        for(uint i=0;i<stage_io.input.count;i++)
+        {
             LOG_INFO("\t\tlayout(location="+UTF8String::numberOf(ss->location)+") in "+GetShaderAttributeTypename(ss)+"\t"+UTF8String(ss->name));
+            ++ss;
+        }
     }
 
-    if(stage_io.output.GetCount()>0)
+    if(stage_io.output.count>0)
     {
-        LOG_INFO("\tStage Output "+UTF8String::numberOf(stage_io.output.GetCount()));
+        LOG_INFO("\tStage Output "+UTF8String::numberOf(stage_io.output.count));
 
-        for(auto *ss:stage_io.output)
+        const ShaderAttribute *ss=stage_io.output.items;
+
+        for(uint i=0;i<stage_io.output.count;i++)
+        {
             LOG_INFO("\t\tlayout(location="+UTF8String::numberOf(ss->location)+") out "+GetShaderAttributeTypename(ss)+"\t"+UTF8String(ss->name));
+            ++ss;
+        }
     }
     
     if(ubo_list.GetCount()>0)