diff --git a/CMCore b/CMCore
index 2d976583..328e6d2f 160000
--- a/CMCore
+++ b/CMCore
@@ -1 +1 @@
-Subproject commit 2d9765839e0446292ae96ce126c01ffb04bc30a7
+Subproject commit 328e6d2f26f0cbd15104dd817798f20cc624ea80
diff --git a/inc/hgl/graph/shader/ShaderMaker.h b/inc/hgl/graph/shader/ShaderMaker.h
index ad5143f9..7f8540b7 100644
--- a/inc/hgl/graph/shader/ShaderMaker.h
+++ b/inc/hgl/graph/shader/ShaderMaker.h
@@ -1,8 +1,18 @@
 #ifndef HGL_GRAPH_SHADER_MAKER_INCLUDE
 #define HGL_GRAPH_SHADER_MAKER_INCLUDE
 
-namespace hgl
+#include<hgl/graph/shader/node/finished.h>
+BEGIN_SHADER_NAMESPACE
+class ShaderMaker
 {
+    node::Finished *fin_node;
 
-}//namespace hgl
+public:
+
+    ShaderMaker(node::Finished *fn){fin_node=fn;}
+    ~ShaderMaker();
+
+    bool Make();
+};//class ShaderMaker
+END_SHADER_NAMESPACE
 #endif//HGL_GRAPH_SHADER_MAKER_INCLUDE
diff --git a/inc/hgl/graph/shader/common.h b/inc/hgl/graph/shader/common.h
index 48ecdc9d..dc38b2dd 100644
--- a/inc/hgl/graph/shader/common.h
+++ b/inc/hgl/graph/shader/common.h
@@ -13,4 +13,13 @@
 #define BEGIN_SHADER_PARAM_NAMESPACE namespace hgl{namespace graph{namespace shader{namespace param{
 #define END_SHADER_PARAM_NAMESPACE   }}}}
 
+BEGIN_SHADER_NODE_NAMESPACE
+class Node;
+END_SHADER_NODE_NAMESPACE
+
+BEGIN_SHADER_PARAM_NAMESPACE
+class Param;
+class InputParam:public Param;
+class OutputParam:public Param;
+END_SHADER_PARAM_NAMESPACE
 #endif//HGL_GRAPH_SHADER_COMMON_INCLUDE
diff --git a/inc/hgl/graph/shader/node/finished.h b/inc/hgl/graph/shader/node/finished.h
index c7195730..009b6e3e 100644
--- a/inc/hgl/graph/shader/node/finished.h
+++ b/inc/hgl/graph/shader/node/finished.h
@@ -1,18 +1,18 @@
 #ifndef HGL_GRAPH_SHADER_NODE_FINISHED_INCLUDE
 #define HGL_GRAPH_SHADER_NODE_FINISHED_INCLUDE
 
-#include<hgl/graph/shader/node/in.h>
+#include<hgl/graph/shader/node/node.h>
 #include<hgl/graph/shader/param/in.h>
 
 BEGIN_SHADER_NODE_NAMESPACE
 /**
  * 最终节点，用于最终结果的一类节点，无输出部分
  */
-class Finished:public Input
+class Finished:public Node
 {
 public:
 
-    using Input::Input;
+    using Node::Node;
     virtual ~Finished()=default;
 };//class Finished:public Input
 
@@ -25,7 +25,10 @@ public:
 
     VertexFinished():Finished("Vertex Output")
     {
+        SHADER_INPUT_PARAM(Position,   Float3)
     }
+
+    ~VertexFinished()=default;
 };//class VertexFinished:public FinishedNode
 
 /**
@@ -37,13 +40,15 @@ public:
 
     FragmentFinished():Finished("Fragment Output")
     {
-        SHADER_INPUT_PARAM(BaseColor,   FLOAT_3)
-        SHADER_INPUT_PARAM(Normal,      FLOAT_3)
-        SHADER_INPUT_PARAM(Metallic,    FLOAT_1)
-        SHADER_INPUT_PARAM(Roughness,   FLOAT_1)
-        SHADER_INPUT_PARAM(Opacity,     FLOAT_1)
-        SHADER_INPUT_PARAM(DepthOffset, FLOAT_1)
+        SHADER_INPUT_PARAM(BaseColor,   Float3)
+        SHADER_INPUT_PARAM(Normal,      Float3)
+        SHADER_INPUT_PARAM(Metallic,    Float1)
+        SHADER_INPUT_PARAM(Roughness,   Float1)
+        SHADER_INPUT_PARAM(Opacity,     Float1)
+        SHADER_INPUT_PARAM(DepthOffset, Float1)
     }
+
+    ~FragmentFinished()=default;
 };//class FragmentFinished:public Finished
 END_SHADER_NODE_NAMESPACE
 #endif//HGL_GRAPH_SHADER_NODE_FINISHED_INCLUDE
diff --git a/inc/hgl/graph/shader/node/in.h b/inc/hgl/graph/shader/node/in.h
deleted file mode 100644
index e84d57aa..00000000
--- a/inc/hgl/graph/shader/node/in.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifndef HGL_GRAPH_SHADER_NODE_INPUT_INCLUDE
-#define HGL_GRAPH_SHADER_NODE_INPUT_INCLUDE
-
-#include<hgl/graph/shader/node/node.h>
-#include<hgl/graph/shader/param/in.h>
-
-BEGIN_SHADER_NODE_NAMESPACE
-/**
- * 纯输入节点
- */
-class Input:public Node
-{
-protected:
-
-    ObjectList<param::InputParam> input_params;
-
-public:
-
-    using Node::Node;
-    virtual ~Input()=default;
-};//class InputNode
-END_SHADER_NODE_NAMESPACE
-#endif//HGL_GRAPH_SHADER_NODE_INPUT_INCLUDE
diff --git a/inc/hgl/graph/shader/node/inout.h b/inc/hgl/graph/shader/node/inout.h
deleted file mode 100644
index a452f4d3..00000000
--- a/inc/hgl/graph/shader/node/inout.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef HGL_GRAPH_SHADER_NODE_INOUT_INCLUDE
-#define HGL_GRAPH_SHADER_NODE_INOUT_INCLUDE
-
-#include<hgl/graph/shader/node/node.h>
-#include<hgl/graph/shader/param/in.h>
-#include<hgl/graph/shader/param/out.h>
-BEGIN_SHADER_NODE_NAMESPACE
-/**
- * 输入输出节点
- */
-class InputOutput:public Node
-{
-protected:
-
-    ObjectList<InputParam> input_params;
-    ObjectList<OutputParam> output_params;
-
-public:
-
-    using Node::Node;
-    virtual ~InputOutput()=default;
-};//class InputOutput:public Node
-END_SHADER_NODE_NAMESPACE
-#endif//HGL_GRAPH_SHADER_NODE_INOUT_INCLUDE
diff --git a/inc/hgl/graph/shader/node/node.h b/inc/hgl/graph/shader/node/node.h
index cd7c8bae..6ea78094 100644
--- a/inc/hgl/graph/shader/node/node.h
+++ b/inc/hgl/graph/shader/node/node.h
@@ -12,12 +12,29 @@ BEGIN_SHADER_NODE_NAMESPACE
 class Node
 {
     UTF8String type_name;                                                   ///<节点类型本身的名称
+
+protected:
+
     UTF8String name;                                                        ///<节点用户自定义名称
 
+    ObjectList<param::InputParam> input_params;
+    ObjectList<param::OutputParam> output_params;
+
 public:
 
     Node(const UTF8String &n){type_name=n;}
     virtual ~Node()=default;
+
+    const UTF8String &  GetTypename()const{return type_name;}
+
+    const UTF8String &  GetName()const{return name;}
+    void                SetName(const UTF8String &n){name=n;}
+    
+public: //参数相关
+
+    virtual bool IsOutputParam(param::OutputParam *);
+
+    virtual bool CheckInputParam();
 };//class Node
 END_SHADER_NODE_NAMESPACE
 #endif//HGL_GRAPH_SHADER_NODE_INCLUDE
diff --git a/inc/hgl/graph/shader/node/out.h b/inc/hgl/graph/shader/node/out.h
deleted file mode 100644
index fdd2c5ed..00000000
--- a/inc/hgl/graph/shader/node/out.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifndef HGL_GRAPH_SHADER_NODE_OUTPUT_INCLUDE
-#define HGL_GRAPH_SHADER_NODE_OUTPUT_INCLUDE
-
-#include<hgl/graph/shader/node/node.h>
-#include<hgl/graph/shader/param/out.h>
-BEGIN_SHADER_NODE_NAMESPACE
-/**
- * 纯输出节点，用于固定行为的向下一级节点输入数据，无输入部分
- */
-class Output:public Node
-{
-protected:
-
-    ObjectList<OutputParam> output_params;
-
-public:
-
-    using Node::Node;
-    virtual ~Output()=default;
-};//class Output:public Node
-END_SHADER_NODE_NAMESPACE
-#endif//HGL_GRAPH_SHADER_NODE_OUTPUT_INCLUDE
diff --git a/inc/hgl/graph/shader/param/data.h b/inc/hgl/graph/shader/param/data.h
new file mode 100644
index 00000000..f341ff50
--- /dev/null
+++ b/inc/hgl/graph/shader/param/data.h
@@ -0,0 +1,28 @@
+#ifndef HGL_GRAPH_SHADER_PARAM_DATA_INCLUDE
+#define HGL_GRAPH_SHADER_PARAM_DATA_INCLUDE
+
+#include<hgl/graph/shader/param/type.h>
+
+BEGIN_SHADER_PARAM_NAMESPACE
+class ParamData
+{
+    ParamType type;
+
+public:
+
+    ParamData();
+    virtual ~ParamData();
+
+    /**
+     * 比较当前类型是否接收外部参数的输入
+     * @param in 外部传入的参数
+     */
+    virtual bool JoinCheck(const ParamData *in)
+    {
+        if(!in)return(false);
+
+        return(type==in->type);
+    }
+};//class ParamData
+END_SHADER_PARAM_NAMESPACE
+#endif//HGL_GRAPH_SHADER_PARAM_DATA_INCLUDE
diff --git a/inc/hgl/graph/shader/param/in.h b/inc/hgl/graph/shader/param/in.h
index 7fa6a089..60a556b7 100644
--- a/inc/hgl/graph/shader/param/in.h
+++ b/inc/hgl/graph/shader/param/in.h
@@ -1,6 +1,8 @@
 #ifndef HGL_GRAPH_SHADER_PARAM_INPUT_INCLUDE
 #define HGL_GRAPH_SHADER_PARAM_INPUT_INCLUDE
 
+#include<hgl/graph/shader/node/node.h>
+#include<hgl/graph/shader/param/out.h>
 #include<hgl/graph/shader/param/param.h>
 
 BEGIN_SHADER_PARAM_NAMESPACE
@@ -12,24 +14,19 @@ BEGIN_SHADER_PARAM_NAMESPACE
  */
 class InputParam:public Param
 {
+    node::Node *input_node;
+    param::OutputParam *output_param;
+
 public:
 
     using Param::Param;
     virtual ~InputParam()=default;
+
+    virtual bool Join(node::Node *,OutputParam *);          ///<增加一个输入节点
+    virtual void Break();                                   ///<断开一个输入节点
+
+    virtual bool Check();                                   ///<检测当前节点是否可用
 };//class InputParam:public Param
 
-/**
- * 数值类输入参数定义
- */
-template<typename T>
-class InputParamNumber:public InputParam
-{
-    bool is_const;
-    T min_value;
-    T max_value;
-
-public:
-};//class InputParamNumber:public InputParam
-
 END_SHADER_PARAM_NAMESPACE
 #endif//#ifndef HGL_GRAPH_SHADER_PARAM_INPUT_INCLUDE
diff --git a/inc/hgl/graph/shader/param/out.h b/inc/hgl/graph/shader/param/out.h
index f8f8323f..63ffea79 100644
--- a/inc/hgl/graph/shader/param/out.h
+++ b/inc/hgl/graph/shader/param/out.h
@@ -1,8 +1,7 @@
 #ifndef HGL_GRAPH_SHADER_PARAM_OUTPUT_INCLUDE
 #define HGL_GRAPH_SHADER_PARAM_OUTPUT_INCLUDE
 
-#include<hgl/graph/shader/param/in.h>
-#include<hgl/graph/shader/node/node.h>
+#include<hgl/graph/shader/param/param.h>
 #include<hgl/type/Set.h>
 #include<hgl/type/Pair.h>
 
@@ -10,8 +9,6 @@ BEGIN_SHADER_PARAM_NAMESPACE
 
 using namespace hgl;
 
-using InputNode=Pair<node::Node *,InputParam *>;
-
 #define SHADER_OUTPUT_PARAM(name,type) output_params.Add(new SHADER_PARAM_NAMESPACE::Param(#name,SHADER_PARAM_NAMESPACE::ParamType::type));
 
 /**
@@ -19,16 +16,11 @@ using InputNode=Pair<node::Node *,InputParam *>;
  */
 class OutputParam:public Param
 {
-    Set<InputNode> join_param;                              //对应的多个输入节点
 
 public:
 
     using Param::Param;
     virtual ~OutputParam()=default;
-
-    bool Join(node::Node *,InputParam *ip);                 //增加一个输入节点
-    void Break(node::Node *,InputParam *ip);                //断开一个输入节点
-    void BreakAll();                                        //断开所有输入节点
 };//class OutputParam:public Param
 
 END_SHADER_PARAM_NAMESPACE
diff --git a/inc/hgl/graph/shader/param/param.h b/inc/hgl/graph/shader/param/param.h
index 6b920a36..fa1d25e8 100644
--- a/inc/hgl/graph/shader/param/param.h
+++ b/inc/hgl/graph/shader/param/param.h
@@ -5,87 +5,23 @@
 #include<hgl/graph/shader/common.h>
 
 BEGIN_SHADER_PARAM_NAMESPACE
-    /**
-     * 参数类型
-     */
-    enum class ParamType
+/**
+ * 参数定义
+ */
+class Param
+{
+    UTF8String name;            //参数名称
+    ParamType type;             //类型
+
+public:
+
+    Param(const UTF8String &n,const ParamType &t)
     {
-        BOOL=1,
-
-        FLOAT,INT,UINT,MATRIX,          //不区分1/2/3/4通道数量的类型
-
-        FLOAT_1,
-        FLOAT_2,
-        FLOAT_3,
-        FLOAT_4,
-
-        INT_1,
-        INT_2,
-        INT_3,
-        INT_4,
-
-        UINT_1,
-        UINT_2,
-        UINT_3,
-        UINT_4,
-
-        MAT3x3,
-        MAT3x4,
-        MAT4x4,
-
-        TEXTURE_1D,
-        TEXTURE_2D,
-        TEXTURE_3D,
-        TEXTURE_CUBE,
-
-        TEXTURE_1D_ARRAY,
-        TEXTURE_2D_ARRAY,
-        TEXTURE_CUBE_ARRAY,
-
-        FLOAT_1_STREAM,
-        FLOAT_2_STREAM,
-        FLOAT_3_STREAM,
-        FLOAT_4_STREAM,
-
-        INT_1_STREAM,
-        INT_2_STREAM,
-        INT_3_STREAM,
-        INT_4_STREAM,
-
-        UINT_1_STREAM,
-        UINT_2_STREAM,
-        UINT_3_STREAM,
-        UINT_4_STREAM,
-
-        ARRAY_1D,               //阵列
-        ARRAY_2D,               //2D阵列
-
-        UBO,                    //UBO name
-        NODE,                   //另一个节点，只可做为输入参数
-
-        BEGIN_RANGE =FLOAT_1,
-        END_RANGE   =NODE,
-        RANGE_SIZE  =(END_RANGE-BEGIN_RANGE+1)
-    };//enum class ParamType
-
-    /**
-     * 参数定义
-     */
-    class Param
-    {
-        UTF8String name;            //参数名称
-        ParamType type;             //类型
-
-    public:
-
-        Param(const UTF8String &n,const ParamType &t)
-        {
-            name=n;
-            type=t;
-        }
-
-        virtual ~Param()=default;
-    };//class Param
+        name=n;
+        type=t;
+    }
 
+    virtual ~Param()=default;
+};//class Param
 END_SHADER_PARAM_NAMESPACE
 #endif//HGL_GRAPH_SHADER_PARAM_INCLUDE
diff --git a/inc/hgl/graph/shader/param/type.h b/inc/hgl/graph/shader/param/type.h
new file mode 100644
index 00000000..63679f3d
--- /dev/null
+++ b/inc/hgl/graph/shader/param/type.h
@@ -0,0 +1,72 @@
+#ifndef HGL_GRAPH_SHADER_PARAM_INCLUDE
+#define HGL_GRAPH_SHADER_PARAM_INCLUDE
+
+#include<hgl/graph/shader/common.h>
+
+BEGIN_SHADER_PARAM_NAMESPACE
+/**
+ * 参数类型
+ */
+enum class ParamType
+{
+    BOOL=1,
+
+    FLOAT,INT,UINT,MATRIX,          //不区分1/2/3/4通道数量的类型
+
+    Float1,
+    Float2,
+    Float3,
+    Float4,
+
+    Integer1,
+    Integer2,
+    Integer3,
+    Integer4,
+
+    UInteger1,
+    UInteger2,
+    UInteger3,
+    UInteger4,
+
+    Matrix3x3,
+    Matrix3x4,
+    Matrix4x4,
+
+    Texture1D,
+    Texture2D,
+    Texture3D,
+    TextureCube,
+    TextureRect,
+
+    Texture1DArray,
+    Texture2DArray,
+    TextureCubeArray,
+
+    FLOAT_1_STREAM,
+    FLOAT_2_STREAM,
+    FLOAT_3_STREAM,
+    FLOAT_4_STREAM,
+
+    INT_1_STREAM,
+    INT_2_STREAM,
+    INT_3_STREAM,
+    INT_4_STREAM,
+
+    UINT_1_STREAM,
+    UINT_2_STREAM,
+    UINT_3_STREAM,
+    UINT_4_STREAM,
+
+    ARRAY_1D,               //阵列
+    ARRAY_2D,               //2D阵列
+
+    UBO,                    //UBO name
+    NODE,                   //另一个节点，只可做为输入参数
+
+    BEGIN_RANGE =Float1,
+    END_RANGE   =NODE,
+    RANGE_SIZE  =(END_RANGE-BEGIN_RANGE+1)
+};//enum class ParamType
+END_SHADER_PARAM_NAMESPACE
+#endif//HGL_GRAPH_SHADER_PARAM_INCLUDE
+
diff --git a/src/RenderDevice/Shader/CMakeLists.txt b/src/RenderDevice/Shader/CMakeLists.txt
index d2702032..0916edde 100644
--- a/src/RenderDevice/Shader/CMakeLists.txt
+++ b/src/RenderDevice/Shader/CMakeLists.txt
@@ -1,16 +1,22 @@
-SET(GRAPH_SHADER_HEADER_PATH ${ROOT_INCLUDE_PATH}/hgl/graph/shader)
-SET(GRAPH_SHADER_NODE_PATH ${GRAPH_SHADER_HEADER_PATH}/node)
-SET(GRAPH_SHADER_PARAM_PATH ${GRAPH_SHADER_HEADER_PATH}/param)
+SET(GRAPH_SHADER_HEADER_PATH ${ROOT_INCLUDE_PATH}/hgl/graph/shader)
+SET(GRAPH_SHADER_NODE_HEADER_PATH ${GRAPH_SHADER_HEADER_PATH}/node)
+SET(GRAPH_SHADER_PARAM_HEADER_PATH ${GRAPH_SHADER_HEADER_PATH}/param)
 
-file(GLOB GRAPH_SHADER_NODE_HEADER_FILES ${GRAPH_SHADER_NODE_PATH}/*.h)
+file(GLOB GRAPH_SHADER_NODE_HEADER_FILES ${GRAPH_SHADER_NODE_HEADER_PATH}/*.h)
+file(GLOB GRAPH_SHADER_PARAM_HEADER_FILES ${GRAPH_SHADER_PARAM_HEADER_PATH}/*.h)
 
-source_group("Shader Maker\\Node" FILES ${GRAPH_SHADER_NODE_HEADER_FILES})
+file(GLOB GRAPH_SHADER_NODE_SOURCE_FILES FILES node/*.*)
+file(GLOB GRAPH_SHADER_PARAM_SOURCE_FILES FILES param/*.*)
 
-file(GLOB GRAPH_SHADER_PARAM_HEADER_FILES ${GRAPH_SHADER_PARAM_PATH}/*.h)
+SET(GRAPH_SHADER_NODE_FILES ${GRAPH_SHADER_NODE_HEADER_FILES} ${GRAPH_SHADER_NODE_SOURCE_FILES})
+SET(GRAPH_SHADER_PARAM_FILES ${GRAPH_SHADER_PARAM_HEADER_FILES} ${GRAPH_SHADER_PARAM_SOURCE_FILES})
 
-source_group("Shader Maker\\Param" FILES ${GRAPH_SHADER_PARAM_HEADER_FILES})
+source_group("Shader Maker\\Node" FILES ${GRAPH_SHADER_NODE_FILES})
+source_group("Shader Maker\\Param" FILES ${GRAPH_SHADER_PARAM_FILES})
 
-SET(GRAPH_SHADER_MAKER_SOURCE DefaultShader.cpp)
+SET(GRAPH_SHADER_MAKER_SOURCE   ${GRAPH_SHADER_HEADER_PATH}/ShaderMaker.h
+                                ShaderMaker.cpp
+                                DefaultShader.cpp)
 
 source_group("Shader Maker" FILES ${GRAPH_SHADER_MAKER_SOURCE})
 
@@ -20,8 +26,8 @@ SET(GRAPH_SPV_SOURCE    ${GRAPH_SHADER_HEADER_PATH}/glsl2spv.h
 SOURCE_GROUP("SPIR-V" FILES ${GRAPH_SPV_SOURCE})
 
 add_cm_library(ULRE.Shader "ULRE"   ${GRAPH_SHADER_HEADER_PATH}/common.h
-                                    ${GRAPH_SHADER_NODE_HEADER_FILES}
-                                    ${GRAPH_SHADER_PARAM_HEADER_FILES}
+                                    ${GRAPH_SHADER_NODE_FILES}
+                                    ${GRAPH_SHADER_PARAM_FILES}
                                     ${GRAPH_SHADER_MAKER_SOURCE}
                                     ${GRAPH_SPV_SOURCE})
-                                    
+
diff --git a/src/RenderDevice/Shader/DefaultShader.cpp b/src/RenderDevice/Shader/DefaultShader.cpp
index 208846b9..f4c90326 100644
--- a/src/RenderDevice/Shader/DefaultShader.cpp
+++ b/src/RenderDevice/Shader/DefaultShader.cpp
@@ -1,11 +1,21 @@
-#include<hgl/graph/shader/param/out.h>
+#include<hgl/graph/shader/param/in.h>
+#include<hgl/graph/shader/param/out.h>
 #include<hgl/graph/shader/node/finished.h>
+#include<hgl/graph/shader/ShaderMaker.h>
+
 BEGIN_SHADER_NAMESPACE
 bool CreateDefaultMaterial()
 {
-    node::Finished *vs_fin=new node::VertexFinished();
-    node::Finished *fs_fin=new node::ForwardFinished();
+    ShaderMaker vs_maker(new node::VertexFinished());
 
-    return(false);
+    if(!vs_maker.Make())
+        return(false);
+
+    ShaderMaker fs_maker(new node::FragmentFinished());
+
+    if(!fs_maker.Make())
+        return(false);
+
+    return(true);
 }
 END_SHADER_NAMESPACE
diff --git a/src/RenderDevice/Shader/ShaderMaker.cpp b/src/RenderDevice/Shader/ShaderMaker.cpp
new file mode 100644
index 00000000..efd39971
--- /dev/null
+++ b/src/RenderDevice/Shader/ShaderMaker.cpp
@@ -0,0 +1,14 @@
+#include<hgl/graph/shader/ShaderMaker.h>
+
+BEGIN_SHADER_NAMESPACE
+bool ShaderMaker::Make()
+{
+    if(!fin_node)
+        return(false);
+
+    if(!fin_node->CheckInputParam())
+        return(false);
+
+    return(true);
+}
+END_SHADER_NAMESPACE
diff --git a/src/RenderDevice/Shader/node/shader_node.cpp b/src/RenderDevice/Shader/node/shader_node.cpp
new file mode 100644
index 00000000..7b72dba1
--- /dev/null
+++ b/src/RenderDevice/Shader/node/shader_node.cpp
@@ -0,0 +1,17 @@
+#include<hgl/graph/shader/node/node.h>
+
+BEGIN_SHADER_NODE_NAMESPACE
+bool Node::CheckInputParam()
+{
+    const int count=input_params.GetCount();
+    param::InputParam **ip=input_params.GetData();
+
+    for(int i=0;i<count;i++)
+        if(!(*ip)->Check())
+            return(false);
+        else
+            ++ip;
+
+    return(true);
+}
+END_SHADER_NODE_NAMESPACE
diff --git a/src/RenderDevice/Shader/param/shader_param_in.cpp b/src/RenderDevice/Shader/param/shader_param_in.cpp
new file mode 100644
index 00000000..5bce3872
--- /dev/null
+++ b/src/RenderDevice/Shader/param/shader_param_in.cpp
@@ -0,0 +1,24 @@
+#include<hgl/graph/shader/param/in.h>
+
+BEGIN_SHADER_PARAM_NAMESPACE
+bool InputParam::Join(node::Node *n,OutputParam *op)
+{
+    if(!n||!op)return(false);
+
+    if(!n->IsOutputParam(op))
+        return(false);
+
+    input_node=n;
+    output_param=op;
+
+    return(true);
+}
+
+void InputParam::Break()
+{
+}
+
+bool InputParam::Check()
+{
+}
+END_SHADER_PARAM_NAMESPACE