diff --git a/Makefile b/Makefile
index 6dae268..1c0ed9c 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ OBJ = \
 CFLAGS = \
 	-I./ext/cglm/include  \
 	-I./ext/glfw/include  \
-	-Wall -Wno-unused-function -std=c99  \
+	-Wall -Wno-unused-function -std=c99 \
 
 WAYLAND-LIB = \
 	xdg-shell \
diff --git a/src/data/shaders.h b/src/data/shaders.h
index 40b5ef4..8d8da0c 100644
--- a/src/data/shaders.h
+++ b/src/data/shaders.h
@@ -1,8 +1,14 @@
 const char * vs =
 	"#version 330 core\n"
 
-	"layout (location = 0) in vec3 aPos;"
-	"layout (location = 1) in vec3 aNormal;"
+	"layout (location = 0) in float aPos_x;"
+	"layout (location = 1) in float aPos_y;"
+	"layout (location = 2) in float aPos_z;"
+	"layout (location = 3) in float aPos_w;"
+	"layout (location = 4) in float aNormal_x;"
+	"layout (location = 5) in float aNormal_y;"
+	"layout (location = 6) in float aNormal_z;"
+	"layout (location = 7) in float aNormal_w;"
 
 	"uniform float idx;"
 	"uniform mat4 fix;"
@@ -16,6 +22,8 @@ const char * vs =
 	"void main()"
 	"{"
 	"	index=idx;"
+	"	vec3 aNormal = vec3(aNormal_x,aNormal_y,aNormal_z);"
+	"	vec3 aPos = vec3(aPos_x,aPos_y,aPos_z);"
 	"	Normal = mat3(transpose(inverse(rot*mdl))) * aNormal;"
 	"	gl_Position = fix * rot * mdl * vec4( aPos, 1.0 );\n"
 	"	FragPos = vec3( rot * mdl * vec4(aPos, 1.0));"
diff --git a/src/input.c b/src/input.c
index b761aa2..5b80e03 100644
--- a/src/input.c
+++ b/src/input.c
@@ -1,6 +1,7 @@
 #include "main.h"
 #include <cglm/quat.h>
 #include <GLFW/glfw3.h>
+#include <stdio.h>
 
 #define ANGLE ((float)0x01/0xff*2*GLM_PI)
 
@@ -17,6 +18,17 @@ vec3 axis[3] =
 	{0, 0, 1},
 };
 
+void __key_callback(GLFWwindow * window, int key, int scancode, int action, int mods )
+{
+	if( action != GLFW_PRESS)
+		return;
+
+	if( GLFW_KEY_0 <= key && key <= GLFW_KEY_9 )
+	{
+		printf("%d\n", key-GLFW_KEY_0 );
+	}
+}
+
 void __window_callback(GLFWwindow * window, int w, int h)
 {
 	int m;
@@ -37,8 +49,8 @@ void __mouse_callback(GLFWwindow* window, int button, int action, int mods)
 	    	return;
 
 	glfwGetCursorPos(window, &xpos, &ypos);
-	glReadPixels((int)xpos, (int)(window_height - ypos), 1, 1, GL_GREEN, GL_UNSIGNED_BYTE, &green_value);
-
+	glReadPixels((int)xpos, (int)(window_height - ypos), 1, 1, GL_GREEN, 
+		GL_UNSIGNED_BYTE, &green_value);
 
 	switch(green_value)
 	{
diff --git a/src/main.c b/src/main.c
index 297318d..93599f8 100755
--- a/src/main.c
+++ b/src/main.c
@@ -9,6 +9,8 @@
 #define WIDTH 512
 #define HEIGHT 512
 
+unsigned char coordanate[4] = {0,1,2,3};
+
 unsigned char palette[] =
 {
 	16,
@@ -82,7 +84,7 @@ int main( void )
 	{
 		float * n_cube;
 		n_cube = fill_normal( d_cube );
-		if( !( m_cube = create_mesh( d_cube, n_cube ) ) )
+		if( !( m_cube = create_mesh( d_cube, n_cube, coordanate ) ) )
 			goto error_mesh_cube; 
 		free( n_cube );
 	}
@@ -91,7 +93,7 @@ int main( void )
 	{
 		float * n_axis;
 		n_axis = fill_normal( d_axis );
-		if( !( m_axis = create_mesh( d_axis, n_axis ) ) )
+		if( !( m_axis = create_mesh( d_axis, n_axis, coordanate ) ) )
 			goto error_mesh_axis; 
 		free( n_axis );
 	}
diff --git a/src/main.h b/src/main.h
index 71057cf..155af45 100644
--- a/src/main.h
+++ b/src/main.h
@@ -22,7 +22,7 @@ int is_open_window(window_t window);
 
 void close_window(window_t window);
 
-mesh_t create_mesh( float * d, float * n);
+mesh_t create_mesh( float * d, float * n, unsigned char * coordanate );
 
 void destroy_mesh(mesh_t p);
 
diff --git a/src/mesh.c b/src/mesh.c
index 7ba7f28..da44e3b 100755
--- a/src/mesh.c
+++ b/src/mesh.c
@@ -7,7 +7,7 @@ struct obj
 	unsigned int vertex, vao, n_vbo, d_vbo;
 };
 
-mesh_t create_mesh( float * d, float * n )
+mesh_t create_mesh( float * d, float * n, unsigned char * coordanate )
 {
 	struct obj * p;
 
@@ -22,15 +22,27 @@ mesh_t create_mesh( float * d, float * n )
 	glBindBuffer( GL_ARRAY_BUFFER, p->d_vbo );
 	glBufferData( GL_ARRAY_BUFFER, p->vertex*3*sizeof(float), d+1, 
 		GL_STATIC_DRAW );
-	glVertexAttribPointer( 0,3,GL_FLOAT, 0, 3*sizeof(float), NULL );
+	glVertexAttribPointer( 0,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[0]*sizeof(float)) );
 	glEnableVertexAttribArray(0);
+	glVertexAttribPointer( 1,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[1]*sizeof(float)) );
+	glEnableVertexAttribArray(1);
+	glVertexAttribPointer( 2,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[2]*sizeof(float)) );
+	glEnableVertexAttribArray(2);
+	glVertexAttribPointer( 3,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[3]*sizeof(float)) );
+	glEnableVertexAttribArray(3);
 
 	glGenBuffers( 1, &p->n_vbo );
 	glBindBuffer( GL_ARRAY_BUFFER, p->n_vbo );
 	glBufferData( GL_ARRAY_BUFFER, p->vertex*3*sizeof(float), n+1, 
 		GL_STATIC_DRAW );
-	glVertexAttribPointer( 1,3,GL_FLOAT, 0, 3*sizeof(float), NULL );
-	glEnableVertexAttribArray(1);
+	glVertexAttribPointer( 4,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[0]*sizeof(float)) );
+	glEnableVertexAttribArray(4);
+	glVertexAttribPointer( 5,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[1]*sizeof(float)) );
+	glEnableVertexAttribArray(5);
+	glVertexAttribPointer( 6,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[2]*sizeof(float)) );
+	glEnableVertexAttribArray(6);
+	glVertexAttribPointer( 7,1,GL_FLOAT, 0, 3*sizeof(float), (float*)(coordanate[3]*sizeof(float)) );
+	glEnableVertexAttribArray(7);
 
 	return p;
 }
diff --git a/src/window.c b/src/window.c
index a02fb78..1ac027a 100644
--- a/src/window.c
+++ b/src/window.c
@@ -4,12 +4,11 @@
 void __window_callback(GLFWwindow *, int, int);
 void __mouse_callback(GLFWwindow *, int, int, int);
 void __scroll_callback(GLFWwindow *, double, double);
+void __key_callback(GLFWwindow *, int, int, int, int);
 
 window_t init_window(unsigned int w, unsigned int h, const char * name)
 {
 	void * window;
-	void __mouse_callback(GLFWwindow *window, int button, int action, int mods);
-	void __scroll_callback(GLFWwindow *window, double xoffset, double yoffset);
 
 	if( !glfwInit() )
 		return NULL;
@@ -29,6 +28,7 @@ window_t init_window(unsigned int w, unsigned int h, const char * name)
 	glfwSetWindowSizeCallback(window, __window_callback);
 	glfwSetMouseButtonCallback((GLFWwindow*)window, __mouse_callback);
 	glfwSetScrollCallback((GLFWwindow*)window, __scroll_callback);
+	glfwSetKeyCallback((GLFWwindow*)window, __key_callback);
 
 	__window_callback( window, w, h );