diff --git a/Makefile b/Makefile
index b0ce13a..6dae268 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 \
@@ -38,6 +38,8 @@ help:
 	@echo "Para ejecturar el programa sin instalarlos se puede usar:"
 	@echo "	$(MAKE) run-linux"
 
+src/main.o: src/data/axis.h src/data/cube.h src/data/shaders.h
+
 # WINDOWS
 windows: $(OBJ) glfw.dll
 	$(CC) $(CFLAGS) $(OBJ) -o $(BIN) -L. -lglfw -lopengl32 -lglew32 
@@ -62,15 +64,13 @@ cocoa: $(OBJ)
 	$(MAKE) BKN=_GLFW_COCOA libglfw.so
 	$(CC) -framework OpenGL -o $(BIN) $(OBJ) -L. -lGLEW -lGL -lglfw 
 
-libglfw.so:  wayland.h
-	$(CC) -fPIC -shared -D$(BKN) -D_GLFW_BUILD_DLL -Iext/glfw/deps/wayland ./ext/glfw/src/*.c -o $@ 
-
-wayland.h:
+libglfw.so: 
 	for i in $(WAYLAND-LIB); \
 	do  \
 		wayland-scanner client-header ext/glfw/deps/wayland/$$i.xml ext/glfw/deps/wayland/$$i-client-protocol.h; \
 		wayland-scanner private-code ext/glfw/deps/wayland/$$i.xml ext/glfw/deps/wayland/$$i-client-protocol-code.h; \
 	done
+	$(CC) -fPIC -shared -D$(BKN) -D_GLFW_BUILD_DLL -Iext/glfw/deps/wayland ./ext/glfw/src/*.c -o $@ 
 
 clean:
 	rm $(OBJ) $(BIN) ext/glfw/deps/wayland/*.h
diff --git a/src/context.c b/src/context.c
index 40b19cb..32b1f18 100644
--- a/src/context.c
+++ b/src/context.c
@@ -4,6 +4,9 @@
 void set_clean_color_context( unsigned char r, unsigned char g, unsigned char b )
 {
 	glEnable( GL_DEPTH_TEST );
+	glEnable( GL_CULL_FACE );
+	glCullFace( GL_BACK );
+
 	glClearColor( (float)r/0xff, (float)g/0xff, (float)b/0xff, 1.0 );
 }
 
diff --git a/src/data/axis.h b/src/data/axis.h
index 7f76ea5..db4adce 100644
--- a/src/data/axis.h
+++ b/src/data/axis.h
@@ -7,39 +7,35 @@
 #undef G
 #undef H
 
-const float X = 2.0;
-const float Y = 0.05;
-const float Z = 0.05;
-
-#define A -X,-Y,-Z,
-#define B -X,-Y, Z,
-#define C -X, Y,-Z,
-#define D -X, Y, Z,
-#define E  X,-Y,-Z,
-#define F  X,-Y, Z,
-#define G  X, Y,-Z,
-#define H  X, Y, Z,
+#define A -2.0,-0.05,-0.05,
+#define B -2.0,-0.05, 0.05,
+#define C -2.0, 0.05,-0.05,
+#define D -2.0, 0.05, 0.05,
+#define E  2.0,-0.05,-0.05,
+#define F  2.0,-0.05, 0.05,
+#define G  2.0, 0.05,-0.05,
+#define H  2.0, 0.05, 0.05,
 
 narray_float_t d_axis =
 {
 	3*3*2*6,
 
 	A C E
-	C E G
+	G E D
 
 	E G F
-	G F H
+	H F G 
 
 	F H B
-	H B D
+	D B H
 
 	B D A
-	D A C
+	C A D 
 
 	C D G
-	D G H
+	H G D
 
-	A B E 
+	E B A 
 	B E F
 
 };
diff --git a/src/data/cube.h b/src/data/cube.h
index a6cbb1f..bfa2756 100644
--- a/src/data/cube.h
+++ b/src/data/cube.h
@@ -1,5 +1,3 @@
-#include <cglm/cglm.h>
-
 #define A -1,-1,-1,
 #define B -1,-1, 1,
 #define C -1, 1,-1,
@@ -9,43 +7,25 @@
 #define G  1, 1,-1,
 #define H  1, 1, 1,
 
-narray_float_t d_cube =
+float d_cube[] =
 {
 	3*3*2*6,
 
 	A C E
-	C E G
+	G E C
 
 	E G F
-	G F H
+	H F G
 
 	F H B
-	H B D
+	D B H
 
 	B D A
-	D A C
+	C A D 
 
 	C D G
-	D G H
+	H G D
 
-	A B E 
+	E B A
 	B E F
-
-    A C E
-    C E G
-    
-    E G F
-    G F H
-
-    F H B
-    H B D
-
-    B D A 
-    D A C
-
-    C D G 
-    D G H
-
-    A B E
-    B E F
 };
diff --git a/src/data/shaders.h b/src/data/shaders.h
index 180e159..8e22431 100644
--- a/src/data/shaders.h
+++ b/src/data/shaders.h
@@ -37,14 +37,12 @@ const char * fs =
 	"{"
 
 	"	vec4 color = texture( palette, vec3( 0, 0, index ) ).rgba;"
-	"	vec3 lightColor = vec3(1,1,1);"
-	"	vec3 lightPos = vec3(0,000,-15);"
+	"	vec3 lightPos = vec3(0,0,-15);"
 	"	vec3 lightDir = normalize(lightPos - FragPos);"
-	"	vec3 norm = normalize(Normal);"
 
-	"	float diffuse = max(dot(norm, lightDir), 0.0);"
+	"	float diffuse = max(dot(Normal, lightDir), 0.0);"
 	"	float ambient = 0.5;"
-	"	FragColor = vec4((ambient + diffuse)*lightColor,1.0)*color;"
+	"	FragColor = (ambient + diffuse)*color;"
 	"}";
 
 	
diff --git a/src/main.c b/src/main.c
index 0399574..2f6f8a4 100755
--- a/src/main.c
+++ b/src/main.c
@@ -3,7 +3,9 @@
 #include "data/axis.h"
 #include "data/shaders.h"
 #include <GL/glew.h>
- 
+#include <stdlib.h>
+#include <cglm/vec3.h>
+
 #define WIDTH 512
 #define HEIGHT 512
 
@@ -27,9 +29,11 @@ void calc_normal(float* v1, float* v2, float* v3, float* normal)
 	glm_vec3_normalize(normal);
 }
 
-void fill_normal( float * d, float * n )
+float * fill_normal( float * d )
 {
-	//*n = *d;
+	float * n;
+	n = malloc( (*d+1)*sizeof(float));
+	*n = *d;
 	for (int i = 0; i < *d; i += 9)
 	{
 
@@ -39,12 +43,14 @@ void fill_normal( float * d, float * n )
 		glm_vec3_copy( norm_vec, (n+1)+i+3 );
 		glm_vec3_copy( norm_vec, (n+1)+i+6 );
     	}
+    	return n;
 }
 
 const char * wname = "manigraph: manifold grapher";
 
 int main( void )
 {
+	float * n_cube, *n_axis;
 	id_t shader, texture;
 	mesh_t m_cube, m_axis;
 	window_t window;
@@ -57,8 +63,6 @@ int main( void )
 
 	glewInit(); 
 
-	fill_normal( d_cube, d_cube+(int)*d_cube);
-
 	if( !( shader = create_shader() ) )
 		goto error_shader;
 
@@ -68,12 +72,18 @@ int main( void )
 
 	load_fix_matrix( shader, (float)WIDTH/HEIGHT );
 
-	if( !( m_cube = create_mesh( d_cube ) ) )
+	n_cube = fill_normal( d_cube );
+	n_axis = fill_normal( d_axis );
+
+	if( !( m_cube = create_mesh( d_cube, n_cube ) ) )
 		goto error_mesh_cube; 
 
-	if( !( m_axis = create_mesh( d_axis ) ) )
+	if( !( m_axis = create_mesh( d_axis, n_axis ) ) )
 		goto error_mesh_axis; 
 
+	free( n_cube );
+	free( n_axis );
+
 	texture=create_palette_texture( palette );
 	use_texture( texture );
 
diff --git a/src/main.h b/src/main.h
index 1fb5ea4..8252e56 100644
--- a/src/main.h
+++ b/src/main.h
@@ -23,7 +23,7 @@ int is_open_window(window_t window);
 
 void close_window(window_t window);
 
-mesh_t create_mesh(narray_float_t mesh);
+mesh_t create_mesh( float * d, float * n);
 
 void destroy_mesh(mesh_t p);
 
diff --git a/src/matrix.c b/src/matrix.c
index eda0e0c..10a097a 100644
--- a/src/matrix.c
+++ b/src/matrix.c
@@ -13,14 +13,14 @@ mat4 ortho[] =
 	},
 	{
 		{ 0, 1, 0, 0 },
-		{ 1, 0, 0, 0 },
+		{-1, 0, 0, 0 },
 		{ 0, 0, 1, 0 },
 		{ 0, 0, 0, 1 },
 	},
 	{
 		{ 0, 0, 1, 0 },
 		{ 0, 1, 0, 0 },
-		{ 1, 0, 0, 0 },
+		{-1, 0, 0, 0 },
 		{ 0, 0, 0, 1 },
 	},
 };
diff --git a/src/mesh.c b/src/mesh.c
index d477d27..7ba7f28 100755
--- a/src/mesh.c
+++ b/src/mesh.c
@@ -4,10 +4,10 @@
 
 struct obj 
 {
-	unsigned int vertex, n_vao, d_vao, n_vbo, d_vbo;
+	unsigned int vertex, vao, n_vbo, d_vbo;
 };
 
-mesh_t create_mesh( narray_float_t d )
+mesh_t create_mesh( float * d, float * n )
 {
 	struct obj * p;
 
@@ -15,24 +15,23 @@ mesh_t create_mesh( narray_float_t d )
 
 	p->vertex=(*d)/3;
 
-	glGenVertexArrays( 1, &p->n_vao );
-	glGenVertexArrays( 1, &p->d_vao );
+	glGenVertexArrays( 1, &p->vao );
+
 	glGenBuffers( 1, &p->d_vbo );
-	glGenBuffers( 1, &p->n_vbo );
-
-	glBindVertexArray( p->d_vao );
+	glBindVertexArray( p->vao );
 	glBindBuffer( GL_ARRAY_BUFFER, p->d_vbo );
-	glBufferData( GL_ARRAY_BUFFER, 2*(p->vertex*3)*sizeof(float), d+1, 
+	glBufferData( GL_ARRAY_BUFFER, p->vertex*3*sizeof(float), d+1, 
 		GL_STATIC_DRAW );
-
 	glVertexAttribPointer( 0,3,GL_FLOAT, 0, 3*sizeof(float), NULL );
 	glEnableVertexAttribArray(0);
 
-
-	glVertexAttribPointer( 1,3,GL_FLOAT, *d, 3*sizeof(float), NULL );
+	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);
 
-
 	return p;
 }
 
@@ -40,8 +39,7 @@ void destroy_mesh( mesh_t p )
 {
 	struct obj * obj ;
 	obj = p;
-	glDeleteVertexArrays( 1, &obj->d_vao );
-	glDeleteVertexArrays( 1, &obj->n_vao );
+	glDeleteVertexArrays( 1, &obj->vao );
 	glDeleteBuffers( 1, &obj->d_vbo );
 	glDeleteBuffers( 1, &obj->n_vbo );
 	free( p );
@@ -51,7 +49,7 @@ void draw_mesh( mesh_t p )
 {
 	struct obj * obj=p;
 
-	glBindVertexArray( obj->d_vao );
+	glBindVertexArray( obj->vao );
 #ifdef DEBUG
 	{
 		int i;