diff --git a/quad.cpp b/quad.cpp
index b6fddd2..e53327f 100644
--- a/quad.cpp
+++ b/quad.cpp
@@ -22,7 +22,7 @@ void Quad::offsetNESW(int offsetN, int offsetE, int offsetS, int offsetW) {
     this->offset(W,offsetW);
 }
 
-void Quad::makeParallelogram() {
+Quad Quad::makeParallelogram() {
     int l1, l2;
 
     if(Segment(corner[NW],corner[NE]).length() < Segment(corner[SE],corner[SW]).length()) {
@@ -45,6 +45,8 @@ void Quad::makeParallelogram() {
             corner[NW] = corner[NE] + (corner[SW] - corner[SE]);
         }
     }
+
+    return Quad(corner[0],corner[1],corner[2],corner[3]);
 }
 
 int Quad::minLengthNS() {
diff --git a/quad.hh b/quad.hh
index 6382b87..5a1abd1 100644
--- a/quad.hh
+++ b/quad.hh
@@ -21,7 +21,7 @@ class Quad {
 	int maxLength();
 	float minAngle();
 	float maxAngle();
-	void makeParallelogram();
+	Quad makeParallelogram();
 };
 
 
diff --git a/rules/batiment/batimentquad.cpp b/rules/batiment/batimentquad.cpp
index 3e2c233..69e9dc2 100644
--- a/rules/batiment/batimentquad.cpp
+++ b/rules/batiment/batimentquad.cpp
@@ -43,7 +43,7 @@ Chose* BatimentQuad::factory(int seed, int n, Vertex ne, Vertex se, Vertex sw, V
 	int rand = this->seed % 20;
 
 	if(rand <= 2) {
-        Quad q = Quad(ne,se,sw,nw);
+        Quad q = Quad(ne,se,sw,nw).makeParallelogram();
         addChild(new BatimentQuadPont(lctr+q.corner[0],lctr+q.corner[1],lctr+q.corner[2],lctr+q.corner[3],300));
 	}
 	else if(rand <= 15) {
@@ -67,7 +67,6 @@ Chose* BatimentQuad::factory(int seed, int n, Vertex ne, Vertex se, Vertex sw, V
         q.corner[2] = q.corner[2] + Vertex(0,0,th);
         q.corner[3] = q.corner[3] + Vertex(0,0,th);
 
-        q.makeParallelogram();
         addChild(new BatimentQuadJardin(lctr+q.corner[0],lctr+q.corner[1],lctr+q.corner[2],lctr+q.corner[3]));
 
         q.offset(this->entry,-400);
@@ -81,14 +80,20 @@ Chose* BatimentQuad::factory(int seed, int n, Vertex ne, Vertex se, Vertex sw, V
 void BatimentQuad::triangulation() {
 	triangles.reserve(12);
 
+    //addTriangle(new Triangle(lctr+ne,lctr+nw,lctr+sw,0xFF,0xFF,0x00));
+	//addTriangle(new Triangle(lctr+sw,lctr+se,lctr+ne,0xFF,0xFF,0x00));
+
 	int h = hashInRange(seed,0,minHeight,maxHeight);
-	int htoit = hashInRange(seed,0,minHeight/2,maxHeight/2);
+	//int htoit = hashInRange(seed,0,minHeight/2,maxHeight/2);
 	Vertex neh = ne + Vertex(0,0,h);
 	Vertex seh = se + Vertex(0,0,h);
 	Vertex nwh = nw + Vertex(0,0,h);
 	Vertex swh = sw + Vertex(0,0,h);
-	Vertex toit = (neh + seh + nwh + swh) / 4 + Vertex(0,0,htoit);
+	//Vertex toit = (neh + seh + nwh + swh) / 4 + Vertex(0,0,htoit);
 
+    addOcto(lctr+ne,lctr+se,lctr+sw,lctr+nw,lctr+neh,lctr+seh,lctr+swh,lctr+nwh,0xFF,0xFF,0x00);
+
+/*
 	// 4 Murs
 	addTriangle(new Triangle(neh,seh,ne,0xf1,0xe3,0xad)); addTriangle(new Triangle(seh,se,ne,0xf1,0xe3,0xad)); // ne-se-seh-neh
 	addTriangle(new Triangle(seh,swh,se,0xf1,0xe3,0xad)); addTriangle(new Triangle(swh,sw,se,0xf1,0xe3,0xad)); // se-sw-swh-seh
@@ -100,4 +105,5 @@ void BatimentQuad::triangulation() {
 	addTriangle(new Triangle(seh,toit,swh,0x9a,0x48,0x3c));
 	addTriangle(new Triangle(swh,toit,nwh,0x9a,0x48,0x3c));
 	addTriangle(new Triangle(nwh,toit,neh,0x9a,0x48,0x3c));
+*/
 }
diff --git a/rules/chose.cpp b/rules/chose.cpp
index 5d7e33a..980e500 100644
--- a/rules/chose.cpp
+++ b/rules/chose.cpp
@@ -26,6 +26,16 @@ void Chose::addQuad(Vertex u, Vertex v, Vertex w, Vertex x, char r, char g, char
     this->addTriangle(new Triangle(w,v,u,r,g,b));
 }
 
+void Chose::addOcto(Vertex a, Vertex b, Vertex c, Vertex d,
+                    Vertex e, Vertex f, Vertex g, Vertex h, char red, char green, char blue) {
+    this->addQuad(d,c,b,a,red,green,blue);
+    this->addQuad(d,h,g,c,red,green,blue);
+    this->addQuad(c,g,f,b,red,green,blue);
+    this->addQuad(b,f,e,a,red,green,blue);
+    this->addQuad(a,e,h,d,red,green,blue);
+    this->addQuad(h,g,f,e,red,green,blue);
+}
+
 void Chose::display() {
 	if (children.size() > 0) {
 		std::vector<Chose*>::iterator it;
diff --git a/rules/chose.hh b/rules/chose.hh
index c0e71a4..06414c8 100644
--- a/rules/chose.hh
+++ b/rules/chose.hh
@@ -33,6 +33,7 @@ class Chose {
 	void addChild(Chose* c);
 	void addTriangle(Triangle* t);
 	void addQuad(Vertex u, Vertex v, Vertex w, Vertex x, char r, char g, char b);
+	void addOcto(Vertex a,Vertex b,Vertex c,Vertex d,Vertex e,Vertex f,Vertex g,Vertex h,char red,char green,char blue);
 	virtual void triangulation() = 0;
 	virtual std::vector<Vertex*> getBoundingBoxPoints() const = 0;
 
diff --git a/segment.cpp b/segment.cpp
index b3717ff..a7681a1 100644
--- a/segment.cpp
+++ b/segment.cpp
@@ -2,11 +2,11 @@
 
 Segment::Segment(Vertex u, Vertex v): u(u), v(v) {}
 
-int Segment::length() {
+float Segment::length() {
 	return (u-v).norm();
 }
 
-Segment Segment::reduce(int value) {
+Segment Segment::reduce(float value) {
     float reduc = (float)length()/(float)value;
     return Segment(u,u+((v - u) / reduc));
 }
diff --git a/segment.hh b/segment.hh
index 74cc8b4..ce4de8e 100644
--- a/segment.hh
+++ b/segment.hh
@@ -10,10 +10,10 @@ class Segment {
 
     public :
 	Segment(Vertex u, Vertex v);
-	int length();
+	float length();
 	int width();
 	int height();
-	Segment reduce(int value);
+	Segment reduce(float value);
 	Vertex randomPos(int seed, int n, int a, int b); // Renvoir un vertex sur le segment [u,v], à une position entre a% and b%.
 };