diff --git a/rules/batiment/batimentquadblock.cpp b/rules/batiment/batimentquadblock.cpp
index d4608ad..2882bcd 100644
--- a/rules/batiment/batimentquadblock.cpp
+++ b/rules/batiment/batimentquadblock.cpp
@@ -15,9 +15,22 @@ bool BatimentQuadBlock::split() {
     Quad mw = c;
     Quad mn = c;
 
-    me[NW] = me[NE] + ((me[NW] - me[NW]) / me.length(N))*150;
-    //TODO les autres côtés.
-    return false;
+    me[NW] = me[NE] + ((me[NW] - me[NE]) / me.length(N))*28;
+    me[SW] = me[SE] + ((me[SW] - me[SE]) / me.length(S))*28;
+    mw[NE] = mw[NW] + ((mw[NE] - mw[NW]) / mw.length(N))*28;
+    mw[SE] = mw[SW] + ((mw[SE] - mw[SW]) / mw.length(S))*28;
+    mn.inset(W,-28); mn.inset(E,-28);
+    mn[SW] = mn[NW] + ((mn[SW] - mn[NW]) / mn.length(W))*28;
+    mn[SE] = mn[NE] + ((mn[SE] - mn[NE]) / mn.length(E))*28;
+    ms.inset(W,-28); ms.inset(E,-28);
+    ms[NW] = ms[SW] + ((ms[NW] - ms[SW]) / ms.length(W))*28;
+    ms[NE] = ms[SE] + ((ms[NE] - ms[SE]) / ms.length(E))*28;
+
+    addChild(new BatimentQuadMur(me,height));
+    addChild(new BatimentQuadMur(mw,height));
+    addChild(new BatimentQuadMur(mn,height));
+    addChild(new BatimentQuadMur(ms,height));
+    return true;
 }
 
 void BatimentQuadBlock::triangulation() {
diff --git a/rules/batiment/batimentquadmur.cpp b/rules/batiment/batimentquadmur.cpp
index db32a96..4deda99 100644
--- a/rules/batiment/batimentquadmur.cpp
+++ b/rules/batiment/batimentquadmur.cpp
@@ -2,6 +2,7 @@
 
 BatimentQuadMur::BatimentQuadMur(Quad c, float height) : Chose(), c(c), height(height) {
 	addEntropy(c);
+	this->window = false;
 }
 
 void BatimentQuadMur::getBoundingBoxPoints() {
@@ -9,6 +10,25 @@ void BatimentQuadMur::getBoundingBoxPoints() {
 	addBBPoints(c + Vertex(0,0,height));
 }
 
-void BatimentQuadMur::triangulation() {
-    addGPUOcto(c, c + Vertex(0,0,height), 0xF1, 0xE0, 0xE0);
+void BatimentQuadMur::setWindow(Quad w) {
+    this->windowPos = w;
+    this->window = true;
+}
+
+bool BatimentQuadMur::split() {
+    if(!window)
+        return false;
+
+    Quad left = c;
+    Quad right = c;
+    Quad top = c;
+    Quad bottom = c;
+
+
+    return true;
+}
+
+void BatimentQuadMur::triangulation() {
+    //addGPUOcto(c, c + Vertex(0,0,height), 0xF1, 0xE0, 0xE0);
+    addGPUOcto(c, c + Vertex(0,0,height), 0x60, 0x60, 0xFF);
 }
diff --git a/rules/batiment/batimentquadmur.hh b/rules/batiment/batimentquadmur.hh
index 2be5581..331d7eb 100644
--- a/rules/batiment/batimentquadmur.hh
+++ b/rules/batiment/batimentquadmur.hh
@@ -7,12 +7,16 @@ class BatimentQuadMur: public Chose {
     private :
 	Quad c;
 	float height;
+	bool window;        // Contient une fenêtre ou non.
+	Quad windowPos;
 
     public :
 
 	BatimentQuadMur(Quad c, float height);
 	virtual void triangulation();
+	virtual bool split();
 	virtual void getBoundingBoxPoints();
+	void setWindow(Quad);
 };
 
 #endif