diff --git a/src/gui/PivotGui.cpp b/src/gui/PivotGui.cpp
index 2be47f7..d106069 100644
--- a/src/gui/PivotGui.cpp
+++ b/src/gui/PivotGui.cpp
@@ -5,73 +5,84 @@
 void PivotGui::Init() {}
 
 void PivotGui::Render() {
+    ImGuiIO& io = ImGui::GetIO();
 
-	ImGuiIO& io = ImGui::GetIO();
+    // divisions des fenetres
+    ImVec2 topLeftWindowSize(io.DisplaySize.x * 0.5f, io.DisplaySize.y * 0.8f);
+    ImVec2 topRightWindowSize(io.DisplaySize.x * 0.5f, io.DisplaySize.y * 0.8f);
+    ImVec2 bottomWindowSize(io.DisplaySize.x, io.DisplaySize.y * 0.2f);
 
-	// Our state
-	static bool show_demo_window = true;
-	static bool show_another_window = false;
-	// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about
-	// Dear ImGui!).
-	if (show_demo_window)
-		ImGui::ShowDemoWindow(&show_demo_window);
+    // Begin fenetre top left
+    ImGui::SetNextWindowSize(topLeftWindowSize);
+    ImGui::SetNextWindowPos(ImVec2(0, 0)); // Position at the top-left corner
+    ImGui::Begin("Left Top Window", nullptr, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoScrollbar);
 
-	// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window
-	static float f = 0.0f;
-	static int counter = 0;
+    // Get window position
+    ImVec2 windowPos = ImGui::GetWindowPos();
 
-	ImGui::Begin("Hello, world!");	// Create a window called "Hello, world!" and append into it.
+    ImGui::Text("Matrice initiale:");
 
-	ImGui::Text("This is some useful text.");			// Display some text (you can use a format strings too)
-	ImGui::Checkbox("Demo Window", &show_demo_window);	// Edit bools storing our window open/close state
-	ImGui::End();
+    // taille matrice
+    static int matrixSizeX = 4;
+    static int matrixSizeY = 4;
 
-	// 3. Interface of Pivot
-	ImVec4 bg_color = {0.18, 0.8, 1, 0.8};
-	ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoScrollbar;
-	ImVec2 window_pos = {0, 0};
-	ImVec2 window_size = ImGui::GetIO().DisplaySize;
-	ImVec2 vertical_spacing = {0, 40};
 
-	ImGui::SetNextWindowPos(window_pos);
-	ImGui::SetNextWindowSize(window_size);
-	ImGui::PushStyleColor(ImGuiCol_WindowBg, bg_color);
-	ImGui::Begin("Pivot", nullptr, window_flags);
+    ImGui::InputInt("##RowsMatriceInitiale", &matrixSizeY);
+    ImGui::SameLine();
+    ImGui::Text("Lignes");
 
-	ImGui::Text("Matrice :");
-	
-	ImGui::Dummy(vertical_spacing);
 
-	static char selected[4][4] = {{1, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}};
+    ImGui::InputInt("##ColumnsMatriceInitiale", &matrixSizeX);
+    ImGui::SameLine();
+    ImGui::Text("Colonnes");
 
-	// Add in a bit of silly fun...
-	const float time = (float)ImGui::GetTime();
+    // Draw matrix
+    ImGui::BeginChild("MatriceInitiale", ImVec2(topLeftWindowSize.x, io.DisplaySize.y * 0.7f), false);
 
-	for (int y = 0; y < 4; y++)
-		for (int x = 0; x < 4; x++) {
-			if (x > 0)
-				ImGui::SameLine();
-			ImGui::PushID(y * 4 + x);
-			if (ImGui::Selectable("?", selected[y][x] != 0, 0, ImVec2(50, 50))) {
-				// Toggle clicked cell + toggle neighbors
-				selected[y][x] ^= 1;
-				if (x > 0) {
-					selected[y][x - 1] ^= 1;
-				}
-				if (x < 3) {
-					selected[y][x + 1] ^= 1;
-				}
-				if (y > 0) {
-					selected[y - 1][x] ^= 1;
-				}
-				if (y < 3) {
-					selected[y + 1][x] ^= 1;
-				}
-			}
-			ImGui::PopID();
-		}
-	ImGui::PopStyleColor();
-	ImGui::End();
+    for (int y = 0; y < matrixSizeY; y++) {
+        for (int x = 0; x < matrixSizeX; x++) {
+            if (x > 0)
+                ImGui::SameLine();
+            ImGui::PushID(y * matrixSizeX + x);
+            ImGui::Selectable("?", false, 0, ImVec2(50, 50));
+            ImGui::PopID();
+        }
+    }
+
+    ImGui::Text("Matrice finale:");
+
+    ImGui::EndChild(); // End Matrice initiale
+
+    ImGui::End(); // End fenetre top left
+
+    // Begin fenetre top right
+    ImGui::SetNextWindowSize(topRightWindowSize);
+    ImGui::SetNextWindowPos(ImVec2(windowPos.x + topLeftWindowSize.x, 0)); // Position at the top-right corner
+    ImGui::Begin("Right Top Window", nullptr, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoScrollbar);
+
+    // rajouter le code pour la partie top right
+
+    ImGui::End(); // End fenetre top right
+
+    // Begin fenetre bas
+    ImGui::SetNextWindowSize(bottomWindowSize);
+    ImGui::SetNextWindowPos(ImVec2(0, io.DisplaySize.y * 0.8f)); // Position at the bottom-left corner
+    ImGui::Begin("Bottom Part", nullptr, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoScrollbar);
+
+    // rajouter des boutons clickables
+    if (ImGui::Button("Calcul noyeau")) {
+        // Code de calcul
+    }
+    ImGui::SameLine(); // Align buttons horizontally
+    if (ImGui::Button("Calcul rang")) {
+        // Code de calcul
+    }
+    ImGui::SameLine(); // Align buttons horizontally
+    if (ImGui::Button("Calcul inverse")) {
+        // Code de calcul
+    }
+
+    ImGui::End(); // End fenetre bas
 }
 
-void PivotGui::Destroy() {}
+void PivotGui::Destroy() {}
\ No newline at end of file
diff --git a/xmake.lua b/xmake.lua
index 75f1954..3123ed7 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -1,6 +1,6 @@
 add_rules("mode.debug", "mode.release")
 
-add_requires("libsdl >= 2")
+add_requires("libsdl 2.28.3", {configs = {sdlmain = false}})
 add_requires("imgui", {configs = {sdl2_no_renderer = true, opengl3 = true}})
 
 set_languages("c++17")