diff --git a/examples/mystery_sand/node_2d.tscn b/examples/mystery_sand/node_2d.tscn
new file mode 100644
index 0000000..53d2265
--- /dev/null
+++ b/examples/mystery_sand/node_2d.tscn
@@ -0,0 +1,36 @@
+[gd_scene load_steps=4 format=3 uid="uid://kgubng073jgd"]
+
+[ext_resource type="Script" path="res://addons/compute_shader_studio/compute_shader_studio_2d.gd" id="1_pm5r1"]
+[ext_resource type="Texture2D" uid="uid://demftcowdd5c6" path="res://examples/icon.svg" id="2_truio"]
+
+[sub_resource type="GDScript" id="GDScript_p6fp7"]
+script/source = "extends Sprite2D
+
+var compute_shader_material
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass;
+	
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	pass;
+
+"
+
+[node name="Node2D" type="Node2D"]
+metadata/_edit_horizontal_guides_ = [-262.0]
+
+[node name="ComputeShaderStudio2D" type="Node" parent="." node_paths=PackedStringArray("data")]
+script = ExtResource("1_pm5r1")
+glsl_file = "res://examples/2dFluidSimulation/shader.cpp"
+GLSL_code = ""
+data = [NodePath("../Icon")]
+
+[node name="Icon" type="Sprite2D" parent="."]
+texture_filter = 1
+position = Vector2(574.5, 327.5)
+scale = Vector2(8.97656, 5.14844)
+texture = ExtResource("2_truio")
+script = SubResource("GDScript_p6fp7")
diff --git a/examples/mystery_sand/shader.cpp b/examples/mystery_sand/shader.cpp
new file mode 100644
index 0000000..fa7aa4e
--- /dev/null
+++ b/examples/mystery_sand/shader.cpp
@@ -0,0 +1,141 @@
+
+// Write your code HERE
+int mouseClicked = 0;
+
+
+void main() {
+
+	uint x = gl_GlobalInvocationID.x;
+	uint y = gl_GlobalInvocationID.y;
+    uint p = x + y * WSX;
+
+    //initialisation
+    if(step == 0){
+        if(x>50 && x<70 && y>50 && y<80){
+        data_0[p] = 0xFF00FF00; //fluide initial
+        }
+        else if(y>120){
+        data_0[p] = 0xFFFFFFFF; //sol
+        }
+        else if(x>125 || x < 3){
+            data_0[p] = 0xFFFFFFFF;
+        }
+        else{
+            data_0[p] = 0x00000000; //backround
+        }
+    }
+    //boucle principale
+    else{
+        //mouse left
+        if(x == mousex && y==mousey && mouse_button == 1){
+            data_0[p] = 0xFFFFFFFF;
+            data_0[p+1] = 0xFFFFFFFF;
+            data_0[p-1] = 0xFFFFFFFF;
+            data_0[p+WSX] = 0xFFFFFFFF;
+            data_0[p+WSX+1] = 0xFFFFFFFF;
+            data_0[p+WSX-1] = 0xFFFFFFFF;
+        }
+        if(x == mousex && y==mousey && mouse_button == 0){
+            data_0[p] = 0xFF0000FF;
+        }
+        //mouse left
+        if(x == mousex && y==mousey && mouse_button == 2){
+            data_0[p] = 0xFF00FF00;
+        }
+        //both at the same time
+        if(x == mousex && y==mousey && mouse_button == 3){
+            data_0[p] = 0xFFFF0000;
+        }
+        //si le pixel est non vide et non sol
+        if(data_0[p] != 0xFFFFFFFF && data_0[p]!= 0x00000000){
+            //il tombe
+            if(data_0[p+WSX] == 0x00000000){
+               data_0[p+WSX] = data_0[p];
+               data_0[p] =  0x00000000;
+            }
+             //l'eau va sur les cotes
+             
+              //vide a gauche en bas
+             else if(data_0[p-1+WSX] == 0x00000000){
+                data_0[p-1+WSX] = data_0[p];
+                data_0[p] = 0x00000000;
+             }
+
+             //vide a droite en bas
+             else if(data_0[p+1+WSX] == 0x00000000){
+                data_0[p+1+WSX] = data_0[p];
+                data_0[p] = 0x00000000;
+             }
+
+             //il y a un pixel en bas/gacuhe/droit
+             else{
+                if(y<120){
+
+                    if(data_0[p]!=0xFFFFFFFF && data_0[p+WSX]!=0xFFFFFFFF && data_0[p+WSX+1]!=0xFFFFFFFF && data_0[p+WSX-1]!=0xFFFFFFFF ){
+
+                        int rouge1 =(data_0[p] & 0x000000FF);
+                        int green1 =((data_0[p] & 0x0000FF00)>>8);
+                        int blue1 = (data_0[p] & 0x00FF0000)>>16;
+
+                        int rouge2 =(data_0[p+WSX] & 0x000000FF);
+                        int green2 =((data_0[p+WSX] & 0x0000FF00)>>8);
+                        int blue2 = (data_0[p+WSX] & 0x00FF0000)>>16;
+
+                        int rouge3 =(data_0[p+WSX-1] & 0x000000FF);
+                        int green3 =((data_0[p+WSX-1] & 0x0000FF00)>>8);
+                        int blue3 = (data_0[p+WSX-1] & 0x00FF0000)>>16;
+
+                        int rouge4 =(data_0[p+WSX+1] & 0x000000FF);
+                        int green4 =((data_0[p+WSX+1] & 0x0000FF00)>>8);
+                        int blue4 = (data_0[p+WSX+1] & 0x00FF0000)>>16;
+
+                        int rouge = (rouge1 + rouge2 + rouge3 + rouge4)/4;
+                        int green = (green1 + green2 + green3 + green4)/4;
+                        int blue = (blue1 + blue2 + blue3 + blue4)/4;
+
+
+                        int couleur = (0xFF << 24) + (blue<<16) + (green << 8)  +rouge ; 
+
+                        data_0[p+WSX] = couleur;
+                        data_0[p] = couleur;
+                        
+                        ///??
+                        //if(sin(step/30) >= 0){
+                            data_0[p+WSX+1] = couleur;
+                            data_0[p+WSX-1] = couleur;
+                        //}else{
+                            data_0[p+WSX-1] = couleur;
+                            data_0[p+WSX+1] = couleur;
+                        //}
+
+
+
+                    }
+
+                    
+                    
+                    
+                    
+                }
+                
+             }
+
+             
+
+          
+           
+        }
+
+        
+
+    }
+
+    
+
+
+	//
+	//data_0[p] = 0xFFF00FFF - int(p)*(step+1);
+
+
+
+}