diff --git a/DungeonShooting_Godot/resource/material/Sawtooth.tres b/DungeonShooting_Godot/resource/material/Sawtooth.tres
index 73c3175..68a3ed6 100644
--- a/DungeonShooting_Godot/resource/material/Sawtooth.tres
+++ b/DungeonShooting_Godot/resource/material/Sawtooth.tres
@@ -2,6 +2,5 @@
 
 [ext_resource type="Shader" path="res://resource/shader/Sawtooth.gdshader" id="1_nrhtr"]
 
-
 [resource]
 shader = ExtResource("1_nrhtr")
diff --git a/DungeonShooting_Godot/resource/shader/Sawtooth.gdshader b/DungeonShooting_Godot/resource/shader/Sawtooth.gdshader
index cbbc062..d428194 100644
--- a/DungeonShooting_Godot/resource/shader/Sawtooth.gdshader
+++ b/DungeonShooting_Godot/resource/shader/Sawtooth.gdshader
@@ -1,18 +1,167 @@
 shader_type canvas_item;
 
+bool checkLB(float len, sampler2D tex, vec2 uv) {
+	int c = 0;
+	int c2 = 0;
+	if (texture(tex, uv + vec2(-len, 0.0)).a > 0.0) {
+		c++;
+		c2 += 1;
+	} else if (texture(tex, uv + vec2(-len * 2.0, 0.0)).a > 0.0) {
+		c++;
+		c2 += 2;
+	}
+	if (c > 0) {
+		if (texture(tex, uv + vec2(0.0, -len)).a > 0.0) {
+			c++;
+			c2 += 1;
+		} else if (texture(tex, uv + vec2(0.0, -len * 2.0)).a > 0.0) {
+			c++;
+			c2 += 2;
+		}
+	}
+	return c >= 2 && c2 <= 3;
+}
+
+bool checkLT(float len, sampler2D tex, vec2 uv) {
+	int c = 0;
+	int c2 = 0;
+	if (texture(tex, uv + vec2(-len, 0.0)).a > 0.0) {
+		c++;
+		c2 += 1;
+	} else if (texture(tex, uv + vec2(-len * 2.0, 0.0)).a > 0.0) {
+		c++;
+		c2 += 2;
+	}
+	if (c > 0) {
+		if (texture(tex, uv + vec2(0.0, len)).a > 0.0) {
+			c++;
+			c2 += 1;
+		} else if (texture(tex, uv + vec2(0.0, len * 2.0)).a > 0.0) {
+			c++;
+			c2 += 2;
+		}
+	}
+	return c >= 2 && c2 <= 3;
+}
+
+bool checkRB(float len, sampler2D tex, vec2 uv) {
+	int c = 0;
+	int c2 = 0;
+	if (texture(tex, uv + vec2(len, 0.0)).a > 0.0) {
+		c++;
+		c2 += 1;
+	} else if (texture(tex, uv + vec2(len * 2.0, 0.0)).a > 0.0) {
+		c++;
+		c2 += 2;
+	}
+	if (c > 0) {
+		if (texture(tex, uv + vec2(0.0, -len)).a > 0.0) {
+			c++;
+			c2 += 1;
+		} else if (texture(tex, uv + vec2(0.0, -len * 2.0)).a > 0.0) {
+			c++;
+			c2 += 2;
+		}
+	}
+	return c >= 2 && c2 <= 3;
+}
+
+bool checkRT(float len, sampler2D tex, vec2 uv) {
+	int c = 0;
+	int c2 = 0;
+	if (texture(tex, uv + vec2(len, 0.0)).a > 0.0) {
+		c++;
+		c2 += 1;
+	} else if (texture(tex, uv + vec2(len * 2.0, 0.0)).a > 0.0) {
+		c++;
+		c2 += 2;
+	}
+	if (c > 0) {
+		if (texture(tex, uv + vec2(0.0, len)).a > 0.0) {
+			c++;
+			c2 += 1;
+		} else if (texture(tex, uv + vec2(0.0, len * 2.0)).a > 0.0) {
+			c++;
+			c2 += 2;
+		}
+	}
+	return c >= 2 && c2 <= 3;
+}
+
+
 void vertex() {
-	VERTEX = VERTEX * vec2(4.0);
+	//VERTEX = VERTEX * vec2(4.0);
 }
 
 void fragment() {
-    vec2 pixel_size = 1.0 / vec2(textureSize(TEXTURE, 0));
-    vec4 color = vec4(0.0);
-    for (int x = -1; x <= 1; x++) {
-        for (int y = -1; y <= 1; y++) {
-			color += texture(TEXTURE, UV + vec2(float(x), float(y)) * pixel_size / 2.0);
-        }
-    }
-    color /= 9.0;
-    COLOR = color;
-}
 
+	if (COLOR.a == 0.0) {
+		int c = 0;
+		vec4 cf = vec4(0.0, 0.0, 0.0, 0.0);
+		vec4 cL = texture(TEXTURE, UV + vec2(-TEXTURE_PIXEL_SIZE.x, 0.0));
+		vec4 cr = texture(TEXTURE, UV + vec2(TEXTURE_PIXEL_SIZE.x, 0.0));
+		vec4 ct = texture(TEXTURE, UV + vec2(0.0, TEXTURE_PIXEL_SIZE.y));
+		vec4 cb = texture(TEXTURE, UV + vec2(0.0, -TEXTURE_PIXEL_SIZE.y));
+		if (cL.a > 0.0) {
+			c++;
+			cf += cL;
+		}
+		if (cr.a > 0.0) {
+			c++;
+			cf += cr;
+		}
+		if (ct.a > 0.0) {
+			c++;
+			cf += ct;
+		}
+		if (cb.a > 0.0) {
+			c++;
+			cf += cb;
+		}
+		if (c >= 2) {
+
+			if (cb.a > 0.0 && cL.a > 0.0) {
+				if (checkLB(TEXTURE_PIXEL_SIZE.y / 4.0, TEXTURE, UV)) {
+					//cf /= float(c);
+					COLOR = cf;
+				}
+			}
+			if (ct.a > 0.0 && cL.a > 0.0) {
+				if (checkLT(TEXTURE_PIXEL_SIZE.y / 4.0, TEXTURE, UV)) {
+					//cf /= float(c);
+					COLOR = cf;
+				}
+			}
+
+			if (cb.a > 0.0 && cr.a > 0.0) {
+				if (checkRB(TEXTURE_PIXEL_SIZE.y / 4.0, TEXTURE, UV)) {
+					//cf /= float(c);
+					COLOR = cf;
+				}
+			}
+			if (ct.a > 0.0 && cr.a > 0.0) {
+				if (checkRT(TEXTURE_PIXEL_SIZE.y / 4.0, TEXTURE, UV)) {
+					//cf /= float(c);
+					COLOR = cf;
+				}
+			}
+		}
+	} else {
+		int c = 0;
+		if (texture(TEXTURE, UV + vec2(-TEXTURE_PIXEL_SIZE.x, TEXTURE_PIXEL_SIZE.y)).a > 0.0) {
+			c++;
+		}
+		if (texture(TEXTURE, UV + vec2(TEXTURE_PIXEL_SIZE.x, TEXTURE_PIXEL_SIZE.y)).a > 0.0) {
+			c++;
+		}
+		if (texture(TEXTURE, UV + vec2(-TEXTURE_PIXEL_SIZE.x, -TEXTURE_PIXEL_SIZE.y)).a > 0.0) {
+			c++;
+		}
+		if (texture(TEXTURE, UV + vec2(TEXTURE_PIXEL_SIZE.x, -TEXTURE_PIXEL_SIZE.y)).a > 0.0) {
+			c++;
+		}
+		if (c <= 1) {
+			COLOR = vec4(0.0, 0.0, 0.0, 0.0);
+		}
+	}
+}
diff --git a/DungeonShooting_Godot/resource/sprite/brush/Temp.png b/DungeonShooting_Godot/resource/sprite/brush/Temp.png
new file mode 100644
index 0000000..c175e2d
--- /dev/null
+++ b/DungeonShooting_Godot/resource/sprite/brush/Temp.png
Binary files differ
diff --git a/DungeonShooting_Godot/resource/sprite/brush/Temp.png.import b/DungeonShooting_Godot/resource/sprite/brush/Temp.png.import
new file mode 100644
index 0000000..d3e4a73
--- /dev/null
+++ b/DungeonShooting_Godot/resource/sprite/brush/Temp.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://b6iklkty6p8sx"
+path="res://.godot/imported/Temp.png-eb88d17e172de4ef1d192f84370ff0de.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://resource/sprite/brush/Temp.png"
+dest_files=["res://.godot/imported/Temp.png-eb88d17e172de4ef1d192f84370ff0de.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/DungeonShooting_Godot/scene/test/TestCreateSector.tscn b/DungeonShooting_Godot/scene/test/TestCreateSector.tscn
index 795fc2e..74af5a9 100644
--- a/DungeonShooting_Godot/scene/test/TestCreateSector.tscn
+++ b/DungeonShooting_Godot/scene/test/TestCreateSector.tscn
@@ -1,7 +1,10 @@
-[gd_scene load_steps=4 format=3 uid="uid://d4axmwaqk1f55"]
+[gd_scene load_steps=7 format=3 uid="uid://d4axmwaqk1f55"]
 
 [ext_resource type="Script" path="res://src/test/TestCreateSector.cs" id="1_ieqp4"]
 [ext_resource type="Texture2D" uid="uid://uhhfgdhpk7i4" path="res://icon.png" id="2_73jok"]
+[ext_resource type="Texture2D" uid="uid://b6iklkty6p8sx" path="res://resource/sprite/brush/Temp.png" id="3_mchtg"]
+[ext_resource type="Material" uid="uid://cca0ka64xmrrd" path="res://resource/material/Sawtooth.tres" id="3_p1gue"]
+[ext_resource type="Texture2D" uid="uid://jnx4wfn5hu3u" path="res://resource/sprite/brush/Brush3.png" id="5_1h5h3"]
 
 [sub_resource type="CircleShape2D" id="CircleShape2D_42m3w"]
 
@@ -20,3 +23,14 @@
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="Area2D2"]
 shape = SubResource("CircleShape2D_42m3w")
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+material = ExtResource("3_p1gue")
+position = Vector2(32, 25)
+texture = ExtResource("3_mchtg")
+centered = false
+
+[node name="Sprite2D2" type="Sprite2D" parent="."]
+position = Vector2(31, 36)
+texture = ExtResource("5_1h5h3")
+centered = false